Airworthiness Directive · Amendment 39-14032 · Boeing Model 757-200 and -200PF Series Airplanes
Boeing Model 757-200 and -200PF Series Airplanes
This AD applies to Boeing Model 757-200 and -200PF series airplanes, certificated in any category, identified in Boeing Alert Service Bulletin 757-57A0063, dated June 26, 2003.
The FAA is adopting a new airworthiness directive (AD) for certain Boeing Model 757-200 and -200PF series airplanes. This AD requires repetitive inspections and audible tap tests of the upper and lower skins of the trailing edge wedges on certain slats, and related investigative and corrective actions if necessary. This AD also provides an optional terminating action for the repetitive inspections and audible tap tests. This AD is prompted by a report of damage to the No. 4 leading edge slat. We are issuing this AD to prevent delamination of the leading edge slats, possible loss of pieces of the trailing edge wedge assembly during flight, reduction of the reduced maneuver and stall margins, and consequent reduced controllability 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.
Within 18 months after the effective date of this AD: Do a detailed inspection and an audible tap test of the upper and lower skins of the trailing edge wedges on slats No. 2 through No. 4 inclusive and No. 7 through No. 9 inclusive, for evidence of damage or cracking, in accordance with the Accomplishment Instructions of Boeing Alert Service Bulletin 757-57A0063, dated June 26, 2003. Repeat the detailed inspection and audible tap test thereafter at intervals not to exceed 18 months.
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.”
If any damage or cracking is found during any inspection or audible tap test required by paragraph (f) of this AD: Before further flight, do the related investigative action, if applicable, and replace the affected part with a new trailing edge wedge assembly or repair the affected part, in accordance with the Accomplishment Instructions of Boeing Alert Service Bulletin 757-57A0063, dated June 26, 2003. Accomplishing the replacement terminates the repetitive inspections and audible tap tests required by paragraph (f) of this AD for that wedge assembly only.
Previous accomplishment of all of the actions specified in the Accomplishment Instructions of Boeing Service Bulletin 757-57A0038, Revision 5, dated July 16, 1992; or Revision 6, dated November 10, 1994; in conjunction with the use of BMS 5-137 adhesive; is acceptable for compliance with the inspection requirements of paragraph (f) of this AD.
(i) As of the effective date of this AD, no trailing edge wedge assembly having a part number listed in the “Existing Part Number” column of the table in paragraph 2.C.3. of Boeing Alert Service Bulletin 757-57A0063, dated June 26, 2003, may be installed on any airplane unless it has been inspected, tested, and had any necessary corrective actions accomplished in accordance with this AD.
Replacing all trailing edge wedge assemblies with new, improved wedge assemblies in accordance with Part III of the Accomplishment Instructions of Boeing Alert Service Bulletin 757-57A0063, dated June 26, 2003, terminates the requirements of paragraph (f) of this AD.
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
