# SDR ASAA2023011971561

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 17, 2023
- Submitted: January 19, 2023
- Operation: Air carrier
- Aircraft: [N462AS](https://openairdocs.org/aircraft/N462AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 36362
- Aircraft time: 32,156 hours, 10,177 cycles
- System (JASC): [2230 · Auto Throttle System](https://openairdocs.org/jasc/2230)
- Part: Servo
- Part number: 305RAA1
- Part serial: AS09128
- Condition: Failed
- Location: Autothrottle Sys
- Part time: 33,756 hours, 10,676 cycles
- Stage of operation: NR
- 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/ASAA2023011971561

## Discrepancy

AUTOTHROTTLE BITE LOGGED ASM #1 MONITOR FAIL ON FLIGHT LEG 1 AND #1 ASM INTERACTIVE TEST FAILED SUBSEQUENT TESTING. GROUNDED - YES. REMOVED AND REPLACED # 1 AUTOTHROTTLE SERVO MOTOR REF B737-900 AMM 22-31-91/401.

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