# SDR ASAA0954434

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 13, 2009
- Submitted: February 18, 2009
- Operation: Air carrier
- Aircraft: [N518AS](https://openairdocs.org/aircraft/N518AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35693
- Aircraft time: 173 hours, 61 cycles
- System (JASC): [2230 · Auto Throttle System](https://openairdocs.org/jasc/2230)
- Part: Autothrottle Sys
- Part number: 305RAA1
- Part serial: AS05758
- Condition: Malfunctioned
- Location: Cockpit
- Stage of operation: NR
- 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/ASAA0954434

## Discrepancy

AUTO THROTTLES DISENGAGED, WILL NOT RE ENGAGE.  INFLIGHT FAULTS LOGGED NR 2 ASM FAULT 15 TIMES ON FLIGHT LEG NR 2.  SUGGEST REMOVING AND REPLACING NR 2 AUTOTHROTTLE SERVO MOTOR PART NUMBER 305RAA1 REF IPC 22-31-91-01. A/T SYS TESTS GOOD PER MM 22 31 00/501.  CLEARS MEL 22 4B REMOVED PLACARD C/N 0213010.

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