# SDR UPS99828847

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 4, 1999
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: N744UP
- Make and model: Doug DC-8-71F
- Registry model: [Doug DC-8-71F](https://openairdocs.org/model/douglas-dc-8-71f) (OpenAirDocs)
- Aircraft serial: 45944
- System (JASC): [2740 · Stabilizer Control System](https://openairdocs.org/jasc/2740)
- Part: Trim Servo
- Condition: Failed
- Location: Horiz Stab
- Stage of operation: IN
- Nature of condition: B
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UPS99828847

## Discrepancy

INSPECTION TYPE-N/A WHILE A/C WAS BEING LOADED, LOADERS COMPLAINED OF A STRANGE SMELL.  MAINT WAS CALLED AND OBSERVED SMOKE IN A/C.  A/C WAS EVACUATED AND THE FIRE DEPARTMENT WAS DISPATCHED.  FOUND LONG TRIM SERVO UNIT 2 FROZEN EVIDENCE OF MOTOR BURNED UP.  REMOVED AND REPLACED SERVO PER M/M 27-41-10 (P/N 300425-02) ON, (P/N 300425-01) OFF, OPS CHECK GOOD.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.