# SDR ASAA2013110196273

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 1, 2013
- Submitted: November 5, 2013
- Operation: Air carrier
- Aircraft: [N565AS](https://openairdocs.org/aircraft/N565AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35181
- Aircraft time: 26,620 hours, 8,137 cycles
- System (JASC): [2230 · Auto Throttle System](https://openairdocs.org/jasc/2230)
- Part: Computer
- Part number: 8221604101
- Part serial: 16GX44
- Condition: Failed
- Location: Autothrottle
- Part time: 26,620 hours, 8,137 cycles
- Stage of operation: NR
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2013110196273

## Discrepancy

AUTOTHROTTLES CIRCUIT BREAKER TRIPPED OPEN, AUTOTHROTTLES INOPERATIVE.  ACFT GROUNDED.  DFCS FAULT CODE 22-31263, REPLACED FCC A IAW FIM 22-31, TASK 801, MM 22-11-33.  DFCS BITE GROUP NR 35 LRU REPLACEMENT TEST FOR FCC A PASS, DFCS BITE GROUP NR 49 LAND VERIFY PASS. AUTOTHROTTLE OPS TEST NORMAL IAW MM 22-31-00, A/T BITE TESTS NORMAL IAW FIM 22-31 TASK 801. HGS SENSOR TEST FOR FCC/AT PASS IAW MMS 34-36-00.  GROUND VERIFICATION SUCCESSFUL. LWMP STATUS REMAINS CAT IIIA AUTOLAND AND HGS.

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