Airworthiness Directive · Amendment 39-17361 · Nacelles/pylons
The Boeing Company Airplanes
(1) This AD applies to The Boeing Company Model 757-200, -200CB, -200PF, and -300 series airplanes; certificated in any category; equipped with Rolls-Royce RB211-535E engines.
(2) Installation of Supplemental Type Certificate (STC) ST01518SE (http://rgl.faa.gov/Regulatory_and_Guidance_Library/rgstc.nsf/0/48E13CDFBBC32CF4862576A4005D308B?OpenDocument&Highlight=st01518se) does not affect the ability to accomplish the actions required by this AD. For airplanes on which STC ST01518SE 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 757 airplanes equipped with Rolls- Royce RB211-535E engines. That AD currently requires repetitive inspections for signs of damage of the aft hinge fittings and attachment bolts of the thrust reversers, and related investigative and corrective actions if necessary. The existing AD also provides for an optional terminating modification for the repetitive inspections. For certain airplanes, this new AD adds a one-time inspection of the washers installed under the attachment bolts of the aft hinge fittings for correct installation sequence, and reinstallation if necessary. This new AD also adds an option for installing a redesigned aft hinge fitting with the trim already done, instead of trimming an existing or new hinge fitting, which is included in the existing optional terminating modification. This AD was prompted by reports of incorrectly installed washers under the attachment bolts of the aft hinge fittings of the thrust reversers. We are issuing this AD to prevent failure of the attachment bolts and consequent separation of a thrust reverser from the airplane during flight, which could result in structural damage to the airplane.
This paragraph restates the requirements of paragraph (f) of AD 2008-13-20, Amendment 39-15583 (73 FR 37786, July 2, 2008), with revised service information. At the time specified in paragraph 1.E. “Compliance,” of Boeing Special Attention Service Bulletin 757-54-0049 or 757-54-0050, both dated July 16, 2007, as applicable; except as provided by paragraph (h) of this AD: Do a detailed inspection for signs of damage of the aft hinge fittings and attachment bolts of the thrust reversers by doing all the actions, including all applicable related investigative and corrective actions, as specified in Part II of the Accomplishment Instructions of the applicable service bulletin specified in paragraph (g)(1), (g)(2), or (g)(3); or paragraph (g)(4), (g)(5), or (g)(6) of this AD; as applicable. Do all applicable related investigative and corrective actions at the time specified in paragraph 1.E., “Compliance,” of the applicable service bulletin identified in paragraph (g)(1) or (g)(4) of this AD. As of the effective date of this AD, only the service bulletin specified in paragraph (g)(3) or (g)(6) of this AD, as applicable, may be used to accomplish the actions required by this paragraph. If any damage is found and the service bulletin identified in paragraph (g)(1), (g)(2), (g)(3), (g)(4), (g)(5), or (g)(6) of this AD specifies to contact Boeing for appropriate action: Before further flight, repair using a method approved in accordance with the procedures specified in paragraph (n) of this AD.
(1) Boeing Special Attention Service Bulletin 757-54-0049, dated July 16, 2007.
(2) Boeing Special Attention Service Bulletin 757-54-0049, Revision 1, dated September 23, 2009.
(3) Boeing Special Attention Service Bulletin 757-54-0049, Revision 2, dated July 27, 2011.
(4) Boeing Service Bulletin 757-54-0050, dated July 16, 2007.
(5) Boeing Special Attention Service Bulletin 757-54-0050, Revision 1, dated October 7, 2009.
(6) Boeing Special Attention Service Bulletin 757-54-0050, Revision 2, dated July 27, 2011.
This paragraph restates the requirements of paragraph (g) of AD 2008-13-20, Amendment 39-15583 (73 FR 37786, July 2, 2008). Where Boeing Special Attention Service Bulletin 757-54-0049 or Boeing Service Bulletin 757-54-0050, both dated July 16, 2007; as applicable; specifies compliance times relative to the date on the service bulletin, this AD requires compliance within the specified compliance time after August 6, 2008 (the effective date of AD 2008-13-20).
This paragraph restates the actions specified in paragraph (h) of AD 2008-13-20, Amendment 39-15583 (73 FR 37786, July 2, 2008). Accomplishing the preventive modification identified in the service bulletin specified in paragraph (g)(1), (g)(2), or (g)(3); or paragraph (g)(4), (g)(5), or (g)(6) of this AD; as applicable; terminates the repetitive inspections required by paragraph (g) of this AD.
This paragraph restates the requirements of paragraph (i) of AD 2008-13-20, Amendment 39-15583 (73 FR 37786, July 2, 2008). Prior to or concurrently with accomplishing the actions identified in the service bulletin specified in paragraph (g)(1), (g)(2), or (g)(3) of this AD, as applicable, accomplish the replacement specified in Boeing Special Attention Service Bulletin 757-54-0015, Revision 3, dated September 19, 1996.
This paragraph restates the provisions of paragraph (j) of AD 2008-13-20, Amendment 39-15583 (73 FR 37786, July 2, 2008). This paragraph provides credit for the actions required by paragraph (j) of this AD, if those actions were performed before August 6, 2008 (the effective date AD 2008-13-20), using Boeing Service Bulletin 757-54-0015, dated February 16, 1989; Revision 1, dated December 20, 1990; or Revision 2, dated April 21, 1994 (which are not incorporated by reference in this AD).
For Group 1, Configuration 2 airplanes identified in Boeing Special Attention Service Bulletins 757-54-0049 and 757-54-0050, Revision 2, both dated July 27, 2011: Within 3,000 flight cycles after the effective date of this AD, do a detailed inspection of the washers installed under the attachment bolts of the aft hinge fittings for correct installation sequence, in accordance with Part IV of the Accomplishment Instructions of Boeing Special Attention Service Bulletin 757-54-0049 or 757-54-0050, both Revision 2, both dated July 27, 2011, as applicable. If an incorrect installation sequence is found, before further flight, remove and reinstall the washer stack up correctly, in accordance with Part III of the Accomplishment Instructions of Boeing Special Attention Service Bulletin 757-54-0049 or 757-54-0050, Revision 2, both dated July 27, 2011, as applicable.
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
