AD 2021-03-09
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Boeing | Company | Airworthiness Directives; The Boeing Company Airplanes |
Unsafe Condition
excessive sealant coating on internal wing Structural Significant Items (SSIs) may not reveal cracks during inspections required by AD 98-11-03 R1
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
revising the existing maintenance or inspection program, as applicable, to incorporate inspections that will give no less than the required damage tolerance rating (DTR) for certain SSIs of the wing, repetitive inspections for cracking of the affected SSIs and repair if necessary
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Prior to reaching the applicable time specified in paragraph (g)(2)(i) or (ii) of this AD
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Affected Aircraft
all The Boeing Company 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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