Airworthiness Directive · Amendment 39-17496 · Wings
The Boeing Company Airplanes
(1) This AD applies to The Boeing Company Model 767-200, -300, -300F, and -400ER series airplanes; certificated in any category; as identified in Boeing Service Bulletin 767-57A0100, Revision 3, dated July 28, 2011; and Boeing Service Bulletin 767-57A0102, Revision 4, dated September 20, 2011.
(2) Installation of Supplemental Type Certificate (STC) ST01920SE (http://rgl.faa.gov/Regulatory_and_Guidance_Library/rgstc.nsf/0/59027F43B9A7486E86257B1D006591EE?OpenDocument&Highlight=st01920se) does not affect the ability to accomplish the actions required by this AD. Therefore, for airplanes on which STC ST01920SE is installed, a “change in product” alternative method of compliance (AMOC) approval request is not necessary to comply with the requirements of 14 CFR 39.17.
We are superseding an existing airworthiness directive (AD) for certain The Boeing Company Model 767 airplanes. That AD currently requires sealing certain fasteners and stiffeners in the fuel tank, changing certain wire bundle clamp configurations on the fuel tank walls, inspecting certain fasteners in the fuel tanks and determining the method of attachment of the vortex generators; and performing corrective actions if necessary. This new AD adds a general visual inspection for the presence of a polytetrafluoroethylene (TFE) sleeve at the clamp location on the rear spar, and installation of a TFE sleeve if necessary. This new AD also adds airplanes to the applicability. This AD was prompted by fuel system reviews conducted by the manufacturer, and the identification of another possible ignition source location. We are issuing this AD to prevent possible ignition sources in the auxiliary (center) fuel tank, main fuel tanks, and surge tanks caused by a wiring short or lightning strike, which could result in fuel tank explosions and consequent loss of the airplane.
This paragraph restates the requirements of paragraph (f) of AD 2009-18-02, Amendment 39-15998 (74 FR 43621, August 27, 2009), with revised service information. For airplanes identified in Boeing Service Bulletin 767-57A0100, Revision 01, dated June 19, 2008: Within 60 months after October 1, 2009 (the effective date of AD 2009-18-02), do the actions in paragraph (g)(1) or (g)(2) of this AD, as applicable, in accordance with the Accomplishment Instructions of Boeing Service Bulletin 767-57A0100, Revision 01, dated June 19, 2008; or Boeing Service Bulletin 767-57A0100, Revision 3, dated July 28, 2011. As of the effective date of this AD, only Boeing Service Bulletin 767-57A0100, Revision 3, dated July 28, 2011, may be used to accomplish the requirements of this paragraph.
(1) For Groups 1 and 2 airplanes: Seal the ends of the fasteners on the brackets that hold the vortex generators, and seal the ends of the fasteners on certain stiffeners on the rear spar, as applicable.
(2) For Group 3 airplanes: Do a detailed inspection to determine the method of attachment of the vortex generators and, before further flight, do all applicable specified corrective actions.
This paragraph restates the requirements of paragraph (g) of AD 2009-18-02, Amendment 39-15998 (74 FR 43621, August 27, 2009), with revised service information. For airplanes identified in Boeing Service Bulletin 767-57A0102, Revision 01, dated November 27, 2007: Within 60 months after October 1, 2009 (the effective date of AD 2009-18-02), do the actions specified in paragraphs (h)(1), (h)(2), and (h)(3) of this AD, as applicable, in accordance with the Accomplishment Instructions of Boeing Service Bulletin 767-57A0102, Revision 01, dated November 27, 2007; or Boeing Service Bulletin 767-57A0102, Revision 4, dated September 20, 2011. As of the effective date of this AD, only Boeing Service Bulletin 767-57A0102, Revision 4, dated September 20, 2011, may be used to accomplish the actions required by this paragraph.
(1) Change the wire bundle clamp configurations at specified locations on the fuel tank walls.
(2) Seal the fasteners and certain stiffeners at specified locations in the fuel tank.
(3) Do a detailed inspection of the sealant of the fasteners in the auxiliary tank center bay and rib 28 of the left and right main fuel tanks. Seal any unsealed fasteners before further flight.
This paragraph restates the information specified in Note 1 of AD 2009-18-02, Amendment 39-15998 (74 FR 43621, August 27, 2009). For the purposes of this AD, a detailed inspection is: An intensive examination of a specific item, installation, or assembly to detect damage, failure, or irregularity. Available lighting is normally supplemented with a direct source of good lighting at an intensity deemed appropriate. Inspection aids such as mirror, magnifying lenses, etc., may be necessary. Surface cleaning and elaborate procedures may be required.
For airplanes identified in Boeing Service Bulletin 767-57A0102, Revision 4, dated September 20, 2011, but not identified in paragraph (h) of this AD: Do the actions required by paragraph (h) of this AD within 60 months after the effective date of this AD.
For airplanes identified as Groups 1 and 2 in Boeing Service Bulletin 767-57A0102, Revision 4, dated September 20, 2011: Within 60 months after the effective date of this AD, do a general visual inspection of the clamp location on the rear spar to determine whether a polytetrafluoroethylene (TFE) sleeve is installed between the clamp and the plastic convoluted tube, in accordance with Work Package 13 of the Accomplishment Instructions of Boeing Service Bulletin 767-57A0102, Revision 4, dated September 20, 2011.
(1) If a TFE sleeve is not installed between the clamp and the plastic convoluted tubing, before further flight, install a TFE sleeve, in accordance with the Accomplishment Instructions of Boeing Service Bulletin 767-57A0102, Revision 4, dated September 20, 2011.
(2) If a TFE sleeve is installed between the clamp and the plastic convoluted tubing, no more work is required by this paragraph.
The aircraft, engines and makers this AD names, by the model designations in its text. A model listed here may still be outside the AD's serial ranges.
Aircraft
