AD 05-14089

[Federal Register Volume 70, Number 140 (Friday, July 22, 2005)] [Rules and Regulations] [Pages 42262-42267] From the Federal Register Online via the Government Publishing Office [www.gpo.gov] [FR Doc No: 05-14089]

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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. 99-NM-129-AD; Amendment 39-14190; AD 2005-15-01] RIN 2120-AA64

Airworthiness Directives; Lockheed Model L-1011-385 Series Airplanes

AGENCY: Federal Aviation Administration (FAA), Department of Transportation (DOT).

ACTION: Final rule.

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SUMMARY: This amendment adopts a new airworthiness directive (AD), applicable to all Lockheed Model L-1011-385 series airplanes, that requires repetitive inspections to detect corrosion or fatigue cracking of certain structural elements of the airplane; corrective actions if necessary; and incorporation of certain structural modifications. This action is necessary to prevent corrosion or fatigue cracking of certain structural elements, which could result in reduced structural integrity of the airplane. This action is intended to address the identified unsafe condition.

DATES: Effective August 26, 2005. The incorporation by reference of certain publications listed in the regulations is approved by the Director of the Federal Register as of August 26, 2005.

ADDRESSES: The service information referenced in this AD may be obtained from Lockheed Martin Aircraft & Logistics Centers, 120 Orion Street, Greenville, South Carolina 29605. This information may be examined at the Federal Aviation Administration (FAA), Transport Airplane Directorate, Rules Docket, 1601 Lind Avenue, SW., Renton, Washington; or at the FAA, Atlanta Aircraft Certification Office, One Crown Center, 1895 Phoenix Boulevard, suite 450, Atlanta, Georgia.

FOR FURTHER INFORMATION CONTACT: William Herderich, Aerospace Engineer, Airframe Branch, ACE-117A, FAA, Atlanta Aircraft Certification Office, One Crown Center, 1895 Phoenix Boulevard, suite 450, Atlanta, Georgia 30349; telephone (770) 703-6082; fax (770) 703-6097.

SUPPLEMENTARY INFORMATION: A proposal to amend part 39 of the Federal Aviation Regulations (14 CFR part 39) to include an airworthiness directive (AD) that is applicable to all Lockheed Model L-1011-385 series airplanes was published as a supplemental notice of proposed rulemaking (NPRM) in the Federal Register on December 16, 2004 (69 FR 75282). That action proposed to require repetitive inspections to detect corrosion or fatigue cracking of certain structural elements of the airplane; corrective actions if necessary; and incorporation of certain structural modifications.

Comments

Interested persons have been afforded an opportunity to participate in the making of this amendment. Due consideration has been given to the comments received.

Request To Separate Service Bulletins into Two Tables

One commenter requests that Table 1--Compliance Times be split into two tables--an inspection table (Table I) and an inspection/ modification table (Table II)--similar to that in Lockheed Tristar L- 1011 Service Bulletin 093-51-041, Revision 1, dated March 3, 2000 (referenced in the supplemental NPRM as an appropriate source of service information; hereafter called the ``Collector Service Bulletin''). The commenter believes that Table 1 of the supplemental NPRM implies that all listed service bulletins have a terminating modification, which would cause confusion. Whereas Table I lists service bulletins with no terminating action in most cases, and Table II lists service bulletins with terminating actions. We partially agree. We do not agree that Table 1 of the AD should be split into two tables. As explained in the preamble of the supplemental NPRM, we revised the original NPRM by adding Table 1 for the sole purpose of listing the compliance times for each individual service bulletin listed in Tables I and II of the referenced Lockheed service bulletin. We made this change based on commenters' requests to clarify the compliance times. We agree with the commenter that operators could misinterpret that all service bulletins listed in Table 1 have a terminating modification. Therefore, we have revised Table 1 of the AD by adding a new column ``Terminating Action'' to identify service bulletins that have a terminating modification.

