Airworthiness Directive · Amendment 39-15998 · Boeing Model 767 Airplanes
Boeing Model 767 Airplanes
Superseded. A later AD replaced this one: AD 2013-13-08. Comply with the one in force.
This AD applies to Model 767-200, -300, -300F, and -400ER series airplanes; certificated in any category; as identified in Boeing Service Bulletin 767-57A0100, Revision 1, dated June 19, 2008; and Boeing Service Bulletin 767-57A0102, Revision 1, dated November 27, 2007.
The FAA is adopting a new airworthiness directive (AD) for certain Boeing Model 767 airplanes. This AD 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 to determine the method of attachment of the vortex generators, and corrective action if necessary. This AD results from fuel system reviews conducted by the manufacturer. We are issuing this AD to prevent possible ignition sources in the auxiliary 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.
You are responsible for having the actions required by this AD performed within the compliance times specified, unless the actions have already been done.
For airplanes identified in Boeing Service Bulletin 767-57A0100, Revision 1, dated June 19, 2008: Within 60 months after the effective date of this AD, do the actions in paragraphs (f)(1) and (f)(2) of this AD in accordance with the Accomplishment Instructions of Boeing Service Bulletin 767-57A0100, Revision 1, dated June 19, 2008, as applicable.
(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.
For airplanes identified in Boeing Service Bulletin 767-57A0102, Revision 1, dated November 27, 2007: Within 60 months after the effective date of this AD, do the actions specified in paragraphs (g)(1), (g)(2), and (g)(3) of this AD, as applicable, in accordance with the Accomplishment Instructions of Boeing Service Bulletin 767-57A0102, Revision 1, dated November 27, 2007.
(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.
Note 1: 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.”
