# SDR P5CA0601433

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 19, 2006
- Submitted: January 27, 2006
- Operation: Air carrier
- Aircraft: [N509MC](https://openairdocs.org/aircraft/N509MC), registered now
- Make and model: Boeing 747230B
- Aircraft serial: 21221
- Aircraft time: 115,277 hours, 21,947 cycles
- System (JASC): [2210 · Autopilot System](https://openairdocs.org/jasc/2210)
- Part: Trim System
- Part number: 2591415902
- Part serial: 0050185
- Condition: Malfunctioned
- Location: Autopilot Sys
- Stage of operation: CR
- How discovered: O
- Nature of condition: S
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/P5CA0601433

## Discrepancy

AUTOPILOT A DID NOT TRIM STABILIZER AND DID NOT CAPTURE ALTITUDE.  REPLACED THE AUTOMATIC STABILIZER TRIM UNIT PER MM 22-14-01.  TEST OK.

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