Airworthiness Directive · Amendment 39-11662 · Boeing Model 777 Series Airplanes
Boeing Model 777 Series Airplanes
Model 777 series airplanes, line numbers 2 through 103 inclusive, 105 through 119 inclusive, 121 through 161 inclusive, 163 through 177 inclusive, and 179 through 186 inclusive; certificated in any category.
Note 1: This AD applies to each airplane identified in the preceding applicability provision, regardless of whether it has been 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 (b) 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 777 series airplanes, that requires replacement of the clevis ends on the tie rods for the center stowage bin supports with improved clevis ends. This amendment is prompted by a report that, under ultimate load conditions, the aluminum clevis ends on the tie rods for the center stowage bin supports can break. The actions specified by this AD are intended to prevent broken tie rods, which could result in the center stowage bins dropping onto the passenger seats below, causing possible injury to the occupants.
To prevent broken tie rods, which could result in the center stowage bins dropping onto the passenger seats below, causing possible injury to the occupants, accomplish the following:
(a) Within 4 years after the effective date of this AD, replace the aluminum clevis ends on the tie rods for the center stowage bin supports with new steel clevis ends, in accordance with the Accomplishment Instructions of Boeing Service Bulletin 777-25-0120, Revision 1, dated March 16, 2000.
Note 2: Accomplishment of the replacement of clevis ends with new steel clevis ends prior to the effective date of this AD in accordance with Boeing Service Bulletin 777-25-0120, dated February 11, 1999, is acceptable for compliance with paragraph (a) 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
