# SDR CALA2016101700759

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 13, 2016
- Submitted: October 17, 2016
- Operation: Air carrier
- Aircraft: [N38443](https://openairdocs.org/aircraft/N38443), registered now
- Make and model: Boeing 737924ER
- Aircraft serial: 31655
- Aircraft time: 19,707 hours, 6,665 cycles
- System (JASC): [2730 · Elevator Control System](https://openairdocs.org/jasc/2730)
- Part: Actuator
- Part number: 251A451010
- Part serial: 10048010
- Condition: Failed
- Location: Horizontal Stab
- Part time: 19,707 hours, 6,665 cycles
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA2016101700759

## Discrepancy

HORIZONTAL STAB ACTUATOR FAILED WITH DISCOLORED WATER FROM BALL NUT.   REMOVED AND REPLACED HSTA IAW AMM 27-41-81-400-801 AND EA 2740-01227 OPS 3 OPS 4.

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