AD 2009-21-10 Airworthiness Directives; AVOX Systems and B/E Aerospace Oxygen Cylinder Assemblies, as Installed on Various Transport Airplanes

Models named: Airbus A300 B4-620, B4-622, B4-605R, F4-605R. Read the applicability below — it usually turns on serial or part numbers too.

This AD applies to the oxygen cylinder assemblies, approved under United States Department of Transportation Regulations for Type 3HT cylinders, identified in Table 1 of this AD. These oxygen cylinder assemblies may be installed on various transport airplanes, certificated in any category, identified in but not limited to the airplanes included in Table 2 of this AD. Table 1—Affected Oxygen Cylinder Assembly Part Numbers Manufacturer Part Nos. AVOX Systems 6350A34 series*   800112-03   800112-10   800112-13   801293-03   801307-00   801307-01   801307-02   801307-03   801307-07   801307-09   801307-23   801307-24   801365-04   801365-14   801375-00   801977-05   8915 series* B/E Aerospace 176018-115   176112-115   176177-115   176181-115   176529-97 (*For example, 6350A34-X-X or 8915XX-XX, where “X” denotes a part number digit.) Table 2—Affected Airplanes Manufacturer Model Airbus A300 B4-620, B4-622, B4-605R, and F4-605R airplanes.   A310-203, -204, -221, -222, -304, and -324 airplanes.   A318-111 and -112 airplanes.   A319-111, -112, -113, -114, -115, -131, -132, and -133 airplanes.   A320-111, -211, -212, -214, -231, -232, and -233 airplanes.   A321-111, -112, -131, -211, and -231 airplanes.   A330-301, -321, and -322 airplanes.   A340-211 and -212 airplanes.   A340-311 and -312 airplanes. The Boeing Company 707-100 long body, -200, -100B long body, and -100B short body series airplanes; and 707-300, -300B, -300C, and -400 series airplanes.   727, 727C, 727-100, 727-100C, 727-200, and 727-200F series airplanes.   737-100, -200, -200C, -300, -400, -500, -600, -700, -700C, -800, -900, and -900ER series airplanes.   747-100, 747-100B, 747-100B SUD, 747-200B, 747-200C, 747-200F, 747-300, 747-400, 747-400D, 747-400F, 747SR, and 747SP series airplanes.   757-200, -200PF, -200CB, and -300 series airplanes.   767-200, -300, -300F, and -400ER series airplanes.   777-200, -200LR, -300, -300ER, and 777F series airplanes. Gulfstream Aerospace Corporation G-IV airplanes. McDonnell Douglas Corporation DC-8-11, DC-8-12, DC-8-21, DC-8-31, DC-8-32, DC-8-33, DC-8-41, DC-8-42, DC-8-43, DC-8-51, DC-8-52, DC-8-53, and DC-8-55 airplanes.   DC-9-11, DC-9-12, DC-9-13, DC-9-14, DC-9-15, DC-9-15F, DC-9-21, DC-9-31, DC-9-32, DC-9-32 (VC-9C), DC-9-32F, DC-9-32F (C-9A, C-9B), DC-9-33F, DC-9-34, DC-9-34F, DC-9-41, DC-9-51, DC-9-81 (MD-81), DC-9-82 (MD-82), DC-9-83 (MD-83), and DC-9-87 (MD-87) airplanes.   DC-10-10, DC-10-10F, DC-10-15, DC-10-30, DC-10-30F (KC-10A and KDC-10), and DC-10-40 airplanes.   MD-10-10F and MD-10-30F airplanes.   MD-11 and MD-11F airplanes.   MD-88 airplanes.   MD-90-30 airplanes. Short Brothers PLC SD3-30, SD3-SHERPA, and SD3-60 SHERPA airplanes.

You are responsible for having the actions required by this AD performed within the compliance times specified, unless the actions have already been done. Restatement of Requirements of AD 2009-21-10, With Revised Serial Numbers Inspection (g) Within 90 days after December 17, 2009 (the effective date of AD 2009-21-10), inspect to determine the serial number of the oxygen cylinder assemblies installed in the airplane. The serial number is stamped into the steel cylinder near the neck. A review of airplane records is acceptable in lieu of this inspection if the serial numbers of the oxygen cylinder assemblies can be conclusively determined from that review. For any oxygen cylinder assembly that has a serial number identified in Table 3 of this AD: Remove it from the airplane before further flight. Table 3—Affected Oxygen Cylinder Assembly Serial Numbers Cylinder manufacturer Affected Serial Nos. AVOX Systems ST82307 through ST82309 inclusive.   ST82335 through ST82378 inclusive.   ST82385 through ST82506 inclusive, except for S/N ST82498, which ruptured.   ST82550 through ST82606 inclusive.   ST82617 through ST82626 inclusive.   ST83896 through ST83905 inclusive.   ST84209 through ST84218 inclusive.   ST84224 through ST84236 inclusive.   ST86138.   ST86143.   ST86145.   ST86150.   ST86169.   ST86172.   ST86177.   ST86299 through ST86307 inclusive. B/E Aerospace K495120 through K495121 inclusive.   K629573 through K629577 inclusive.   K674451 through K674455 inclusive. Parts Installation (h) As of December 17, 2009, no person may install, on any airplane, a United States Department of Transportation Type 3HT oxygen cylinder assembly that has a part number identified in Table 1 of this AD and a serial number identified in Table 3 of this AD. Alternative Methods of Compliance (AMOCs) (i)(1) The Manager, Seattle Aircraft Certification Office, FAA, has the authority to approve AMOCs for this AD, if requested using the procedures found in 14 CFR 39.19. Send information to Attn: Nicholas Wilson, Aerospace Engineer, Cabin Safety and Environmental Systems Branch, ANM-150S, Seattle Aircraft Certification Office, FAA, 1601 Lind Avenue, SW., Renton, Washington 98057-3356; telephone (425) 917-6476; fax (425) 917-6590. Or, e-mail information to 9-ANM-Seattle-ACO-AMOC-Requests@faa.gov. (2) To request a different method of compliance or a different compliance time for this AD, follow the procedures in 14 CFR 39.19. Before using any approved AMOC on any airplane to which the AMOC applies, notify your principal maintenance inspector (PMI) or principal avionics inspector (PAI), as appropriate, or lacking a principal inspector, your local Flight Standards District Office. The AMOC approval letter must specifically refer to this AD. Material Incorporated by Reference (j) None. Issued in Renton, Washington, on January 8, 2010. Stephen P. Boyd, Acting Manager, Transport Airplane Directorate, Aircraft Certification Service. [FR Doc. 2010-937 Filed 1-19-10; 8:45 am] BILLING CODE 4910-13-P

This AD was prompted by the reported rupture of a high-pressure gaseous oxygen cylinder, which had insufficient strength characteristics due to improper heat treatment. The Federal Aviation Administration is issuing this AD to prevent an oxygen cylinder from rupturing, which, depending on the location, could result in structural damage and rapid decompression of the airplane, damage to adjacent essential flight equipment, deprivation of the necessary oxygen supply for the flightcrew, and injury to cabin occupants or maintenance or other support personnel.