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FAA orders · airworthiness directive · current

2011-21-03: Hydraulic and Electrical power

FAA order 2011-21-03 is an airworthiness directive in force since November 16, 2011. The FAA's subject line: Hydraulic and Electrical power. It names Boeing 777: about 359 aircraft on the U.S. register today, though an order usually covers particular versions or serial numbers rather than every one. System: electrical power.

What it applies to as the FAA lists it

Kind of product
Aircraft
Makes
The Boeing Company
Models
777-200 Series, 777-200LR Series, 777-300 Series, 777-300ER Series
On this site
Boeing 777 359 registered

Dates and paperwork

In force since
November 16, 2011
Published
October 12, 2011 (signed September 27, 2011)
Docket
FAA-2010-1312
Status
Current
The FAA's document
Read the order on the FAA's site

The FAA's summary their words, unchanged

We are adopting a new airworthiness directive (AD) for the products listed above. This AD requires installing foreign object debris (FOD) rubber shields over the primary and secondary external power connectors for certain airplanes, and wrapping silicone tape around the hydraulic tube for certain other airplanes. This AD was prompted by a report of a fire in the main equipment center due to failure of an external power connector, which \n\n((Page 63164)) \n\ncaused high-temperature arcing and subsequent splatter of molten copper on an adjacent hydraulic tube, creating a hole in the tube and spraying hydraulic fluid into the power connector, resulting in a fire. In addition there were several reports of overheating or arcing of external power connectors, and one report of a fire due to arcing caused by FOD. We are issuing this AD to prevent FOD from entering the primary and secondary external power connectors, which could result in overheating or arcing and consequent fire in the main equipment center.