Request To Include Revision Level of Service Bulletin

One commenter notes that the service bulletin date (i.e., 093-53- 054, dated August 12, 1975) identified in paragraph (a)(8) of the supplemental NPRM corresponds to Revision 1 of the service bulletin, not the original issue as indicated. From this comment, we infer that the commenter is requesting clarification. The commenter is correct that the service bulletin reference should have included ``Revision 1.'' We have revised paragraph (a)(8) of the final rule accordingly.

Conclusion

After careful review of the available data, including the comments noted above, the FAA has determined that air safety and the public interest require the adoption of the rule with the change previously described. The FAA has determined that this change will neither increase the economic burden on any operator nor increase the scope of the AD.

Changes to 14 CFR Part 39/Effect on the AD

On July 10, 2002, the FAA issued a new version of 14 CFR part 39 (67 FR 47997, July 22, 2002), which governs the FAA's airworthiness directives system. The regulation now includes material that relates to altered products, special flight permits, and alternative methods of compliance. However, for clarity and consistency in this final rule, we have retained the language of the supplemental NPRM regarding that material.

Cost Impact

There are approximately 125 airplanes of the affected design in the worldwide fleet. The FAA estimates that 49 airplanes (7 in-service and 42 in storage) of U.S. registry will be affected by this AD. Few, if any of the 42 airplanes in storage, will be returned to service due to the economic feasbility of operating and maintaining older technology airplanes. Therefore, the cost estimate below is based on the 7 in- service airplanes. It will take approximately 32 work hours per airplane (for actions specified in Table I of the Collector Service Bulletin) and 97 work hours per airplane (for actions specified in Table II of the Collector Service Bulletin) to accomplish the required inspections, at an average labor rate of $65 per work hour. Based on these figures, the cost impact of the AD on U.S. operators is estimated to be $14,560, or $2,080 per airplane, per inspection cycle (for Table I), and $44,135, or $6,305 per airplane, per inspection cycle (for Table II). It will take approximately 614 work hours per airplane to accomplish the required modifications, at an average labor rate is $65 per work hour. Required parts will cost approximately $142,275 per airplane. Based on these figures, the cost impact of the proposed

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AD on U.S. operators is estimated to be $1,275,295, or $182,185 per airplane. The cost impact figures discussed above are based on assumptions that no operator has yet accomplished any of the requirements of this AD action, and that no operator would accomplish those actions in the future if this 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.

Authority for This Rulemaking

Title 49 of the United States Code specifies the FAA's authority to issue rules on aviation safety. Subtitle I, Section 106, describes the authority of the FAA Administrator. Subtitle VII, Aviation Programs, describes in more detail the scope of the Agency's authority. We are issuing this rulemaking under the authority described in Subtitle VII, Part A, Subpart III, Section 44701, ``General requirements.'' Under that section, Congress charges the FAA with promoting safe flight of civil aircraft in air commerce by prescribing regulations for practices, methods, and procedures the Administrator finds necessary for safety in air commerce. This regulation is within the scope of that authority because it addresses an unsafe condition that is likely to exist or develop on products identified in this rulemaking action.

Regulatory Impact

The regulations adopted herein will 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 final rule does not have federalism implications under Executive Order 13132. For the reasons discussed above, I certify that this 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) 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 final evaluation has been prepared for this action and it is contained in the Rules Docket. A copy of it may be obtained from the Rules Docket at the location provided under the caption ADDRESSES.

List of Subjects in 14 CFR Part 39

Air transportation, Aircraft, Aviation safety, Incorporation by reference, Safety.

Adoption of the Amendment

0 Accordingly, pursuant to the authority delegated to me by the Administrator, the Federal Aviation Administration amends part 39 of the Federal Aviation Regulations (14 CFR part 39) as follows:

PART 39--AIRWORTHINESS DIRECTIVES

0 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]

0 2. Section 39.13 is amended by adding the following new airworthiness directive:

2005-15-01 Lockheed: Amendment 39-14190. Docket 99-NM-129-AD.

