Airworthiness Directive · Amendment 39-11767 · Boeing Model 767-200 and -300 Series Airplanes
Boeing Model 767-200 and -300 Series Airplanes
Superseded. A later AD replaced this one: AD 2000-11-19 R1. Comply with the one in force.
Model 767-200 and -300 series airplanes, as listed in Boeing Alert Service Bulletin 767-25A0260, dated July 9, 1998; certificated in any category; except Model 767 series airplanes that have undergone conversion to freighter configurations, and on which the off-wing escape system has been removed or deactivated.
Note 1: This AD applies to each airplane identified in the preceding applicability provision, regardless of whether it has been otherwise modified, altered, or repaired in the area subject to the requirements of this AD. For airplanes that have been modified, altered, or repaired so that the performance of the requirements of this AD is affected, the owner/operator must request approval for an alternative method of compliance in accordance with paragraph (c) of this AD. The request should include an assessment of the effect of the modification, alteration, or repair on the unsafe condition addressed by this AD; and, if the unsafe condition has not been eliminated, the request should include specific proposed actions to address it.
This amendment adopts a new airworthiness directive (AD), applicable to certain Boeing Model 767-200 and -300 series airplanes, that requires repetitive inspections to detect wear or damage of the door latches and disconnect housings in the off-wing escape slide compartments, and replacement of any discrepant component with a new component. This amendment is prompted by reports of worn and damaged door latches and disconnect housings in the off-wing escape slide compartments. The actions specified by this AD are intended to ensure deployment of an escape slide during an emergency evacuation. Non- deployment of an escape slide during an emergency could slow down the evacuation of the airplane and result in injury to passengers or flightcrew. The actions specified by this AD are also intended to detect damaged disconnect housings in the off-wing escape slide compartments, which could result in unexpected deployment of an escape slide during maintenance, and consequent injury to maintenance personnel.
To prevent non-deployment of an escape slide during an emergency evacuation, which could slow down the evacuation of the airplane and result in injury to passengers or flightcrew; and to detect damaged disconnect housings in the off-wing escape slide compartments, which could result in unexpected deployment of an escape slide during maintenance, and consequent injury to maintenance personnel; accomplish the following:
(a) Prior to the accumulation of 6,000 total flight hours, or within 18 months after the effective date of this AD, whichever occurs later, perform a detailed visual inspection to detect wear or damage of the door latches and disconnect housings in the off-wing escape slide compartments, in accordance with Boeing Alert Service Bulletin 767-25A0260, dated July 9, 1998. Repeat the inspection thereafter at intervals not to exceed 6,000 flight hours or 18 months, whichever occurs later.
Note 2: Boeing Alert Service Bulletin 767-25A0260, dated July 9, 1998, allows repetitive inspections of a door latch having part number H2052-11 or H2052-115, provided that the latch is not worn or damaged. However, replacement of any latch having part number H2052-11 or H2052-115 with a new latch having part number H2052-13 is described as part of a modification of the escape slide compartment door latching mechanism that is specified in Boeing Alert Service Bulletin 767-25A0174, dated August 15, 1991. Accomplishment of that modification is required by AD 92-16-17, amendment 39-8327, and AD 95-08-11, amendment 39-9200. Therefore, operators should note that any latch having part number H2052-11 or H2052-115 found during an inspection required by paragraph (a) of this AD is already required to be replaced in accordance with AD 92-16-17 or AD 95-08-11, as applicable.
Note 3: Inspections and corrective actions accomplished prior to the effective date of this AD in accordance with the Validation Copy of Boeing Alert Service Bulletin 767-25A0260, dated April 28, 1998, are considered acceptable for compliance with the applicable action specified in this AD.
(b) If any part is found to be worn or damaged during the inspections performed in accordance with paragraph (a) of this AD, prior to further flight, replace the worn or damaged part with a new part, and perform an adjustment of the off-wing escape slide system, in accordance with Boeing Alert Service Bulletin 767-25A0260, dated July 9, 1998.
