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FAA · Airworthiness Directive

Airworthiness Directives; Various Boeing and McDonnell Douglas Transport Category Airplanes

AD 02-15661 Published 2002-06-26 1 model 854 US-registered tails affected Federal Register ↗

Abstract

This document proposes to adopt a new airworthiness directive (AD) that would apply to all Cessna Aircraft Company (Cessna) Models 208 and 208B airplanes. This proposed AD would require you to repetitively inspect the inboard forward flap bellcranks for cracks or replace bellcranks depending on the amount of usage. This proposed AD is the result of Cessna re-evaluating the bellcrank life limit analysis and determining that the original estimate is too high. The actions specified by this proposed AD are intended to detect, correct, and prevent future cracks in the bellcrank, which could result in failure of this part. Such failure could lead to damage to the flap system and surrounding structure and result in reduced or loss of control of the airplane.

Applicability

Aircraft makes and models this AD applies to, sorted by US-registered fleet size.

Federal Register text

Verbatim from the Federal Register publication — required actions, compliance times, parts/serial numbers, and methods of compliance. The Federal Register is the legally binding document; this rendering is for readability. Cite: 67 FR 43058.

[Federal Register Volume 67, Number 123 (Wednesday, June 26, 2002)] [Proposed Rules] [Pages 43058-43068] From the Federal Register Online via the Government Publishing Office [www.gpo.gov] [FR Doc No: 02-15661]

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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. 2002-CE-23-AD] RIN 2120-AA64

Airworthiness Directives; Cessna Aircraft Company Models 208 and 208B Airplanes

AGENCY: Federal Aviation Administration, DOT.

ACTION: Notice of proposed rulemaking (NPRM).

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SUMMARY: This document proposes to adopt a new airworthiness directive (AD) that would apply to all Cessna Aircraft Company (Cessna) Models 208 and 208B airplanes. This proposed AD would require you to repetitively inspect the inboard forward flap bellcranks for cracks or replace bellcranks depending on the amount of usage. This proposed AD is the result of Cessna re-evaluating the bellcrank life limit analysis and determining that the original estimate is too high. The actions specified by this proposed AD are intended to detect, correct, and prevent future cracks in the bellcrank, which could result in failure of this part. Such failure could lead to damage to the flap system and surrounding structure and result in reduced or loss of control of the airplane.

DATES: The Federal Aviation Administration (FAA) must receive any comments on this proposed rule on or before August 28, 2002.

ADDRESSES: Submit comments to FAA, Central Region, Office of the Regional Counsel, Attention: Rules Docket No. 2002-CE-23-AD, 901 Locust, Room 506, Kansas City, Missouri 64106. You may view any comments at this location between 8 a.m. and 4 p.m., Monday

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through Friday, except Federal holidays. You may also send comments electronically to the following address: [email protected]. Comments sent electronically must contain ``Docket No. 2002-CE-23-AD'' in the subject line. If you send comments electronically as attached electronic files, the files must be formatted in Microsoft Word 97 for Windows or ASCII text. You may get service information that applies to this proposed AD from Cessna Aircraft Company, Product Support, P.O. Box 7706, Wichita, Kansas 67277; telephone: (316) 517-5800; facsimile: (316) 942-9006. You may also view this information at the Rules Docket at the address above.

FOR FURTHER INFORMATION CONTACT: Paul Nguyen, Aerospace Engineer, FAA, Aircraft Certification Office, 1801 Airport Road, Room 100, Wichita, Kansas 67209; telephone: 316-946-4125; facsimile: 816-946-4407.

SUPPLEMENTARY INFORMATION:

Comments Invited

How do I comment on this proposed AD?

The FAA invites comments on this proposed rule. You may submit whatever written data, views, or arguments you choose. You need to include the rule's docket number and submit your comments to the address specified under the caption ADDRESSES. We will consider all comments received on or before the closing date. We may amend this proposed rule in light of comments received. Factual information that supports your ideas and suggestions is extremely helpful in evaluating the effectiveness of this proposed AD action and determining whether we need to take additional rulemaking action.

