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Airworthiness directives › 2017-09-08

AD 2017-09-08 Airworthiness Directives; The Boeing Company Airplanes

2017-06-27
2017-05-23
39-18870
FAA-2016-9439
Airframe
—

Models named: 787-8. Read the applicability below — it usually turns on serial or part numbers too.

Applicability*9

This AD applies to The Boeing Company Model 787-8 airplanes, certificated in any category, as identified in Boeing Alert Service Bulletin B787-81205-SB240027-00, Issue 002, dated September 6, 2016 (“ASB B787-81205-SB240027-00, Issue 002”).

Compliance

Comply with this AD within the compliance times specified, unless already done.

Required actions

Within 12 months after the effective date of this AD, do a general visual inspection of the right and left wing, section 16, VFSG power feeder cable terminal lugs at the terminal block for correct installation and do all applicable corrective actions, in accordance with ASB B787-81205-SB240027-00, Issue 002. Do all applicable corrective actions before further flight.

Unsafe condition

This AD was prompted by a report indicating that during an airplane inspection in production, the variable frequency starter generator (VFSG) power feeder cables were found to contain terminal lugs incorrectly installed common to terminal blocks located in the wing front spar; the lugs were close to the structure causing the lug sleeve to come in contact with adjacent fasteners. We are issuing this AD to detect and correct incorrectly installed terminal lugs which may contact adjacent structure and be damaged. Damaged terminal lugs could cause the potential loss of several functions essential for safe flight or electrical arcing in a flammable leakage zone, which could result in an electrical short and the possible introduction of energy into the main fuel tanks.

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