AD 2009-13-09
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Aviat | Various | Airworthiness Directives; Microturbo SA Saphir 2 Model 016 Auxiliary Power Units |
Unsafe Condition
Due to a lapse in manufacturing quality control, the exhaust thermal insulation of certain Microturbo SA Saphir 2 model 016 APUs may not meet the approved design standard, and may fail in service. This could result in rapid deterioration and physical breakdown of the exhaust thermal insulation, leading to loss of insulation efficiency and ultimately exposure of the hot APU exhaust section and risk of fire.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Initial and repetitive visual inspections of certain exhaust thermal insulation for signs of deterioration are required. Affected exhaust thermal insulation must be replaced as a mandatory terminating action to the repetitive visual inspections.
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Compliance Time
Before further flight
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Affected Aircraft
Microturbo SA Saphir 2 model 016 auxiliary power units (APUs) on which the exhaust thermal insulation has been replaced since January 1, 1995. These APUs are installed on, but not limited to, Dassault Falcon 20 airplanes.
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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