Are there any specific portions of this proposed AD I should pay attention to?

The FAA specifically invites comments on the overall regulatory, economic, environmental, and energy aspects of this proposed rule that might suggest a need to modify the rule. You may view all comments we receive before and after the closing date of the rule in the Rules Docket. We will file a report in the Rules Docket that summarizes each contact we have with the public that concerns the substantive parts of this proposed AD.

How can I be sure FAA receives my comment?

If you want FAA to acknowledge the receipt of your mailed comments, you must include a self-addressed, stamped postcard. On the postcard, write ``Comments to Docket No. 2002-CE-23-AD.'' We will date stamp and mail the postcard back to you.

Discussion

What events have caused this proposed AD?

A search by the FAA of the service difficulty database has revealed 10 cracked bellcrank incidents on Cessna Models 208 and 208B airplanes. As a result, Cessna has re-evaluated the bellcrank life limit analysis and detemined 7,000 landings is more accurate than the original estimate of 9,000 landings. Cessna has revised the Models 208 and 208B Maintenance Manual and developed a service bulletin to notify the public that the inboard forward flap bellcrank life limit has been reduced to 7,000 landings. Since some Model 208 airplanes have exceeded 7,000 landings, we have determined that an AD is necessary to require replacement of the bellcrank in those airplanes.

What are the consequences if the condition is not corrected?

If not detected and corrected, a cracked bellcrank could fail. Such failure could lead to damage to the flap system and surrounding structure and result in reduced or loss of control of the airplane.

Is there service information that applies to this subject?

Cessna has issued Service Bulletin No. CAB02-1, dated February 11, 2002.

What are the provisions of this service information?

The service bulletin includes procedures for:

-Inspecting using eddy current methods, the inboard forward flap bellcrank for cracks; and --Replacing bellcranks.

The FAA's Determination and an Explanation of the Provisions of This Proposed AD

What has FAA decided?

After examining the circumstances and reviewing all available information related to the incidents described above, we have determined that:

--The unsafe condition referenced in this document exists or could develop on other Cessna Models 208 and 208B airplanes of the same type design; --The life limits of the bellcranks should be reduced from 9,000 landings to 7,000 landings; --The actions specified in the previously-referenced service information should be accomplished on the affected airplanes; and --AD action should be taken in order to correct this unsafe condition.

What would this proposed AD require?

This proposed AD would require you to incorporate the actions in the previously-referenced service bulletin.

Cost Impact

How many airplanes would this proposed AD impact?

We estimate that this proposed AD affects 1,300 airplanes in the U.S. registry.

What would be the cost impact of this proposed AD on owners/operators of the affected airplanes?

We estimate the following costs to accomplish the proposed inspection:

---------------------------------------------------------------------------------------------------------------- Labor cost Parts cost Total cost per airplane Total cost on U.S. operators ---------------------------------------------------------------------------------------------------------------- 1 workhour x $60 per hour=$60.... No cost for parts... $60 $60 x 1,300=$78,000. ----------------------------------------------------------------------------------------------------------------

We estimate the following costs to accomplish any necessary replacements that would be required based on the reduced life limits:

-------------------------------------------------------------------------------------------------------------------------------------------------------- Labor cost Parts cost Total cost per airplane Total cost on U.S. operators -------------------------------------------------------------------------------------------------------------------------------------------------------- 3 workhours x $60 per hour=$180.......... $1,793 $180 + $1,973=$1,973........................... $1,973 x 1,300=$2,564,900. --------------------------------------------------------------------------------------------------------------------------------------------------------

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Regulatory Impact

Would this proposed AD impact various entities?

The regulations proposed herein would not have a substantial direct effect on the States, on the relationship between the national government and the States, or on the distribution of power and responsibilities among the various levels of government. Therefore, it is determined that this proposed rule would not have federalism implications under Executive Order 13132.

Would this proposed AD involve a significant rule or regulatory action?

