# SDR ABXA080120

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 5, 2008
- Submitted: April 10, 2008
- Operation: Air carrier
- Aircraft: N909AX
- Make and model: Doug DC-9-32F
- Registry model: [Doug DC-9-32F](https://openairdocs.org/model/douglas-dc-9-32f) (OpenAirDocs)
- Aircraft serial: 47148
- Aircraft time: 50,144 hours, 67,062 cycles
- System (JASC): [2740 · Stabilizer Control System](https://openairdocs.org/jasc/2740)
- Part: Relay
- Part number: 920710296
- Part serial: MD04113
- Condition: Defective
- Location: E&E Bay
- Stage of operation: IN
- How discovered: O
- Nature of condition: B
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ABXA080120

## Discrepancy

PRIMARY TRIM CIRCUIT BREAKER TRIPPED WHILE SETTING TAKEOFF TRIM.  WHILE MECHANIC WAS TROUBLESHOOTING PRIMARY TRIM, HEAVY SMOKE PRODUCED THROUGHOUT FRONT & REAR CABIN.  CREW CONDUCTED EMERGENCY SHUT DOWN & EVACUATED AIRCRAFT.  FOUND RELAY R20-15 BURNT.  REPLACED RELAY R20-15 IAW DC9 AMM 27.40.04.

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