Applicability: All Model L-1011-385 series airplanes, certificated in any category.

Note 1: This AD applies to each airplane identified in the preceding applicability provision, 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 (d) 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 the unsafe condition has not been eliminated, the request should include specific proposed actions to address it.

Compliance: Required as indicated, unless accomplished previously. To prevent corrosion or fatigue cracking of certain structural elements, which could result in reduced structural integrity of the airplane, accomplish the following:

Inspections

(a) At the time specified in the ``Initial Compliance Time'' column of Table 1 of this AD, perform structural inspections to detect corrosion or fatigue cracking of certain structural elements of the airplane, in accordance with the applicable service bulletins listed under ``Service Bulletin Number, Revision, and Date'' in Tables I and II of Lockheed Tristar L-1011 Service Bulletin 093-51- 041, Revision 1, dated March 3, 2000. Thereafter, repeat the inspections at intervals specified in the ``Repetitive Intervals'' column of Table 1 of this AD.

Table 1.--Compliance Times ---------------------------------------------------------------------------------------------------------------- Initial compliance time (whichever occurs later between the times in ``inspection threshold'' and ``grace Lockheed TriStar L-1011 service period'') Repetitive Terminating bulletin ---------------------------------------- intervals action Inspection threshold Grace period ---------------------------------------------------------------------------------------------------------------- (1) 093-53-269, Revision 1, Before the Within 6,450 At intervals not (None). dated October 28, 1997. accumulation of flight cycles or to exceed 6,450 8,000 total 5 years after the flight cycles or flight cycles or effective date of 5 years, 15,000 total this AD, whichever occurs flight hours, whichever occurs first. whichever occurs first. first. (2) 093-53-274, dated May 28, Within 14 months (None)............ At intervals not (None). 1997. after the to exceed 14 effective date of months. this AD. (3) 093-53-275, dated December Within 6,450 (None)............ (None)............ (None). 10, 1996. flight cycles or 5 years after the effective date of this AD, whichever occurs first. (4) 093-53-276, dated June 17, At the next (None)............ At intervals not (None). 1996. Corrosion to exceed the Prevention and next CPCP Control Program inspection. (CPCP) inspection after the effective date of this AD.

