Airworthiness Directive · Amendment 39-14798 · Boeing Model 757-200, -200CB, and -300 Series Airplanes
Boeing Model 757-200, -200CB, and -300 Series Airplanes
This AD applies to Boeing Model 757-200 and -200CB series airplanes, certificated in any category, as identified in Boeing Special Attention Service Bulletin 757-52-0085, dated March 24, 2005; and Boeing Model 757-300 series airplanes, certificated in any category, as identified in Boeing Special Attention Service Bulletin 757-52-0086, dated March 24, 2005.
The FAA is adopting a new airworthiness directive (AD) for certain Boeing Model 757-200, -200CB, and -300 series airplanes. This AD requires repetitive detailed inspections for proper functioning of the girt bar leaf springs for the escape slides to ensure the leaf springs retain the sliders and the required 0.37-inch minimum engagement between the sliders and floor fittings is achieved at passenger doors 1, 2, and 4, and corrective actions if necessary. This AD results from a report that the escape slides failed to deploy correctly during an operator's tests of the escape slides. We are issuing this AD to prevent escape slides from disengaging from the airplane during deployment or in use, which could result in injuries to passengers or flightcrew.
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 24 months after the effective date of this AD: Do a detailed inspection for inadequate spring retention force and inadequate girt bar slider dimensions of the girt bar leaf springs for the escape slides at passenger doors 1, 2, and 4; and do any applicable corrective actions before further flight. Do all the actions in accordance with the Accomplishment Instructions of the applicable service bulletin in paragraph (f)(1) or (f)(2) of this AD, except as provided by paragraph (g) of this AD. Where the airplane maintenance manuals (AMMs) and component maintenance manuals (CMMs) referenced by the applicable service bulletin include procedures that allow bending the girt bar retention spring, this AD does not allow that procedure. Repeat the inspection thereafter at intervals not to exceed 24 months, or after each maintenance task where removal of and installation of the girt bar is necessary, whichever occurs earlier.
(1) For Boeing Model 757-200 and -200CB series airplanes: Boeing Special Attention Service Bulletin 757-52-0085, dated March 24, 2005.
(2) For Boeing Model 757-300 series airplanes: Boeing Special Attention Service Bulletin 757-52-0086, dated March 24, 2005.
Where the applicable service bulletin specified in paragraph (f)(1) or (f)(2) of this AD specifies that actions may be accomplished in accordance with an “approved equivalent procedure”: The corrective actions must be accomplished in accordance with the applicable chapter/section of the Boeing 757 AMM or Boeing 757 CMM specified in the applicable service bulletin. Where the AMMs and CMMs include procedures that allow bending the girt bar retention spring, this AD does not allow that procedure.
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
