AD 89-25-02

final rule
Data completeness: 70%

Airworthiness Directives; BOEING Model 737-300 and -400 Series Airplanes

AD Number
89-25-02
Status
final_rule
Effective Date
Product Category
aircraft
Docket
89-NM-225-AD
FR Citation
This information is not available.

Applicability

TypeManufacturerModelDetails
aircraft The Boeing Company 737-300 Series Airworthiness Directives; BOEING Model 737-300 and -400 Series Airplanes
aircraft The Boeing Company 737-400 Series Airworthiness Directives; BOEING Model 737-300 and -400 Series Airplanes

Unsafe Condition

Engine flameout during inadvertent airplane immersion into thunderstorm activity due to inadequate engine idle circuitry.

AI-generated summary from the source AD text. Verify against the official source before acting.

Required Actions

Modify the engine idle circuitry in accordance with Boeing Alert Service Bulletins 737-77A1026 (Revision 2) for Model 737-300 series and 737-77A1025 for Model 737-400 series. Compliance with AD 88-13-51 R1 is required for Model 737-300 series.

AI-generated summary from the source AD text. Verify against the official source before acting.

Compliance Time

within 60 days after the effective date of this AD, unless previously accomplished

AI-generated summary from the source AD text. Verify against the official source before acting.

Affected Aircraft

Boeing Model 737-300 and -400 series airplanes identified in Boeing Alert Service Bulletins 737-77A1026 (Revision 2) and 737-77A1025.

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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