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(5) 093-57-085, Revision 1, Before the Within 1,800 At intervals not Modification in dated December 1, 1997. accumulation of flight cycles or to exceed 1,800 accordance with 26,000 total 3,300 flight flight cycles or Lockheed TriStar flight cycles or hours after the 3,300 flight L-1011 Service 48,000 total effective date of hours, whichever Bulletin 093-57- flight hours, this AD, occurs first. 085, Basic Issue, whichever occurs whichever occurs dated May 7, first. first. 1993; or Revision 1, dated December 1, 1997. (6) 093-57-208, Revision 1, Before the Within 6,450 At intervals not (None). dated October 28, 1997. accumulation of flight cycles or to exceed 6,450 18,000 total 5 years after the flight cycles or flight cycles. effective date of 5 years, this AD, whichever occurs whichever occurs first. first. (7) 093-52-210, dated July 19, Within 5,000 (None)............ (None)............ (None). 1991. flight hours or 18 months after the effective date of this AD, whichever occurs first. (8) 093-53-054, Revision 1, Within 6,450 (None)............ (None)............ (None). dated August 12, 1975. flight cycles or 5 years after the effective date of this AD, whichever occurs first. (9) 093-53-070, Revision 3, Before the Within 1,500 At intervals not Modification in dated September 19, 1989. accumulation of flight hours to exceed 3,000 accordance with 6,000 total after the flight hours. Lockheed TriStar flight hours. effective date of L-1011 Service this AD. Bulletin 093-53- 070, Basic Issue, dated September 26, 1974; Revision 1, dated January 23, 1975; Revision 2, dated July 7, 1975; or Revision 3, dated September 19, 1989. (10) 093-53- 085, Revision 3, Part I: Before the Part I: Within Part I: At Modification in dated December 15, 1989. accumulation of 1,600 flight intervals not to accordance with 20,000 flight cycles or 3,000 exceed 1,600 Lockheed TriStar cycles or 37,000 flight hours flight cycles or L-1011 Service total flight after the 3,000 flight Bulletin 093-53- hours, whichever effective date of hours, whichever 085, Basic Issue, occurs first. this AD, occurs first. dated September whichever occurs 29, 1975; first. Revision 1, dated September 3, 1976; or Revision 2, dated February 8, 1988. Part II: Before Part II: Within Part II: At Modification in the accumulation 5,000 flight intervals not to accordance with of 30,000 flight cycles or 9,200 exceed 5,000 Lockheed TriStar cycles or 55,000 flight hours flight cycles or L-1011 Service total flight after the 9,200 flight Bulletin 093-53- hours, whichever effective date of hours, whichever 085, Basic Issue, occurs first. this AD, occurs first. dated September whichever occurs 29, 1975; first. Revision 1, dated September 3, 1976; or Revision 2, dated February 8, 1988. (11) 093-53- 086, Revision 5, Before the Within 1,600 At intervals not Modification in dated April 12, 1990. accumulation of flight cycles or to exceed 1,600 accordance with 9,000 flight 3,000 flight flight cycles or Lockheed TriStar cycles or 10,000 hours after the 3,000 flight L-1011 Service flight hours, effective date of hours, whichever Bulletin 093-53- whichever occurs this AD, occurs first. 086, Basic Issue, first. whichever occurs dated September first. 26, 1975; Revision 1, dated November 12, 1975; Revision 2, dated December 12, 1976; Revision 3, dated July 19, 1977; Revision 4, dated July 8, 1985; or Revision 5, dated April 12, 1990. (12) 093-53-110, Revision 1, Before the Within 2,200 At intervals not Modification in dated May 7, 1993. accumulation of flight cycles or to exceed 2,200 accordance with 22,000 total 4,000 flight flight cycles or Lockheed TriStar flight cycles or hours after the 4,000 flight L-1011 Service 40,000 total effective date of hours, whichever Bulletin 093-53- flight hours, this AD, occurs first. 110, Basic Issue, whichever occurs whichever occurs dated August 19, first. first. 1991; or Revision 1, dated May 7, 1993.

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(13) Change Notification 093-53- Before the Within 800 flight At intervals not Inspection and 260, CN4, dated May 8, 1998. accumulation of cycles or 1,500 to exceed 800 modification in 8,000 total flight hours flight cycles or accordance with flight cycles or after the 1,500 flight Part 2.A. of 20,000 total effective date of hours, whichever Lockheed TriStar flight hours, this AD, occurs first. L-1011 Service whichever occurs whichever occurs Bulletin 093-53- first. first. 260, Basic Issue, dated May 15, 1991. (14) Change Notification 093-53- Within 12 months (None)............ At intervals not Modification in 266, CN1, dated July 10, 1992. after the to exceed 90 days. accordance with effective date of Lockheed TriStar this AD. L-1011 Service Bulletin 093-53- 266, Basic Issue, dated March 2, 1992. (15) Change Notification 093-57- Before the Within 1,600 At intervals not Modification in 058, R5-CN1, dated May 3, 1993. accumulation of flight cycles or to exceed 1,600 accordance with 20,000 total 3,000 flight flight cycles or Lockheed TriStar flight cycles or hours after the 3,000 flight L-1011 Service 37,000 total effective date of hours, whichever Bulletin 093-57- flight cycles or this AD, occurs first. 058, Basic Issue, 37,000 total whichever occurs dated September flight hours, first. 16, 1975; whichever occurs Revision 1, dated first. December 1, 1976; Revision 2, dated June 30, 1978; Revision 3, dated October 19, 1978; or Revision 4, dated July 6, 1981, Revision 5, dated June 9, 1983. (16) Change Notification 093-57- For airplanes Within 2,200 At intervals not Modification in 195, R3-CN1, dated August 22, having serial flight cycles to exceed 2,200 accordance with 1995. numbers (S/N) after the flight cycles. Lockheed TriStar 1002 through 1109 effective date of L-1011 Service inclusive: Before this AD. Bulletin 093-57- the accumulation 195, Revision 2, of 20,000 total dated July 27, flight cycles. 1990; or Revision 3, dated June 30, 1992. For airplanes having S/Ns 1110 through 1250 inclusive: Before the accumulation of 30,000 total flight cycles. (17) Change Notification 093-57- For Model L-1011- Within 6,450 At intervals not Repair or 213, CN1, dated February 20, 385-1, L-1011-385- flight cycles or to exceed 6,450 modification in 1996. 1-14, L-1011-385- 5 years after the flight cycles or accordance with 1-15: Before the effective date of 5 years, Lockheed TriStar accumulation of this AD, whichever occurs L-1011 Service 15,000 total whichever occurs first. Bulletin 093-57- flight cycles. first. 213, Basic Issue, dated December 9, 1994. For Model L-1011- 385-3: Before the accumulation of 10,000 total flight cycles. ----------------------------------------------------------------------------------------------------------------

