# SDR SWAA2021060178767

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 28, 2021
- Submitted: June 1, 2021
- Operation: Air carrier
- Aircraft: [N912WN](https://openairdocs.org/aircraft/N912WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 36621
- Aircraft time: 44,485 hours, 26,717 cycles
- System (JASC): [2740 · Stabilizer Control System](https://openairdocs.org/jasc/2740)
- Part: Relay
- Part number: 91238071
- Part serial: BN107845
- Condition: Inoperative
- Location: Trim Control
- Stage of operation: CL
- How discovered: 9
- Nature of condition: F
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SWAA2021060178767

## Discrepancy

DURING INITIAL CLIMB OUT; ELECTRIC TRIM BECAME INOP; BOTH SIDES. MANUAL TRIM NORMAL. ; / REMOVED AND REPLACED FCC B AND STAB TRIM RELAY; AMM 22-11-33 AND SWPM 20-81.

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