# SDR 9JLA201705229615

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 31, 2017
- Submitted: May 22, 2017
- Operation: Air carrier
- Aircraft: [N629BT](https://openairdocs.org/aircraft/N629BT), registered now
- Make and model: Cessna 560XL
- Registry model: [Cessna 560XL](https://openairdocs.org/model/cessna-560xl) (OpenAirDocs)
- Aircraft serial: 5605696
- Aircraft time: 2,269 hours, 1,947 cycles
- System (JASC): [2741 · Stabilizer Position Indicating](https://openairdocs.org/jasc/2741)
- Part: Speed Switch
- Part number: D45C24
- Part serial: 948
- Condition: Defective
- Location: Horizontal Stab
- Stage of operation: AP
- 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/9JLA201705229615

## Discrepancy

DURING APPROACH, AFTER THE FLAPS HAD BEEN SELECTED TO SEVEN DEGREES, RECEIVED A STAB MISCOMPARE ANNUNCIATION,  FOLLOWED BY A SIGNIFICANT CLIMB MOVEMENT. THE AIRCRAFT LANDED WITHOUT INCIDENT. TROUBLESHOOTING DETERMINED THAT THE SPEED SWITCH OF THE TWO-SPEED POSITION HORIZONTAL STABILIZER WAS DEFECTIVE. THE SPEED SWITCH WAS REPLACED. OPERATIONAL CHECKED SATISFACTORY. THE AIRCRAFT WAS RETURNED TO SERVICE.

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