AD 92-12-03
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | The Boeing Company | 727-100 Series | Airworthiness Directives; BOEING Model 727 Series Airplanes |
| aircraft | The Boeing Company | 727-100C Series | Airworthiness Directives; BOEING Model 727 Series Airplanes |
| aircraft | The Boeing Company | 727-200 Series | Airworthiness Directives; BOEING Model 727 Series Airplanes |
| aircraft | The Boeing Company | 727-200F Series | Airworthiness Directives; BOEING Model 727 Series Airplanes |
| aircraft | The Boeing Company | 727 Series | Airworthiness Directives; BOEING Model 727 Series Airplanes |
| aircraft | The Boeing Company | 727C Series | Airworthiness Directives; BOEING Model 727 Series Airplanes |
Unsafe Condition
Cracking in the fuselage aft lower lobe frames between body stations BS 950 and BS 1166.
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Required Actions
Conduct a detailed visual inspection of fuselage frames per Boeing Alert Service Bulletin 727-53A0195 or Revision 1. Repeat inspections at intervals not exceeding 4,000 flight cycles or 36 months. Perform repairs prior to further flight if cracks are found. Complete preventive modification per the same service bulletin within specified flight cycles or months.
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Compliance Time
Prior to the time specified in subparagraph (a)(1) or (a)(2) of this AD, whichever occurs first. For (a)(1): within the next 3,000 flight cycles or 15 months after April 24, 1990, or prior to 40,000 flight cycles. For (a)(2): within the next 3,000 flight cycles or 24 months after AD effective date, or prior to 28,000 flight cycles. For preventive modification (e): within 7,500 flight cycles or 45 months after AD effective date, or prior to 47,500 flight cycles.
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Affected Aircraft
Boeing Model 727 airplanes certificated in any category, including 727-100, 727-100C, 727-200, 727-200F, 727 Series, and 727C Series.
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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