# SDR ASAA2020092133207

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 21, 2020
- Submitted: September 22, 2020
- Operation: Air carrier
- Aircraft: [N569AS](https://openairdocs.org/aircraft/N569AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35184
- Aircraft time: 49,920 hours, 15,127 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/ASAA2020092133207

## Discrepancy

AUTOLAND FAIL-AIRCRAFT NOSEWHEEL TOUCHED DOWN HALFWAY BETWEEN LEFT RUNWAY EDGE AND CENTERLINE AND CONTINUED TO TRACK LEFT UNTIL I DISENGAGED AUTO PILOT.  AIRPORT REPORTED CALM WINDS AND RUNWAY WAS PROTECTED FOR CAT III OPS.  GROUNDED-YES.  PERFORMED LAND VERIFY, PER B737-800 AMM 22-11-00 AND HGS TEST, PER CMM 34-36-00.  ALL OPS CHECK GOOD.

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