AD 2002-19-12

Recurring final rule
Data completeness: 70%

Airworthiness Directives; Boeing Model 747-200B, -300, -400, -400D, and -400F Series Airplanes

AD Number
2002-19-12
Status
final_rule
Effective Date
Product Category
engine
Docket
Docket No. 2001-NM-22-AD
FR Citation
67 FR 61476

Applicability

TypeManufacturerModelDetails
aircraft Boeing 747-200B Airworthiness Directives; Boeing Model 747-200B, -300, -400, -400D, and -400F Series Airplanes

Unsafe Condition

Damage to the check tee valve at the top of an engine strut can prevent the extinguishing agent from reaching the engine, and cracks in the fire extinguisher discharge tubes can block or reduce the delivery of the fire extinguishing agent, potentially allowing a fire to spread from the engine to the wing.

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

Required Actions

Install the previously optional modification of the fire extinguisher discharge tubes on all affected airplanes. This modification constitutes terminating action for the repetitive inspections of the discharge tubes.

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Compliance Time

Before further flight

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Affected Aircraft

Boeing Model 747-200B, -300, -400, -400D, and -400F series airplanes, including one additional airplane added to the applicability.

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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