# SDR DLM88001737

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 8, 2000
- Submitted: September 14, 2000
- Operation: Air carrier
- Aircraft: N910DL
- Make and model: Doug MD-88
- Registry model: [Doug MD-88](https://openairdocs.org/model/mcdonnell-douglas-md-88) (OpenAirDocs)
- Aircraft serial: 49541
- Aircraft time: 36,179 hours, 30,924 cycles
- System (JASC): [2740 · Stabilizer Control System](https://openairdocs.org/jasc/2740)
- Part: Motor
- Condition: Malfunctioned
- Location: Stab Trim
- Stage of operation: CL
- How discovered: O
- Nature of condition: F, J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DLM88001737

## Discrepancy

PRIMARY STAB TRIM FAILED DURING CLIMB.  ALTERNATE TRIM OPERATED NORMAL.  RETURNED TO CVG.  YOKE AND SUITCASE SWITCHES BOTH WERE INOP.  TRIM FAILED AT 2 UNITS.  CHECKED POWER IN AND OUT OF TRIM RELAYS.  CHECKED POWER AT PRIMARY TRIM MOTOR AND BRAKE WITH METER AND TEST LIGHT.  ALL CKS OK.  REPLACED PRIMARY STAB TRIM MOTOR AS PRECAUTIONARY.  ALL CKS 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.