AD 2003-20-16
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Boeing | 747SP | Airworthiness Directives; Boeing Model 747SP, 747SR, 747-100, 747-200, and 747-300 Series Airplanes; Equipped With Pratt & Whitney Model JT9D-3, -7, and -7Q Series Engines and Model JT9D-7R4G2 Engines |
| engine | Pratt & Whitney | JT9D-3 | Airworthiness Directives; Boeing Model 747SP, 747SR, 747-100, 747-200, and 747-300 Series Airplanes; Equipped With Pratt & Whitney Model JT9D-3, -7, and -7Q Series Engines and Model JT9D-7R4G2 Engines |
Unsafe Condition
Possible failure modes in the thrust reverser control system that can result in inadvertent deployment of a thrust reverser during flight.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Install a terminating modification, perform repetitive functional tests of the installation to detect discrepancies, and repair if necessary.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within 48 months after the effective date of the AD.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Boeing Model 747SP, 747SR, 747-100, 747-200, and 747-300 series airplanes equipped with Pratt & Whitney Model JT9D-3, -7, and -7Q series engines and Model JT9D-7R4G2 engines.
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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