For the reasons discussed above, I certify that this proposed action (1) Is not a ``significant regulatory action'' under Executive Order 12866; (2) is not a ``significant rule'' under DOT Regulatory Policies and Procedures (44 FR 11034, February 26, 1979); and (3) if promulgated, will not have a significant economic impact, positive or negative, on a substantial number of small entities under the criteria of the Regulatory Flexibility Act. A copy of the draft regulatory evaluation prepared for this action has been placed in the Rules Docket. A copy of it may be obtained by contacting the Rules Docket at the location provided under the caption ADDRESSES.

List of Subjects in 14 CFR Part 39

Air transportation, Aircraft, Aviation safety, Safety.

The Proposed Amendment

Accordingly, under the authority delegated to me by the Administrator, the Federal Aviation Administration proposes to amend part 39 of the Federal Aviation Regulations(14 CFR part 39) as follows:

PART 39--AIRWORTHINESS DIRECTIVES

1. The authority citation for part 39 continues to read as follows:

Authority: 49 U.S.C. 106(g), 40113, 44701.

Sec. 39.13 [Amended]

2. FAA amends Sec. 39.13 by adding a new airworthiness directive (AD) to read as follows:

CESSNA AIRCRAFT COMPANY: Docket No. 2002-CE-23-AD.

(a) What airplanes are affected by this AD? This AD affects Models 208 and 208B airplanes, all serial numbers, that are certificated in any category. (b) Who must comply with this AD? Anyone who wishes to operate any of the airplanes identified in paragraph (a) of this AD must comply with this AD. (c) What problem does this AD address? The actions specified by this AD are intended to detect, correct, and prevent cracks in the bellcrank, which could result in failure of this part. Such failure could lead to damage to the flap system and surrounding structure and result in reduced or loss of control of the airplane. (d) What actions must I accomplish to address this problem? To address this problem, you must accomplish the following:

------------------------------------------------------------------------ Actions Compliance Procedures ------------------------------------------------------------------------ (1) Inspect, using eddy current Initially inspect In accordance with inspection, the inboard forward upon accumulation the Inspection flap bellcrank for cracks. of 4,000 landings Instructions of on the bellcrank Cessna Service or within the Bulletin No. next 250 landings CAB02-1, dated after the February 11, effective date of 2002, and the this AD, applicable whichever occurs maintenance later. manual. Repetitively inspect thereafter at every 500 landings until 7,000 landings are accumulated. --------------------------------- Inboard forward

date of this AD.Note 2: The compliance times of this AD are presented in landings instead of hours. If the number of landings is unknown, hours TIS may be used by multiplying the number of hours TIS by 1.25.

(e) Can I comply with this AD in any other way? You may use an alternative method of compliance or adjust the compliance time if: (1) Your alternative method of compliance provides an equivalent level of safety; and (2) The Manager, Wichita Aircraft Certification Office, approves your alternative. Submit your request through an FAA Principal Maintenance Inspector, who may add comments and then send it to the Manager, Wichita Aircraft Certification Office.

Note 3: This AD applies to each airplane identified in paragraph (a) of this AD, regardless of whether it has been modified, altered, or repaired in the area subject to the requirements of this AD. For airplanes that have been modified, altered, or repaired so that the performance of the requirements of this AD is affected, the owner/operator must request approval for an alternative method of compliance in accordance with paragraph (e) of this AD. The request should include an assessment of the effect of the modification, alteration, or repair on the unsafe condition addressed by this AD; and, if you have not eliminated the unsafe condition, specific actions you propose to address it.

(f) Where can I get information about any already-approved alternative methods of compliance? Contact Paul Nguyen, Aerospace Engineer, FAA, Aircraft Certification Office, 1801 Airport Road, Room 100, Wichita, Kansas 67209; telephone: 316-946-4125; facsimile: 816-946-4407. (g) What if I need to fly the airplane to another location to comply with this AD? The FAA can issue a special flight permit under sections 21.197 and 21.199 of the Federal Aviation Regulations (14 CFR 21.197 and 21.199) to operate your airplane to a location where you can accomplish the requirements of this AD. (h) How do I get copies of the documents referenced in this AD? You may get copies of the documents referenced in this AD from Cessna Aircraft Company, Product Support, P.O. Box 7706, Wichita, Kansas 67277; telephone: (316) 517-5800; facsimile: (316) 942-9006. You may view these documents at FAA, Central Region, Office of the Regional Counsel, 901 Locust, Room 506, Kansas City, Missouri 64106.

