Airworthiness directives › 2015-17-24
AD 2015-17-24 Airworthiness Directives; The Boeing Company Airplanes
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-SB270021-00, Issue 001, dated March 20, 2014.
Compliance
Comply with this AD within the compliance times specified, unless already done.
Required actions
Within 24 months after the effective date of this AD: Replace the slat skew DMAs in slat number 5 and slat number 8 with new slat skew DMAs, and mark the existing identification plates on the slat with the new part number, in accordance with the Accomplishment Instructions of Boeing Alert Service Bulletin B787-81205-SB270021-00, Issue 001, dated March 20, 2014.
Unsafe condition
This AD was prompted by numerous reports of failures of the proximity sensor within the slat skew detection mechanism assembly (DMA) leading to slats up landing events. We are issuing this AD to prevent failure of the proximity sensor, which could result in the slats being shut down and a slats up high speed landing. This condition, in combination with abnormal landing conditions such as a short runway or adverse weather conditions, could result in a runway excursion.
Affected ADs
None.
Read the original on the Federal Register →
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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