Airworthiness directives › 2022-25-01
AD 2022-25-01 Airworthiness Directives; The Boeing Company Airplanes
Models named: 707-100 Long Body, -200, -100B Long Body, -100B Short Body series, 707-300, -300B, -300C, -400 series, 727, 727C. Read the applicability below — it usually turns on serial or part numbers too.
Applicability*9
This AD applies to The Boeing Company airplanes specified in paragraphs (c)(1) through (3) of this AD, certificated in any category. (1) Model 707-100 Long Body, -200, -100B Long Body, and -100B Short Body series airplanes. (2) Model 707-300, -300B, -300C, and -400 series airplanes. (3) Model 727, 727C, 727-100, 727-100C, 727-200, and 727-200F series airplanes.
Compliance
Comply with this AD within the compliance times specified, unless already done.
Required actions
For airplanes identified as Group 1 in Boeing Alert Requirements Bulletin 727-57A0190 RB, dated September 13, 2021: Within 120 days after the effective date of this AD, inspect the airplane and do all applicable on-condition actions using a method approved in accordance with the procedures specified in paragraph (j) of this AD.
Unsafe condition
This AD was prompted by a report indicating cracking in fastener holes at the center wing box and at certain positions of the rear spar and lower skin on a Model 737-300 airplane. A cross model review determined that similar cracking of the fastener holes in the center wing box lower skin could occur on Model 707 and Model 727 airplanes. The FAA is issuing this AD to address cracking in the center wing box lower skin or rear spar lower chord, which could result in the inability of the structure to sustain limit load and adversely affect the 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