# SDR ASAA12511067

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 7, 2012
- Submitted: February 9, 2012
- Operation: Air carrier
- Aircraft: [N519AS](https://openairdocs.org/aircraft/N519AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 36482
- Aircraft time: 11,412 hours, 3,470 cycles
- System (JASC): [2210 · Autopilot System](https://openairdocs.org/jasc/2210)
- Part: Unknown
- Condition: Malfunctioned
- Location: Autopilot Sys
- Stage of operation: AP
- How discovered: O
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA12511067

## Discrepancy

ON APPROACH AT ABOUT 1500 AGL "APPROACH MODE" AUTOPILOT "B" ENGAGED AUTOPILOT B DISENGAGED ITSELF.  DID NOT TRY TO RE-ENGAGE AUTOPILOT.  ACCOMPLISHED FIM 22 11 TASK 801.  LOC BEAM ANOMOLY DET FAULT LOGGED ON LEG 1.  LAND VERIFY TEST PASSED.  GROUND VERIFICATION SUCCESSFUL.

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