AD 85-11-52 R1
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | The Boeing Company | 737-300 Series | BOEING Model 737-300 Series Airplanes |
Unsafe Condition
Engine flameouts during climb due to incompatible fuel types in airplanes equipped with Plessey Type 8240 Mark 1, 2, or 3 fuel boost pumps or TRW 10-60533-1 fuel boost pumps.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Ensure use of approved fuels (Jet A/A1, JP5, DERD 2494/2498, or AIR 3404/3405 fuels); incorporate approved fuel list into Airplane Flight Manual Limitations Section within 48 hours; provide crews with updated documentation.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Before further flight (for fuel use requirement) and within 48 hours (for AFM update).
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Boeing Model 737-300 series airplanes with Plessey Type 8240 Mark 1, 2, or 3 fuel boost pumps or TRW 10-60533-1 fuel boost pumps.
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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