Issued in Kansas City, Missouri, on June 14, 2002. Dorenda D. Baker,..... Acting Manager, Small Airplane Directorate, Aircraft Certification Service..

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). SUMMARY: This document proposes the adoption of a new airworthiness directive (AD) that is applicable to various Boeing and McDonnell Douglas transport category airplanes. This proposal would require revising the Airplane Flight Manual (AFM) to advise the flightcrew to don oxygen masks as a first and immediate step when the cabin altitude warning horn sounds. This action is necessary to prevent incapacitatio n of the flightcrew due to lack of oxygen, which could result in loss of control of the airplane. This action is intended to address the identified unsafe condition..

DATES: Comments must be received by August 12, 2002..

ADDRESSES: Submit comments in triplicate to the Federal Aviation Administratio n (FAA), Transport Airplane Directorate, ANM-114, Attention: Rules Docket No. 2002-NM- 43-AD, 1601 Lind Avenue, SW., Renton, Washington 98055-4056. Comments may be inspected at this location between 9:00 a.m. and 3:00 p.m., Monday through Friday, except Federal holidays. Comments may be submitted via fax to (425) 227- 1232. Comments may also be sent via the Internet using the following address: [email protected]. Comments sent via fax or the Internet must contain ``Docket No. 2002-NM-43- AD'' in the subject line and need not be submitted in triplicate. Comments sent via the Internet as attached electronic files must be formatted in Microsoft Word 97 for Windows or ASCII text.. This information referenced in the proposed rule may be examined at the FAA, Transport Airplane Directorate, 1601 Lind Avenue, SW., Renton, Washington; or at the FAA, Los Angeles Aircraft Certification Office, 3960 Paramount Boulevard, Lakewood, California.

FOR FURTHER INFORMATION CONTACT: Technical Information-- Boeing Airplane Models: Don Eiford, Aerospace Engineer, Systems and Equipment Branch, ANM- 130S, FAA, Seattle Aircraft Certification Office, 1601 Lind Avenue, SW., Renton, Washington 98055-4056; telephone (425) 227- 2788; fax (425) 227- 1181.. Technical Information--McDonnell Douglas Airplane Models: Joe Hashemi, Aerospace Engineer, Flight Test Branch, ANM-160L, FAA, Los Angeles Aircraft Certification Office, 3960 Paramount Boulevard, Lakewood, California 90712-4137; telephone (562) 627-5380; fax (562) 627-5210. Other Information: Judy Golder, Airworthiness Directive Technical Editor/Writer; telephone (425) 687-4241, fax (425) 227-1232. Questions or comments may also be sent via the Internet using the following address: [email protected]. Questions or comments sent via the Internet as attached electronic files must be formatted in Microsoft Word 97 for Windows or ASCII text.

