AD 2013-14-02
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Boeing | Company | Airworthiness Directives; The Boeing Company Airplanes |
Unsafe Condition
Reports of spanwise cracks and corrosion in the wing center box upper skin and rear spar upper chord between left buttock line (LBL) 70.50 and right buttock line (RBL) 70.50 at body station (STA) 870.
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Required Actions
Inspect the wing center box for cracking around certain fastener rows on the rear spar upper chord horizontal flange; for certain airplanes, inspect for cracking of the rear spar upper chord radius; for other airplanes, inspect for damage, cracking, and corrosion of the pressure seal. Repair if necessary.
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Compliance Time
Within the compliance times specified in Boeing Special Attention Service Bulletin 727-57-0187, dated March 8, 2012, after the effective date of this AD.
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Affected Aircraft
All The Boeing Company Model 727, 727C, 727-100, 727-100C, 727-200, and 727-200F series airplanes, certificated in any category.
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Source: Official FAA Source ↗
Retrieved: Apr 4, 2026
Rights: U.S. Government Public Domain
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