# SDR ASAA2013020693837

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 6, 2013
- Submitted: February 8, 2013
- Operation: Air carrier
- Aircraft: [N588AS](https://openairdocs.org/aircraft/N588AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35685
- Aircraft time: 20,078 hours, 6,279 cycles
- Engine: Cfmint CFM567B27
- System (JASC): [2230 · Auto Throttle System](https://openairdocs.org/jasc/2230)
- Part: Autothrottle Sys
- Condition: Malfunctioned
- 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/ASAA2013020693837

## Discrepancy

AUTOTHROTTLE LIM ANNUNCIATED ON UPPER DISPLAY UNIT.  AUTOTHROTTLE OPS NORMAL WITH COMPUTED FMC LIMITS.  AUTOTHROTTLE LIMIT RESPONDS TO MANUAL SELECTION ON FMC.  FAULT CODE 223-220-00.  ACCOMPLISHED AUTOTHROTTLE BITE IAW FIM 22-31, TASK 801. CURRENT STATUS SHOWS NO FAULTS. IN-FLIGHT FAULTS SHOWS EEC 1A AND EEC 1B FAULTS.  ACCOMPLISHED EEC BITE AND A/T BITE PASS. GROUND VERIFICATION SUCCESSFUL.

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