SUPPLEMENTARY INFORMATION:. Interested persons are invited to participate in the making of the proposed rule by submitting such written data, views, or arguments as they may desire. Communications shall identify the Rules Docket number and be submitted in triplicate to the address specified above. All communications received on or before the closing date for comments, specified above, will be considered before taking action on the proposed rule. The proposals contained in this action may be changed in light of the comments received. Submit comments using the following format: Organize comments issue- by-issue. For example, discuss a request to change the compliance time and a request to change the service bulletin reference as two separate issues. For each issue, state what specific change to the proposed AD is being requested. Include justification (e.g., reasons or data) for each request. Comments are specifically invited on the overall regulatory, economic, environmental, and energy aspects of the proposed rule. All comments submitted will be available, both before and after the closing date for comments, in the Rules Docket for examination by interested persons. A report summarizing each FAA-public contact concerned with the substance of this proposal will be filed in the Rules Docket. Commenters wishing the FAA to acknowledge receipt of their comments submitted in response to this action must submit a self-addressed, stamped postcard on which the following statement is made: ``Comments to Docket Number 2002-NM-43- AD.'' The postcard will be date stamped and returned to the commenter. Any person may obtain a copy of this NPRM by submitting a request to the FAA, Transport Airplane Directorate, ANM-114, Attention: Rules Docket No. 2002-NM-43-AD, 1601 Lind Avenue, SW., Renton, Washington 98055-4056. On October 25, 1999, a Learjet Model 35 airplane operating under part 135 of the Federal Aviation Regulations (14 CFR 135) departed Orlando International Airport en route to Dallas, Texas. Air traffic control lost communication with the airplane near Gainesville, Florida. Air Force and National Guard airplanes intercepted the airplane, but the flightcrews of the chase airplanes indicated that the windows of the Model 35 airplane were apparently frosted over, which prevented the flightcrews of the chase airplanes from observing the interior of the Model 35 airplane. The flightcrews of the chase airplanes reported that they did not observe any damage to the airplane. Subsequently, the Model 35 airplane ran out of fuel and crashed in South Dakota. To date, causal factors of the accident have not been determined. However, lack of the Learjet flightcrew's response to air traffic control poses the possibility of flightcrew incapacitation and raises concerns with the pressurization and oxygen systems. Recognizing these concerns, the FAA initiated a special certification review (SCR) to determine if pressurization and oxygen systems on Model 35 airplanes were certificated properly, and to determine if any unsafe design features exist in the pressurization and oxygen systems. The SCR team found that there have been several accidents and incidents that may have involved incapacitation of the flightcrews during flight. In one case, the airplane flightcrew did not activate the pressurization system or don their oxygen masks and the airplane flew in excess of 35,000 feet altitude. In another case, the airplane flightcrews did not don their oxygen masks when the cabin aural warning was activated. Further review by the SCR team indicates that the Airplane Flight Manual (AFM) of Learjet Model 35 and 36 airplanes does not have an emergency procedure that requires donning the flightcrew oxygen masks when the cabin altitude aural warning is activated. Additional review has found that the AFMs of Learjet Model 35A and 36A airplanes also do not contain appropriate flightcrew actions when the cabin altitude aural warning is activated. However, the AFMs do contain an abnormal procedure that allows the flightcrew to troubleshoot the pressurization system prior to donning the oxygen masks after the cabin altitude warning sounds. Troubleshooting may delay donning of the oxygen masks to the point that

