# SDR ASAA2019040548892

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 4, 2019
- Submitted: April 5, 2019
- Operation: Air carrier
- Aircraft: [N434AS](https://openairdocs.org/aircraft/N434AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 61620
- Aircraft time: 12,313 hours, 3,962 cycles
- System (JASC): [2230 · Auto Throttle System](https://openairdocs.org/jasc/2230)
- Part: Autothrottle Sys
- Condition: Malfunctioned
- Stage of operation: CR
- 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/ASAA2019040548892

## Discrepancy

IN CRUISE, AUTOTHROTTLES DISENGAGED. C/B P18 E-1 POPPED. GROUNDED - YES. ACCOMPLISHED C/B RESET PROCEDURE REF. B737-900 AMM 20-60-01. RESET AUTOTHROTTLE DC-1 ON P18-1. CURRENT STATUS TEST SHOWS MSG. 22-31544 A/T DISENGAGE THRU LVR-1. ACCOMPLISHED FIM 22-32 TASK 805. AUTOTHROTTLE BITE OPS NORMAL REF. 22-31 TASK 801.

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