# SDR 2026FA0000577

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 10, 2026
- Submitted: July 10, 2026
- Operation: General aviation
- Aircraft: [N650LL](https://openairdocs.org/aircraft/N650LL), registered now
- Make and model: Pilats PC1245
- Aircraft serial: 449
- Aircraft time: 4,560 hours, 3,345 cycles
- System (JASC): [3230 · Landing Gear Retraction/Extension System](https://openairdocs.org/jasc/3230)
- Part: Motor
- Part number: 2912
- Condition: Worn
- Location: Zone 100
- Part time: 4,560 hours, 3,345 cycles
- Component: Power Pack, Pilats
- Component part number: 520766
- Stage of operation: TO
- How discovered: O
- Nature of condition: J
- Precautionary procedure: C
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2026FA0000577

## Discrepancy

DURING CRUISE FIGHT THE CREW RECEIVED A HYD CAWS ANNUNCIATION.  THE LANDING GEAR DID NOT RESPOND TO THE NORMAL GEAR EXTENSION COMMAND. THE CREW EMERGENCY EXTENDED THE GEAR VIA THE MANUAL EXTENSION PUMP.  DURING THE TROUBLE SHOOTING MAINTENANCE DISCOVERED THE HYDRAULIC PUMP DRIVE MOTOR BRUSHES AND COMMUTATOR WORN BEYOND LIMITS AND THE COMMUTATOR SEGMENTS ARCED.   NOTE:  THE MOTOR WAS FOUND TO BE AN ORIGINAL INSTALLED WITH A DATE OF MFG OF 2021.

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