AD 2009-15-14
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Aviat | Various | Airworthiness Directives; Agusta S.p.A. Model AB139 and AW139 Helicopters |
Unsafe Condition
The electrical receptacle/connectors on the fire extinguisher bottle, which command the firing of the extinguishing agent, were swapped between engines No. 1 and No. 2. This could cause the extinguishing agent to be discharged toward the unselected engine when the system is activated, rather than toward the engine with the fire.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Determine if each engine has the proper outlet end on the electrical receptacle/connector that attaches the firing cartridge to the fire extinguisher bottle. If not, replace the fire extinguisher bottle before further flight.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within 100 hours time-in-service (TIS) or 3 months, whichever occurs first.
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Affected Aircraft
Agusta S.p.A. Model AB139 helicopters, serial number (S/N) 31005 through 31054, except S/N 31007, and AW139 helicopters, S/N 31055 through 31067, S/N 31070, and S/N 31071, certificated in any category.
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 4, 2026
Rights: U.S. Government Public Domain
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