# SDR ASAA2019032128715

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 21, 2019
- Submitted: March 25, 2019
- Operation: Air carrier
- Aircraft: [N492AS](https://openairdocs.org/aircraft/N492AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 44110
- Aircraft time: 13,338 hours, 4,437 cycles
- System (JASC): [2210 · Autopilot System](https://openairdocs.org/jasc/2210)
- Part: Unknown
- Condition: Malfunctioned
- Location: Autoland Sys
- Stage of operation: LD
- 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/ASAA2019032128715

## Discrepancy

UNSUCCESSFUL AUTOLAND ON SEA RWY 16R EXCEED GREATER THAN 35FT FROM CENTERLINE ON TOUCHDOWN. WAS CLEAR, WIND 190/11. GROUNDED - YES. ACCOMPLISHED AMM 22-00-01-730-803 MAINTENANCE TESTS FOR MEL 22-99C DFCS BITE GROUPS #60 AND 35. ALL DFCS BITE TESTS PASSED. ALSO ACCOMPLISHED HGS SYSTEM AND OPS TESTS PER SMM 34-36-00 HGS TEST PASSED. APPROACH SURVEY COMPLETED ON LOG PAGE 12006977. A/C RELEASED FROM MELS 22-20B, 22-99B AND 22-99C.

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