AD 2015-17-12
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Cessna | Aircraft Company | Airworthiness Directives; Cessna Aircraft Company Airplanes |
Unsafe Condition
Excessive wear of the brushes in the air conditioning (A/C) motor can cause sparking, leading to rivet contact with the commutator, which may result in fire and/or smoke in the tailcone with no means to detect or extinguish the issue.
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Required Actions
Inspect to determine if certain A/C compressor motors are installed and to determine the accumulated hours on certain A/C compressor motor assemblies. Replace the brushes in the A/C compressor motor assembly repetitively, or deactivate the A/C system and install a placard as an alternative. Return replaced brushes to Cessna.
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Compliance Time
Before further flight
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Affected Aircraft
Cessna Aircraft Company Model 500, 501, 550, 551, S550, 560, and 650 airplanes.
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Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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