Corrective Action

(b) If any cracking or corrosion is detected during any inspection required by paragraph (a) of this AD, prior to further flight, accomplish the actions specified in paragraph (b)(1), (b)(2), (b)(3), or (b)(4) of this AD. (1) Repair in accordance with the applicable service bulletin referenced in Table I or II of Lockheed Tristar L-1011 Service Bulletin 093-51-041, Revision 1, dated March 3, 2000. (2) Repair in accordance with the applicable section of the Lockheed L-1011 Structural Repair Manual. (3) Accomplish the terminating modification in accordance with the applicable service bulletin referenced in Table I or II of Lockheed Tristar L-1011 Service Bulletin 093-51-041, Revision 1, dated March 3, 2000. (4) Repair in accordance with a method approved by the Manager, Atlanta Aircraft Certification Office (ACO), FAA.

Terminating Action

(c) Within 5 years or 5,000 flight cycles after the effective date of this AD, whichever occurs first, install the terminating modification referenced in the applicable service bulletin listed in Table 1 of this AD, per the applicable service bulletin. Such installation constitutes terminating action for the applicable structural inspection required by paragraph (a) of this AD.

Alternative Methods of Compliance

(d) 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, Atlanta ACO, FAA. Operators shall submit their requests through an appropriate FAA Principal Maintenance Inspector, who may add comments and then send it to the Manager, Atlanta ACO.

Note 2: Information concerning the existence of approved alternative methods of compliance with this AD, if any, may be obtained from the Atlanta ACO.

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Special Flight Permits

(e) 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.

Incorporation by Reference

(f) You must use the applicable service bulletins listed in Table 2 of this AD to perform the actions that are required by this AD, unless the AD specifies otherwise. This incorporation by reference was approved by the Director of the Federal Register in accordance with 5 U.S.C. 552(a) and 1 CFR part 51. Copies may be obtained from Lockheed Martin Aircraft & Logistics Centers, 120 Orion Street, Greenville, South Carolina 29605. Copies may be inspected at the FAA, Transport Airplane Directorate, 1601 Lind Avenue, SW., Renton, Washington; or at the FAA, Atlanta Aircraft Certification Office, One Crown Center, 1895 Phoenix Boulevard, suite 450, Atlanta, Georgia; or at the National Archives and Records Administration (NARA). For information on the availability of this material at NARA, call (202) 741-6030, or go to http://www.archives.gov/federal_register/code_of_federal_regulations/ibr_locations.html.