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flightcrews may become incapable he SCR findings indicated that the most likely cause for incapacitation was hypoxia (lack of oxygen). The only other plausible cause of incapacitation is exposure to toxic substances. However, no evidence was found to support the existence of toxic substances. Delayed response of the flightcrew in donning oxygen masks as a first and immediate action upon the activation of the cabin altitude warning horn could lead to incapacitation of the flightcrew and loss of control of the airplane. A review of the emergency procedures in the AFMs for various Boeing and McDonnell Douglas transport category airplanes revealed that those AFMs do not contain the requirement for the flightcrew to immediately don emergency oxygen masks. Therefore, various Boeing and McDonnell Douglas transport category airplanes may be subject to the same unsafe condition as described above. The FAA has determined that the AFMs for Boeing Model 737-600, 737-700, 737-800, 737-900, 747- 400, 747-400D, 747-400F, 757, 767, and 777 series airplanes, and McDonnell Douglas Model 717- 200 airplanes, already contain appropriate instructions for the donning of emergency oxygen masks. Therefore, these airplanes would not be subject to this proposed AD. We have previously issued AD 2000-23-10, amendment 39-11980 (65 FR 70294, November 22, 2000), which applies to all Lockheed Model 188A and 188C series airplanes. That AD requires a revision of the AFM to add procedures for donning the flightcrew oxygen masks when the cabin altitude warning horn is activated. The requirements of that AD are intended to prevent incapacitation of the flightcrew as a result of lack of oxygen and consequent loss of control of the airplane. We have also previously issued AD 2001-22-10, amendment 39- 12489 (66 FR 54425, October 29, 2001), which applies to all Dassault Model Mystere-Falcon 50, Mystere-Falcon 900, and Falcon 900EX series airplanes. That AD requires revising the Emergency Procedures and Abnormal Procedures sections of the AFM to advise the flightcrew to immediately don oxygen masks in the event of significant pressurization or oxygen level changes. The requirements of that AD are intended to prevent incapacitation of the flightcrew due to lack of oxygen, which could result in their inability to continue to control the airplane. We are continuing to review emergency procedures in the AFMs for other airplane models to ensure that the AFMs contain appropriate instructions for donning the flightcrew oxygen masks. We may consider further rulemaking based on the results of these reviews. Since an unsafe condition has been identified that is likely to exist or develop on other products of these same type designs, the proposed AD would require revising the Emergency Procedures Section of the AFM to advise the flightcrew to don oxygen masks as a first and immediate step when the cabin altitude warning horn sounds. There are approximately 7,077 airplanes (5,178 Boeing airplanes and 1,899 McDonnell Douglas airplanes) of the affected designs in the worldwide fleet. The FAA estimates that 3,479 airplanes (2,392 Boeing airplanes and 1,087 McDonnell Douglas airplanes) of U.S. registry would be affected by this proposed AD. It would take approximately 1 work hour per airplane to accomplish the proposed AFM revision, at an average labor rate of $60 per work hour. Based on these figures, the cost impact of the proposed AD on U.S. operators is estimated to be $208,740, or $60 per airplane. The cost impact figure discussed above is based on assumptions that no operator has yet accomplished any of the proposed requirements of this AD action, and that no operator would accomplish those actions in the future if this proposed AD were not adopted. The cost impact figures discussed in AD rulemaking actions represent only the time necessary to perform the specific actions actually required by the AD. These figures typically do not include incidental costs, such as the time required to gain access and close up, planning time, or time necessitated by other administrative actions. The regulations proposed herein would not have a substantial direct effect on the States, on the relationship between the national Government and the States, or on the distribution of power and responsibilities among the various levels of government. Therefore, it is determined that this proposal would not have federalism implications under Executive Order 13132. For the reasons discussed above, I certify that this proposed regulation (1) is not a ``significant regulatory action'' under Executive Order 12866; (2) is not a ``significant rule'' under the DOT Regulatory Policies and Procedures (44 FR 11034, February 26, 1979); and (3) if promulgated, will not have a significant economic impact, positive or negative, on a substantial number of small entities under the criteria of the Regulatory Flexibility Act. A copy of the draft regulatory evaluation prepared for this action is contained in the Rules Docket. A copy of it may be obtained by contacting the Rules Docket at the location provided under the caption ADDRESSES. Air transportation, Aircraft, Aviation safety, Safety. Accordingly, pursuant to the PART 39-- authority delegated to me by AIRWORTHINESS the Administrator, the Federal DIRECTIVES Aviation Administration proposes to amend part 39 of the Federal Aviation Regulations (14 CFR part 39) as follows: 1. The authority citation for part 39 continues to read as follows:

Authority: 49 U.S.C. 106(g), 40113, 44701. 2. Section 39.13 is amended by adding the following new airworthiness directive:

Transport Category Airplanes: Docket 2002-NM-43-AD.

Applicability: The airplanes listed in Table 1 of this AD, certificated in any category:

