# SDR 371PA0020

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 12, 2003
- Submitted: April 17, 2003
- Operation: Air carrier
- Aircraft: [N371PA](https://openairdocs.org/aircraft/N371PA), registered now
- Make and model: Boeing 737306
- Aircraft serial: 23543
- Aircraft time: 33,474 hours, 25,577 cycles
- System (JASC): [2230 · Auto Throttle System](https://openairdocs.org/jasc/2230)
- Part: Computer
- Condition: Malfunctioned
- Location: Autothrottle
- Stage of operation: TO
- 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/371PA0020

## Discrepancy

AUTO THROTTLE SWITCH WOULD NOT STAY ARMED DURING TAKEOFF ROLL.  DURING CLIMB WITH AUTO THROTTLE ARMED, NR 1 N1=94.7, NR 2 N1= 91.5 AT FL290.  PERFORMED AUTO THROTTLE BITE AND RANGE CHECK ON FMS.  NO FAULTS NOTED.  OK FOR SERVICE PER MM 22-30-01.

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