Airworthiness directives › 2022-11-05
AD 2022-11-05 Airworthiness Directives; The Boeing Company Airplanes
Models named: 777-200, -200LR, -300, -300ER, 777F series. Read the applicability below — it usually turns on serial or part numbers too.
Applicability*9
This AD applies to The Boeing Company Model 777-200, -200LR, -300, -300ER, and 777F series airplanes, certificated in any category, as identified in Boeing Alert Requirements Bulletin 777-57A0123 RB, dated July 8, 2021.
Compliance
Comply with this AD within the compliance times specified, unless already done.
Required actions
Except as specified by paragraph (h) of this AD: At the applicable times specified in the “Compliance” paragraph of Boeing Alert Requirements Bulletin 777-57A0123 RB, dated July 8, 2021, do all applicable actions identified in, and in accordance with, the Accomplishment Instructions of Boeing Alert Requirements Bulletin 777-57A0123 RB, dated July 8, 2021. Note 1 to paragraph (g): Guidance for accomplishing the actions required by this AD can be found in Boeing Alert Service Bulletin 777-57A0123, dated July 8, 2021, which is referred to in Boeing Alert Requirements Bulletin 777-57A0123 RB, dated July 8, 2021.
Unsafe condition
This AD was prompted by a report of the loss of the nuts at all four fastener locations common to the outboard flap inboard support rear spar attachment fittings, which affects the retention feature of the fasteners and leaves the fasteners susceptible to migrating out of the joint. The FAA is issuing this AD to address the resulting inability of the outboard flap support to sustain limit load, and potential loss of the outboard flap. Loss of the fastener retention feature in the rear spar attachment may lead to a severed joint at the forward attachment point, leading to separation of the support fitting, which could cause damage and consequent reduced controllability and reduced structural integrity of the airplane.
Affected ADs
None.
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The directive text above is reproduced from the Federal Register, a work of the United States government and in the public domain. The separation into applicability, compliance and required actions is TrackAD's.*1