Airworthiness directives › 2026-04-06
AD 2026-04-06 Airworthiness Directives; The Boeing Company Airplanes
Models named: 757-200, -300 series. Read the applicability below — it usually turns on serial or part numbers too.
Applicability*9
This AD applies to The Boeing Company Model 757-200 and -300 series airplanes, certificated in any category, as identified in Aviation Partners Boeing Alert Service Letter APBSL757-0039 Rev IR, dated February 4, 2026.
Compliance
Comply with this AD within the compliance times specified, unless already done.
Required actions
(1) Within 5 days after the effective date of this AD, do an external detailed inspection and an external high frequency eddy current inspection of the wing lower skin panel between wing station (WSTA) 711.5 and WSTA 743.5, left and right wing, for cracks, in accordance with Figure 1 of Aviation Partners Boeing Alert Service Letter APBSL757-0039 Rev IR, dated February 4, 2026. (2) If any crack is found, during any inspection required by paragraph (g)(1) of this AD, repair before further flight using a method approved in accordance with the procedures specified in paragraph (i) of this AD.
Unsafe condition
This AD was prompted by reported crack findings on airplanes with scimitar blended winglets. The FAA is issuing this AD to address the potential for an undetected crack in the inspar outer lower left and right wing skin area. The unsafe condition, if not addressed, could result in reduced structural integrity or partial wing loss leading to loss of control of the airplane.
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