# SDR ASAA2013052594891

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 25, 2013
- Submitted: May 29, 2013
- Operation: Air carrier
- Aircraft: [N518AS](https://openairdocs.org/aircraft/N518AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35693
- Aircraft time: 16,601 hours, 5,008 cycles
- System (JASC): [2230 · Auto Throttle System](https://openairdocs.org/jasc/2230)
- Part: Servo
- Part number: 305RAA1
- Part serial: AS05050
- Condition: Failed
- Location: Autothrottle
- Part time: 7,178 hours, 2,463 cycles
- Stage of operation: CL
- How discovered: O
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2013052594891

## Discrepancy

AUTOTHROTTLE DISENGAGED ON CLIMB OUT WITH ACCOMPANING RED AUTOTHROTTLE LIGHT. QRH ACCOMPLISHED.  AUTOTHROTTLE WOULD NOT STAY ENGAGED.  ACFT GROUNDED. CONFIRMED FAULT, AUTOTHROTTLE BITE FAILS ASM NR 1. REPLACED NR 1 AUTOTHROTTLE ASM REF AMM TASK 22-31-91, OPS CK NORMAL, REF AMM 22-31-00/501.

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