AD 76-13-01
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | The Boeing Company | 727-100 Series | BOEING Model 727 Series Airplanes |
| aircraft | The Boeing Company | 727-100C Series | BOEING Model 727 Series Airplanes |
| aircraft | The Boeing Company | 727-200 Series | BOEING Model 727 Series Airplanes |
| aircraft | The Boeing Company | 727-200F Series | BOEING Model 727 Series Airplanes |
| aircraft | The Boeing Company | 727 Series | BOEING Model 727 Series Airplanes |
| aircraft | The Boeing Company | 727C Series | BOEING Model 727 Series Airplanes |
Unsafe Condition
Corrosion and/or cracking in the lower body skin along specific body stations and stringers on Group I and II Boeing 727 series airplanes.
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Required Actions
Inspect lower body skin for corrosion and/or cracking using specified Boeing Service Bulletin procedures. Repair any found corrosion or cracking per the bulletin. Modify per service bulletin for terminating action. Adjust intervals with FAA approval.
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Compliance Time
Within the next six (6) months from the effective date of this AD, unless accomplished within the last eighteen (18) months, and thereafter at intervals not to exceed twenty-four (24) months (Option A). Option B requires inspections within eighteen (18) months from the effective date, with additional monthly inspections as specified.
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Affected Aircraft
Boeing Model 727 series airplanes categorized as Group I and II per Boeing Service Bulletin No. 727-53-128, Revision 2 or later FAA approved revisions.
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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