# SDR ASAA2016051816757

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 18, 2016
- Submitted: May 18, 2016
- Operation: Air carrier
- Aircraft: [N588AS](https://openairdocs.org/aircraft/N588AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35685
- Aircraft time: 32,656 hours, 9,916 cycles
- Engine: Cfmint CFM567B27
- System (JASC): [7310 · Engine Fuel Distribution](https://openairdocs.org/jasc/7310)
- Part: Warning Light
- Condition: False Activation
- Location: Cdu
- Stage of operation: IN
- How discovered: O
- Nature of condition: N
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2016051816757

## Discrepancy

WHILE ACCOMPLISHING T/C 78273000, INTERROGATE THE FMC CDU FOR ENGINE FAULTS, FOUND MAINTENANCE MESSAGE 73-21372, UPPER EGT SECTORS READING HIGH, ECONOMIC FAULT LOGGED ON FLIGHT LEG 3 OF RECENT FAULTS.  ACFT GROUNDED.  ACCOMPLISHED FMC CDU BITE, NO CURRENT ACTIVE FAULTS.  ELECTRONIC ENGINE CONTROL BITE PASSES, REF AMM 73-21-00.

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