AD 48-12-04
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Lockheed Aircraft Corporation | 149-46 | LOCKHEED Models 49 and 149 Aircraft |
| aircraft | Lockheed Aircraft Corporation | 49-46 | LOCKHEED Models 49 and 149 Aircraft |
Unsafe Condition
Fire Prevention Requirements
Required Actions
All air carrier aircraft must be modified to comply with fire prevention requirements outlined in CAR Amendments 41-3, 42-2, and 61-2. Modifications include installing louver covers, replacing upholstery, reworking receptacles, baggage compartment lining, smoke detectors, CO2 provisions, sealing access doors, relocating fire detectors, and installing check valves and metal landing gear doors as per specified service bulletins.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
not later than the dates specified in the above amendments as revised by special Civil Air Regulations Serial Nos. 385, 390, 390A, 390B and any subsequent regulations affecting these compliance dates
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Affected Aircraft
Lockheed Aircraft Corporation Models 49 and 149 as specified by Civil Air Regulations Amendments 41-3, 42-2, and 61-2.
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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