# SDR ASAA2017061921124

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 19, 2017
- Submitted: June 30, 2017
- Operation: Air carrier
- Aircraft: [N478AS](https://openairdocs.org/aircraft/N478AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 44105
- Aircraft time: 7,742 hours, 2,589 cycles
- System (JASC): [2210 · Autopilot System](https://openairdocs.org/jasc/2210)
- Part: Autoland Sys
- Condition: Malfunctioned
- Stage of operation: LD
- How discovered: O
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2017061921124

## Discrepancy

AUTOLAND UNSUCCESSFUL,  LEFT OF CENTERLINE 60 FEET.  ACFT GROUNDED.   IAW AMM 22-00-01-730-807 REVIEWED FAULTS DFCS HISTORY BITE GROUP NR 20.  NO FAULTS FOR AUTOLAND.  PERFORMED DFCS LAND VERIFY BITE GROUP NR 49 IAW AMM 22-11-00-700-801 AND ELEVATOR POSITION SENSOR TEST BITE GROUP NR 47 IAW AMM 22-11-30-710-801. BOTH TESTS PASSED, NO FAULTS, NO CURRENT FAULTS. CHECKED HGS FAULT HISTORY IAW SMM 34-36-00 - NO FAULTS. ALL TESTS PASSED, NO FAULTS NOTED.

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