Table 2.--Material Incorporated by Reference ---------------------------------------------------------------------------------------------------------------- Revision level shown on Service bulletin Effective pages page Date ---------------------------------------------------------------------------------------------------------------- (1) Lockheed TriStar L-1011 1-13.............. 1.......................... March 3, 2000. Service Bulletin 093-51-041, Revision 1, dated March 3, 2000. (2) Lockheed TriStar L-1011 1-17.............. Basic Issue................ May 7, 1993. Service Bulletin 093-57-085, Revision 1, dated May 7, 1993. (3) Lockheed TriStar L-1011 1-7, 9, 10........ 1.......................... December 1, 1997. Service Bulletin 093-57-085, 8, 11-7........... Basic Issue................ May 7, 1993. Revision 1, dated December 1, 1997. (4) Lockheed TriStar L-1011 1-15.............. Basic Issue................ September 26, 1974. Service Bulletin 093-53-070, Basic Issue, dated September 26, 1974. (5) Lockheed TriStar L-1011 1, 4-7, 13-17..... 1.......................... January 23, 1975. Service Bulletin 093-53-070, 2, 3, 8-12........ Basic Issue................ September 26, 1974. Revision 1, dated January 23, 1975. (6) Lockheed TriStar L-1011 1, 2, 7, 9-14..... 2.......................... July 7, 1975. Service Bulletin 093-53-070, 3, 8.............. Basic Issue................ September 26, 1974. Revision 2, dated July 7, 1975. 4-6, 15-17........ 1.......................... January 23, 1975. (7) Lockheed TriStar L-1011 1-6, 8-10......... 3.......................... September 19, 1989. Service Bulletin 093-53-070, 7................. Basic Issue................ September 26, 1974. Revision 3, dated September 19, 1989. (8) Lockheed TriStar L-1011 1-16.............. Basic Issue................ September 29, 1975. Service Bulletin 093-53-085, Basic Issue, dated September 29, 1975. (9) Lockheed TriStar L-1011 1-3, 6, 9-11, 15.. 1.......................... September 3, 1976. Service Bulletin 093-53-085, 4, 5, 7, 8, 12-14, Basic Issue................ September 29, 1975. Revision 1, dated September 3, 16. 1976. (10) Lockheed TriStar L-1011 1-23.............. 2.......................... February 8, 1988. Service Bulletin 093-53-085, Revision 2, dated February 8, 1988. (11) Lockheed TriStar L-1011 1-16.............. Basic Issue................ September 26, 1975. Service Bulletin 093-53-086, Basic Issue, dated September 26, 1975. (12) Lockheed TriStar L-1011 1, 2, 11, 15...... 1.......................... November 12, 1975. Service Bulletin 093-53-086, 3-10, 12-14, 16... Basic Issue................ September 26, 1975. Revision 1, dated November 12, 1975. (13) Lockheed TriStar L-1011 1, 2, 7, 15, 16... 2.......................... December 12, 1976. Service Bulletin 093-53-086, 3-6, 8-10, 12-14.. Basic Issue................ September 26, 1975. Revision 2, dated December 12, 11................ 1.......................... November 12, 1975. 1976. (14) Lockheed TriStar L-1011 1, 2, 4, 7, 10, 3.......................... July 19, 1977. Service Bulletin 093-53-086, 11, 15. Basic Issue................ September 26, 1975. Revision 3, dated July 19, 3, 5, 6, 8, 9, 12- 2.......................... December 12, 1976. 1977. 14. 16................ (15) Lockheed TriStar L-1011 1-4, 15, 16....... 4.......................... July 8, 1985. Service Bulletin 093-53-086, 5, 6, 8, 9, 12-14. Basic Issue................ Sepember 26, 1975. Revision 4, dated July 8, 1985. 7, 10, 11......... 3.......................... July 19, 1977. (16) Lockheed TriStar L-1011 1-9, 13........... 5.......................... April 12, 1990. Service Bulletin 093-53-086, 10-12............. Basic Issue................ September 26, 1975. Revision 5, dated April 12, 14................ 4.......................... July 8, 1985. 1990. (17) Lockheed TriStar L-1011 1-10.............. Basic Issue................ August 19, 1991. Service Bulletin 093-53-110, Basic Issue, dated August 19, 1991. (18) Lockheed TriStar L-1011 1-7, 9-12......... 1.......................... May 7, 1993. Service Bulletin 093-53-110, 8................. Basic Issue................ August 19, 1991. Revision 1, dated May 7, 1993. (19) Lockheed TriStar L-1011 1-26.............. Basic Issue................ May 15, 1991. Service Bulletin 093-53-260, Basic Issue, dated May 15, 1991. (20) Lockheed TriStar L-1011 1-17.............. Basic Issue................ March 2, 1992. Service Bulletin 093-53-266, Basic Issue, dated March 2, 1992. (21) Lockheed TriStar L-1011 1-19.............. Basic Issue................ September 16, 1975. Service Bulletin 093-57-058, Basic Issue, dated September 16, 1975. (22) Lockheed TriStar L-1011 1, 2, 4, 7, 8, 11, 1.......................... December 1, 1976. Service Bulletin 093-57-058, 15-19. Basic Issue................ September 16, 1975. Revision 1, dated December 1, 3, 5, 6, 9, 10, 12- 1976. 14. (23) Lockheed TriStar L-1011 1-4, 7, 8, 11, 15- 2.......................... June 30, 1978. Service Bulletin 093-57-058, 19. Basic Issue................ September 16, 1975. Revision 2, dated June 30, 5, 6, 9, 10, 12-14 1978. (24) Lockheed TriStar L-1011 1-3, 7, 8, 11, 15- 3.......................... October 19, 1978. Service Bulletin 093-57-058, 19. 2.......................... June 30, 1978. Revision 3, dated October 19, 4................. Basic Issue................ September 16, 1975. 1978. 5, 6, 9, 10, 12-14 (25) Lockheed TriStar L-1011 1-3, 19........... 4.......................... July 6, 1981. Service Bulletin 093-57-058, 4, 15............. 2.......................... June 30, 1978. Revision 4, dated July 6, 1981. 5, 6, 9, 10, 12-14 Basic Issue................ September 16, 1975. 7, 8, 11, 16-18... 3.......................... October 19, 1978.