The order itself the regulatory text, as published

Show the full text (6,420 characters)
Adoption of the Amendment \n\n\n\tAccordingly, under the authority delegated to me by the Administrator, the FAA amends 14 CFR part 39 as follows: \n\nPART 39--AIRWORTHINESS DIRECTIVES \n\n0 1. The authority citation for part 39 continues to read as follows: \n\n\n\tAuthority: 49 U.S.C. 106(g), 40113, 44701. \n\n\n\nSec. 39.13 (Amended) \n\n0 2. The FAA amends Sec. 39.13 by adding the following new airworthiness directive (AD): \n\n2011-21-03 The Boeing Company: Amendment 39-16826; Docket No. FAA- 2010-1312; Directorate Identifier 2010-NM-220-AD. \n\nEffective Date \n\n\n\t(a) This AD is effective November 16, 2011. \n\nAffected ADs \n\n\n\t(b) None. \n\nApplicability \n\n\n\t(c) This AD applies to The Boeing Company Model 777-200, -200LR, -300, and -300ER series airplanes; certificated in any category; as identified in Boeing Service Bulletin 777-24-0102, Revision 1, dated June 17, 2010; and Boeing Special Attention Service Bulletin 777-29- 0032, dated August 9, 2007. \n\nSubject(d) Joint Aircraft System Component (JASC)/Air Transport Association (ATA) of America Codes 29: Hydraulic power; and 24: Electrical power. \n\nUnsafe Condition \n\n\n\t(e) This AD was prompted by a report of a fire in the main equipment center due to failure of an external power connector, which caused high-temperature arcing and subsequent splatter of molten copper on an adjacent hydraulic tube, creating a hole in the tube and spraying hydraulic fluid into the power connector, resulting in a fire. In addition there were several reports of overheating or arcing of external power connectors, and one report of a fire due to arcing caused by foreign object debris (FOD). We are issuing this AD to prevent FOD from entering the primary and secondary external power connectors, which could result in overheating or arcing and consequent fire in the main equipment center. \n\nCompliance \n\n\n\t(f) Comply with this AD within the compliance times specified, unless already done. \n\nModification(g) Within 36 months after the effective date of this AD, do the actions required by paragraphs (g)(1) and (g)(2) of this AD. \n\t(1) For airplanes identified in Boeing Service Bulletin 777-24- 0102, Revision 1, dated June 17, 2010: Install FOD rubber shields over the primary and secondary external power connectors, in accordance with the Accomplishment Instructions of Boeing Service Bulletin 777-24-0102, Revision 1, dated June 17, 2010. \n\t(2) For airplanes identified in Boeing Special Attention Service Bulletin 777-29-0032, dated August 9, 2007: Wrap silicone tape around the hydraulic tube, in accordance with the Accomplishment Instructions of Boeing Special Attention Service Bulletin 777-29- 0032, dated August 9, 2007. \n\nException to Service Information \n\n\n\t(h) Figure 1 of the Accomplishment Instructions of Boeing Special Attention Service Bulletin 777-29-0032, dated August 9, 2007, does not identify the units of the dimensions of the silicone tape installed on the hydraulic tube; those dimensions are identified in inches. \n\nCredit for Actions Accomplished in Accordance With Previous Service Information \n\n\n\t(i) Actions done before the effective date of this AD in accordance with Boeing Service Bulletin 777-24-0102, dated July 12, 2007, are acceptable for compliance with the corresponding requirements of paragraph (g)(1) of this AD. \n\nAlternative Methods of Compliance (AMOCs) \n\n\n\t(j)(1) The Manager, Seattle Aircraft Certification Office (ACO), FAA, has the authority to approve AMOCs for this AD, if requested using the procedures found in 14 CFR 39.19. In accordance with 14 CFR 39.19, send your request to your principal inspector or local Flight Standards District Office, as appropriate. If sending information directly to the manager of the ACO, send it to the attention of the person identified in the Related Information section of this AD. Information may be e-mailed to: [email protected]. \n\t(2) Before using any approvedAMOC, notify your Principal Maintenance Inspector or Principal Avionics Inspector, as appropriate, or lacking a principal inspector, your local Flight Standards District Office. \n\nRelated Information \n\n\n\t(k) For more information about this AD, contact Georgios Roussos, Aerospace Engineer, Systems and Equipment Branch, ANM-130S, FAA, Seattle Aircraft Certification Office, 1601 Lind Avenue, SW., Renton, Washington 98057-3356; phone: (425) 917-6482; fax: (425) 917-6590; e-mail: [email protected]. \n\t(l) For service information identified in this AD, contact Boeing Commercial \n\n((Page 63167)) \n\nAirplanes, Attention: Data & Services Management, P.O. Box 3707, MC 2H-65, Seattle, Washington 98124-2207; telephone 206-544-5000, extension 1; fax 206-766-5680; e-mail [email protected]; Internet https://www.myboeingfleet.com. You may review copies of the referenced service information at the FAA, Transport Airplane Directorate, 1601 Lind Avenue, SW., Renton, Washington. For information on the availability of this material at the FAA, call 425-227-1221. \n\nMaterial Incorporated by Reference \n\n\n\t(m) You must use Boeing Service Bulletin 777-24-0102, Revision 1, dated June 17, 2010; or Boeing Special Attention Service Bulletin 777-29-0032, dated August 9, 2007; as applicable; to do the actions required by this AD, unless the AD specifies otherwise. \n\t(1) The Director of the Federal Register approved the incorporation by reference of the service information contained under 5 U.S.C. 552(a) and 1 CFR part 51. \n\t(2) For service information identified in this AD, contact Boeing Commercial Airplanes, Attention: Data & Services Management, P.O. Box 3707, MC 2H-65, Seattle, WA 98124-2207; telephone 206-544- 5000, extension 1; fax 206-766-5680; e-mail [email protected]; Internet https://www.myboeingfleet.com. \n\t(3) You may review copies of the service information at the FAA, Transport Airplane Directorate, 1601 Lind Avenue, SW., Renton, Washington. For information on the availability of this material at the FAA, call 425-227-1221. \n\t(4) You may also review copies of the service information that is incorporated by reference at the National Archives and Records Administration (NARA). For information on the availability of this material at an NARA facility, call 202-741-6030, or go to http://www.archives.gov/federal_register/code_of_federal_regulations/ibr_locations.html.

Related safety bulletins advice on the same designs, not orders

2022-05-17AIR-22-09R1 · AUTOPILOT FLIGHT DIRECTOR SYSTEM: ALT HOLD Engaged on Takeoff on Boeing Model 777/787 common fleets.
2022-04-12AIR-22-09 · AUTOPILOT FLIGHT DIRECTOR SYSTEM: ALT HOLD Engaged on Takeoff on Boeing Model 777/787 common fleets.
2020-11-16AIR-20-19 · Flight Management Computing Software System
2020-06-11NM-20-11 · Autopilot System
2020-04-16NM-20-07 · Navigation - Glideslope System

Source: FAA Dynamic Regulatory System, airworthiness directives. The FAA's document is the authority; the register counts are this site's, from the FAA register of November 6, 2026. Connections as data: /graph/directive/2011-21-03.json · aircraft systems.