Airworthiness directives › 2025-23-03
AD 2025-23-03 Airworthiness Directives; The Boeing Company Airplanes
Models named: 757-200, -200PF, -200CB, -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, -200PF, -200CB, and -300 series airplanes, certificated in any category, as identified in Boeing Alert Requirements Bulletin 757-26A0062 RB, dated January 17, 2025.
Compliance
Comply with this AD within the compliance times specified, unless already done.
Required actions
Except as specified in paragraph (h) of this AD: At the applicable times specified in the “Compliance” paragraph of Boeing Alert Requirements Bulletin 757-26A0062 RB, dated January 17, 2025, do all applicable actions identified in, and in accordance with, the Accomplishment Instructions of Boeing Alert Requirements Bulletin 757-26A0062 RB, dated January 17, 2025. Note 1 to paragraph (g): Guidance for accomplishing the actions required by this AD can be found in Boeing Alert Service Bulletin 757-26A0062, dated January 17, 2025, which is referred to in Boeing Alert Requirements Bulletin 757-26A0062 RB, dated January 17, 2025.
Unsafe condition
This AD was prompted by reports of precoolers that failed due to a wear-out condition. The FAA is issuing this AD to address the combination of a failed precooler and latently failed overheat detection thermal switches. The unsafe condition, if not addressed, may result in prolonged high temperature heat exposure on the strut, which could lead to separation of the engine strut-to-wing box connection.
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