AD 48-42-02
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Lockheed Aircraft Corporation | 18 | LOCKHEED Model 18 Aircraft |
Unsafe Condition
Failure of fire detection and extinguishing systems, hydraulic reservoir oil tank guards, windshield alcohol tank guards, baggage compartment sealing, power plant lines and fittings, emergency oil shut-off valves, cabin heater ducts, firewall revisions, and anti-icing system provisions could lead to uncontrolled fires and loss of aircraft control.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Install fire detection and extinguishing systems, hydraulic reservoir oil tank guards, windshield alcohol tank guards, seal baggage compartments, replace power plant lines and fittings, install emergency oil shut-off valves, revise cabin heater ducts, firewall, and anti-icing systems per specified service bulletins. Inspect cabin interior fabrics and finishes for compliance with CAR 4b.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
not later than the date established in accordance with the provisions of special Civil Regulation Serial Number SR-329, or any subsequent regulation affecting this compliance date
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Affected Aircraft
Lockheed Aircraft Corporation Model 18 aircraft operated in scheduled and non-scheduled air carrier passenger service.
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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