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(26) Lockheed TriStar L-1011 1, 3, 4, 7........ 5.......................... June 9, 1983. Service Bulletin 093-57-058, 2................. 4.......................... July 6, 1981. Revision 5, dated June 9, 1983. 5, 6, 9, 10, 12-14 Basic Issue................ September 16, 1975. 8, 11, 16-19...... 3.......................... October 19, 1978. 15................ 2.......................... June 30, 1978. (27) Lockheed TriStar L-1011 1-51.............. 2.......................... July 27, 1990. Service Bulletin 093-53-070, Revision 2, dated July 27, 1990. (28) Lockheed TriStar L-1011 1-6, 23-28, 33, 3.......................... June 30, 1992. Service Bulletin 093-53-070, 34, 41, 42, 45-52. 2.......................... July 27, 1990. Revision 3, dated June 30, 7-22, 29-32, 35- 1992. 40, 43, 44. (29) Lockheed TriStar L-1011 1-19.............. Basic Issue................ December 9, 1994. Service Bulletin 093-53-070, Basic Issue, dated December 9, 1994. ----------------------------------------------------------------------------------------------------------------

Effective Date

(g) This amendment becomes effective on August 26, 2005.

Issued in Renton, Washington, on July 8, 2005. Ali Bahrami, Manager, Transport Airplane Directorate, Aircraft Certification Service. [FR Doc. 05-14089 Filed 7-21-05; 8:45 am] BILLING CODE 4910-13-P