AD 90-04-08
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 of fuselage skins with .040 inch skin and .020 inch bonded doubler could lead to rapid depressurization.
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Required Actions
Conduct eddy current or ultrasonic inspections to determine fuselage skin configuration. If the .040 inch skin with .020 inch bonded doubler is present, perform a one-time eddy current inspection for cracks in specified lap splices, repair any cracks found prior to further flight, and submit a report within 10 days. Alternate compliance may be approved.
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Compliance Time
within the next 600 landings after the effective date of this AD, unless previously accomplished
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Affected Aircraft
BOEING Model 727 series airplanes, line numbers 048 through 453
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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