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Boeing.......................... 707 series airplanes, 720 series airplanes, 727 series airplanes, 737- 100 series airplanes, 737- 200 series airplanes, 737- 200C series airplanes, 737- 300 series airplanes, 737- 400 series airplanes, 737- 500 series airplanes, 747- 100 series airplanes, 747- 100B series airplanes, 747- 100B UD series airplanes, 747- 200B series airplanes, 747- 200F series airplanes, 747- 200C series airplanes, 747- 300 series airplanes, 747 series airplanes, 747 series airplanes.. cDonnell Douglas............... DC-8-11 airplanes, DC-8-12 airplanes, DC-8- 21 airplanes, DC- 8-31 airplanes, DC-8-32 airplanes, DC-8- 33 airplanes, DC- 8-41 airplanes, DC-8-42 airplanes, DC-8- 43 airplanes, DC- 8-51 airplanes, DC-8-52 airplanes, DC-8- 53 airplanes, DC- 8F-54 airplanes, DC-8-55 airplanes, DC-8F- 55 airplanes, DC- 8-61 airplanes, DC-8-61F airplanes, DC-8- 62 airplanes, DC- 8-62F airplanes, DC-8-63 airplanes, DC-8- 63F airplanes, DC- 8-71 airplanes, DC-8-71F airplanes, DC-8- 72 airplanes, DC- 8-72F airplanes, DC-8-73 airplanes, DC-8- 73F airplanes, DC- 9-11 airplanes, DC-9-12 airplanes, DC-9- 13 airplanes, DC- 9-14 airplanes, DC-9-15 airplanes, DC-9- 15F airplanes, DC- 9-21 airplanes, DC-9-31 airplanes, DC-9- 32 airplanes, DC- 9-32 (VC-9C) airplanes, DC-9- 32F airplanes, DC- 9-32F airplanes (C-9A, C-9B), DC- 9-33F airplanes, DC-9-34 airplanes, DC-9- 34F airplanes, DC- 9-41 airplanes, DC-9-51 airplanes, DC-9- 81 (D-81) airplanes, DC-9- 82 (D-82) airplanes, DC-9- 83 (D-83) airplanes, DC-9- 87 (D-87) airplanes, D-88 airplanes, D-90- 30 airplanes, DC- 10-10 airplanes, DC-10-10F airplanes, DC-10- 15 airplanes, DC- 10-30 airplanes, DC-10-30F airplanes, DC-10- 30F (C-10A, DC- 10) airplanes, DC- 10-40 airplanes, DC-10-40F airplanes, D-10- 10F airplanes, D- 10-30F airplanes, D-11 airplanes, D-11F airplanes.. ------------------------------------------------------------------------

Compliance: equired as indicated, unless accomplished previously. o prevent incapacitation of the flightcrew due to lack of oxygen, which could result in loss of control of the airplane, accomplish the following:

evision to the Airplane Flight anual

(a) Within 90 days after the effective date of this AD: For the applicable airplane models listed in the ``For--'' column of able 2 of this AD, revise the procedures regarding donning oxygen masks in the event of rapid depressurization, as contained in the Emergency rocedures section of the FAA-approved Airplane Flight anual (AF), by replacing the text in the ``eplace--'' column of able 2 of this AD with the information in the applicable figure referenced in the ``With the Information In--'' column of able 2 of this AD. his may be accomplished by recording the AD number of this AD on the applicable figure and inserting it into the AF. able 2 and Figures 1 through 9 follow:

able 2.--AF evisions ---------------------------------------------------------------------------------------------------------------- For-- eplace-- With the Information in-- ---------------------------------------------------------------------------------------------------------------- Boeing odel 707, 720, and 727 ``RAPID DEPRESSURIZATION....................... Figure 1 of this AD. series airplanes. xygen asks & egulators , 100% A'' .......................... ---------------------------------------------------------------------------------------------------------------- Boeing odel 737-100, -200, and - ``RAPID DEPRESSURIZATION (With airplane Figure 2 of this AD. 200C series airplanes. altitude above 14,000 feet ...). IAY .......................... xygen asks & egulators--, 100%'' .......................... ---------------------------------------------------------------------------------------------------------------- Boeing odel 737-300, 737-400, 737- ``RAPID DEPRESSURIZATION (With airplane Figure 3 of this AD. 500, 747-100, 747-100B, 747-100B altitude above 14,000 feet ...). UD, 747-200B, 747-200F, 747-200C, 747-300, 747, and 747 series airplanes. ECA .......................... xygen asks & egulators--, 100%'' .......................... ---------------------------------------------------------------------------------------------------------------- cDonnell Douglas odel DC-8-11, DC- ``RAPID DEPRESSURIZATION....................... Figure 4 of this AD. 8-12, DC-8-21, DC-8-31, DC-8-32, Phase I and II................................. DC-8-33, DC-8-41, DC-8-42, DC-8- Crew oxygen mask--''......................... 43, DC-8-51, DC-8-52, DC-8-53, DC- 8F-54, DC-8-55, DC-8F-55, DC-8-61, DC-8-61F, DC-8-62, DC-8-62F, DC-8- 63, DC-8-63F, DC-8-71, DC-8-71F, DC-8-72, DC-8-72F, DC-8-73, and DC- 8-73F airplanes. ----------------------------------------------------------------------------------------------------------------

