# SDR 9JLA2020120227617

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 29, 2020
- Submitted: December 2, 2020
- Operation: Air carrier
- Aircraft: [N25PP](https://openairdocs.org/aircraft/N25PP), registered now
- Make and model: Cessna 560XL
- Registry model: [Cessna 560XL](https://openairdocs.org/model/cessna-560xl) (OpenAirDocs)
- Aircraft serial: 5605671
- Aircraft time: 3,643 hours, 3,000 cycles
- System (JASC): [2740 · Stabilizer Control System](https://openairdocs.org/jasc/2740)
- Part: Switch
- Part number: D45C24
- Part serial: 912
- Condition: Faulty
- Location: Airspeed
- Stage of operation: DE
- How discovered: O
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/9JLA2020120227617

## Discrepancy

THE FLIGHT CREW REPORTED THAT THE STABILIZER WOULD NOT FUNCTION DURING THE DESCENT FOR LANDING.  THE LANDING WAS UNEVENTFUL.  THE MAINTENANCE VENDOR DETERMINED THAT THE AIRSPEED SWITCH PN D45C-24 WAS FAULTY.  A NEW AIRSPEED SWITCH WAS INSTALLED.  OPERATIONS CHECKS WERE SATISFACTORY.  THE AIRCRAFT WAS RETURNED TO SERVICE.

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