# SDR DLM88011207

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 20, 2001
- Submitted: July 27, 2001
- Operation: Air carrier
- Aircraft: N977DL
- Make and model: Doug MD-88
- Registry model: [Doug MD-88](https://openairdocs.org/model/mcdonnell-douglas-md-88) (OpenAirDocs)
- Aircraft serial: 53258
- Aircraft time: 29,336 hours, 22,918 cycles
- System (JASC): [2216 · Autopilot Trim Servo](https://openairdocs.org/jasc/2216)
- Part: Trim Motor
- Part number: D17751
- Part serial: 1248
- Condition: Faulty
- Location: Autopilot Sys
- Stage of operation: CR
- How discovered: O
- Nature of condition: J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DLM88011207

## Discrepancy

A/P C/BS POPPED.  A/P TRIM LIGHT ILLUM.  A/P TRIM INOP.  RESET C/BS.  D11 POPPED 2ND TIME.  PRIMARY TRIM FUNCTIONED ENTIRE TIME.  REPLACED ALTERNATE STABILIZER TRIM MOTOR PER M/M.  PERFORM RTS TEST ON BOTH DFGCS.  BOTH PASS/GO.  STAB TRIM NOW OPS NORMAL.

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