AD 90-25-03
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
Corrosion in Model 727 series airplanes could lead to structural failure if not controlled through an approved corrosion prevention and control program.
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Required Actions
Revise the FAA-approved maintenance program to include Boeing Document D6-54929's corrosion control program within one year after the AD's effective date. Report Level 3 corrosion findings within 7 days and inspect fleet or submit adjustments to inspection schedules to the Seattle ACO. Submit quarterly reports for Level 2 corrosion and follow-up reports for Level 3 corrosion. Maintain or shorten existing corrosion inspection intervals without approval.
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Compliance Time
Within one year after the effective date of this AD
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Affected Aircraft
All Model 727 series airplanes, certificated in any category.
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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