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McDonnell Douglas Model DC-9-11, DC- ``RAPID DECOMPRESSION/EMERGENCY DESCENT........ Figure 5 of this AD. 9-12, DC-9-13, DC-9-14, DC-9-15, Phase I and II................................. DC-9-15F, DC-9-21, DC-9-31, DC-9- Manual Pressurization Control--FULL FORWARD AND 32, DC-9-32 (VC-9C), DC-932F, DC-9- MANUALLY LOCKED. 32F (C-9A, C-9B), DC-9-33F, DC-9- Note: Manual Pressurization control forces may 34, DC-9-34F, DC-9-41, and DC-9-51 be high, apply forces as required. airplanes. Crew Oxygen Masks--ON''........................ ---------------------------------------------------------------------------------------------------------------- McDonnell Douglas Model DC-9-81 (MD- ``RAPID DECOMPRESSION/EMERGENCY DESCENT........ Figure 6 of this AD. 81), DC-9-82 (MD-82), DC-9-83 (MD- Phase I and II................................. 83), DC-9-87 (MD-87), and MD-88 Manual Pressurization Control--FULL FORWARD AND airplanes. MANUALLY LOCKED. Note: Manual Pressurization control forces may be high, apply forces as required. Crew Oxygen Masks--ON/EMERGENCY/100%''......... ---------------------------------------------------------------------------------------------------------------- McDonnell Douglas Model MD-90-30 ``RAPID DECOMPRESSION.......................... Figure 7 of this AD. airplanes. OXY MASKS--ON/100%/EMERGENCY'' ---------------------------------------------------------------------------------------------------------------- McDonnell Douglas DC-10-10, DC-10- ``RAPID DEPRESSURIZATION/EMERGENCY DESCENT..... Figure 8 of this AD. 10F, DC-10-15, DC-10-30, DC-10- Recall......................................... 30F, DC-10-30F (KC-10A, KDC-10), Cabin OUTFLOW VALVE--VERIFY CLOSED (CLOSE DC-10-40, and DC-10-40F airplanes. ELECTRICALLY OR MANUALLY IF NOT CLOSED). Oxygen Masks--100% (if required)''............. ---------------------------------------------------------------------------------------------------------------- McDonnell Douglas MD-10-10F, MD-10- ``CABIN ALTITUDE............................... Figure 9 of this AD. 30F, MD-11, and MD-11F airplanes. Memory Item.................................... Outflow Valve--Verify Closed''................. ----------------------------------------------------------------------------------------------------------------

BILLING CODE 4910-13-P

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BILLING CODE 4910-13-C

Alternative Methods of Compliance

(b) An alternative method of compliance or adjustment of the compliance time that provides an acceptable level of safety may be used if approved by the Manager, Seattle Aircraft Certification Office (ACO), FAA; or the Manager, Los Angeles ACO, FAA; as applicable. Operators shall submit their requests through an appropriate FAA Principal Operations Inspector, who may add comments and then send it to the Manager, Seattle ACO, or Los Angeles ACO, as applicable.

Note: Information concerning the existence of approved alternative methods of compliance with this AD, if any, may be obtained from the Seattle ACO or the Los Angeles ACO, as applicable.

Special Flight Permits

(c) Special flight permits may be issued in accordance with sections 21.197 and 21.199 of the Federal Aviation Regulations (14 CFR 21.197 and 21.199) to operate the airplane to a location where the requirements of this AD can be accomplished.

Issued in Renton, Washington, on June 14, 2002. Ali Bahrami, Acting Manager, Transport Airplane Directorate, Aircraft Certification Service. [FR Doc. 02-15661 Filed 6-25-02; 8:45 am] BILLING CODE 4910-13-P

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