# SDR ASAA2018073125586

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 27, 2018
- Submitted: August 2, 2018
- Operation: Air carrier
- Aircraft: [N532AS](https://openairdocs.org/aircraft/N532AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 36346
- Aircraft time: 31,709 hours, 9,445 cycles
- System (JASC): [2210 · Autopilot System](https://openairdocs.org/jasc/2210)
- Part: Sensor
- Part number: H504B
- Condition: Out Of Adjust
- Location: Autopilot Sys
- Stage of operation: IN
- How discovered: C
- Nature of condition: L
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2018073125586

## Discrepancy

STAB TRIM MOTOR FAILED TEST PER AMM 22-11-81-710-801, AMM 27-41-00-700-801, ACCOMPLISHED STAB ELEC TRIM SYSTEM TEST REF AMM 27-41-00-700-803, TEST NORMAL, COULD NOT DUPLICATE FAILED TEST. UNABLE TO PERFORM LAND VERIFY DUE TO FCC-A FAILURE. SUSPECT STAB POS SENSOR 01, FCC-A. AUTOPILOT A INOP, A/T INOP. GROUNDED - YES. ACCOMPLISHED STAB POS SENS ADJ & TEST REF AMM 22-11-31/501. ADJUSTED CH A SENSOR TO WITHIN LIMITS. ACCOMPLISHED DFCS LRU REPLACEMENT TEST FOR STAB SENS, GRP 44, REF AMM 22-11-31/501. ALL TESTS PASSED. ACCOMPLISHED A/T SYS OPERATIONAL TEST REF AMM 22-31-00-710-801. ALL TESTS PASSED. ACCOMPLISHED LAND VERIFY TEST, GRP 49, REF AMM 22-11-00-700-801. ALL TESTS PASSED.

---
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.