FAA · Airworthiness Directive
Airworthiness Directives; The Boeing Company Airplanes
Abstract
The FAA proposes to supersede Airworthiness Directive (AD) 2016-14-04, which applies to certain The Boeing Company Model 787-8 airplanes. AD 2016-14-04 requires replacing the potable waterline couplings above the forward and aft electronics equipment (EE) bays with new, improved couplings. AD 2016-14-04 also requires sealing the main cabin floor areas above the aft EE bay, installing drip shields and foam blocks, and rerouting the wire bundles near the drip shields above the equipment in the aft EE bay. Since the FAA issued AD 2016-14- 04, it was determined that sealant, moisture barrier tape and tape dam requirements above the EE bays may not have been installed on production airplanes. This proposed AD continues to require the actions in AD 2016-14-04 and would require an inspection of seat tracks above the EE bays for missing, damaged, or deteriorated sealant, moisture barrier tape, or tape dams, as applicable, and applicable on-condition actions. This proposed AD also adds airplanes to the applicability. The FAA is proposing this AD to address the unsafe condition on these products.
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: 89 FR 104900.
[Federal Register Volume 89, Number 247 (Thursday, December 26, 2024)] [Proposed Rules] [Pages 104900-104904] From the Federal Register Online via the Government Publishing Office [www.gpo.gov] [FR Doc No: 2024-30669]
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DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2024-2665; Project Identifier AD-2024-00203-T] RIN 2120-AA64
Airworthiness Directives; The Boeing Company Airplanes
AGENCY: Federal Aviation Administration (FAA), DOT.
ACTION: Notice of proposed rulemaking (NPRM).
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SUMMARY: The FAA proposes to supersede Airworthiness Directive (AD) 2016-14-04, which applies to certain The Boeing Company Model 787-8 airplanes. AD 2016-14-04 requires replacing the potable waterline couplings above the forward and aft electronics equipment (EE) bays with new, improved couplings. AD 2016-14-04 also requires sealing the main cabin floor areas above the aft EE bay, installing drip shields and foam blocks, and rerouting the wire bundles near the drip shields above the equipment in the aft EE bay. Since the FAA issued AD 2016-14- 04, it was determined that sealant, moisture barrier tape and tape dam requirements above the EE bays may not have been installed on production airplanes. This proposed AD continues to require the actions in AD 2016-14-04 and would require an inspection of seat tracks above the EE bays for missing, damaged, or deteriorated sealant, moisture barrier tape, or tape dams, as applicable, and applicable on-condition actions. This proposed AD also adds airplanes to the applicability. The FAA is proposing this AD to address the unsafe condition on these products.
DATES: The FAA must receive comments on this proposed AD by February 10, 2025.
ADDRESSES: You may send comments, using the procedures found in 14 CFR 11.43 and 11.45, by any of the following methods: Federal eRulemaking Portal: Go to regulations.gov. Follow the instructions for submitting comments. Fax: 202-493-2251. Mail: U.S. Department of Transportation, Docket Operations, M-30, West Building Ground Floor, Room W12-140, 1200 New Jersey Avenue SE, Washington, DC 20590. Hand Delivery: Deliver to Mail address above between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays. AD Docket: You may examine the AD docket at regulations.gov under Docket No. FAA-2024-2665; or in person at Docket Operations between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays. The AD docket contains this NPRM, any comments received, and other information. The street address for Docket Operations is listed above. Material Incorporated by Reference: For the material identified in this proposed AD, contact Boeing Commercial Airplanes, Attention: Contractual & Data Services (C&DS),
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2600 Westminster Blvd., MC 110-SK57, Seal Beach, CA 90740-5600; telephone 562-797-1717; website myboeingfleet.com. You may view this material at the FAA, Airworthiness Products Section, Operational Safety Branch, 2200 South 216th St., Des Moines, WA. For information on the availability of this material at the FAA, call 206-231-3195. It is also available at regulations.gov under Docket No. FAA-2024-2665.
FOR FURTHER INFORMATION CONTACT: Courtney Tuck, Aviation Safety Engineer, FAA, 2200 South 216th St., Des Moines, WA 98198; phone: 206- 231-3986; email: [email protected].