# SDR DXTA2026082809469

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 27, 2026
- Submitted: August 31, 2026
- Operation: Air carrier
- Aircraft: [N547QS](https://openairdocs.org/aircraft/N547QS), registered now
- Make and model: Cessna 680A
- Registry model: [Cessna 680A](https://openairdocs.org/model/cessna-680a) (OpenAirDocs)
- Aircraft serial: 680A0094
- Aircraft time: 9,109 hours, 6,010 cycles
- Engine: Pwc PW306D1
- System (JASC): [7320 · Fuel Controlling System](https://openairdocs.org/jasc/7320)
- Part: Eec
- Condition: Faulted
- Location: Lt
- Stage of operation: DE
- 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/DXTA2026082809469

## Discrepancy

WHILE DESCENDING THRU FL350 ENG CNTRL FAULT L EICAS ILLUM IN VMC CONDITIONS. RAN CHKLST. AFTER PUTTING ANTI-ICE ON MESSAGE WENT OUT. AFTER TURNING ANTI-ICE OFF, MESSAGE CAME BACK ON FOR A FEW MINS.  MANUFACTURER RESPONDED WITH ARES SHOWING L-A FADEC HAS THROWN AN HA FAULT CODE,  (ENGINE AT DISAGREES WITH ADC PT). RECOMMEND TROUBLESHOOTING PER THE P&WC EMM FOR FAULT HA. PERFORMED EMM 72-00-02, FADEC FAULT CODES H - P,  FAULT ISOLATION 8 FIM TASK 101 EEC PT INPUT FAULT. PERFORMED STEP 1 OF FIM TASK DOES RESETTING EEC 28V AIRCRAFT POWER WITH THE ENGINES NOT RUNNING CLEAR FAULT. USED ONBOARD MAINT DIAGNOSTIC PAGE TO CHK IF FAULT CODE HA WAS STILL PRESENT, & FAULT CLEARED. MOVED ACFT OUTSIDE & STARTED BOTH ENGS TO TRY AND DUPLICATE FAULT. FAULT WAS NOT ABLE TO BE DUPLICATED. NO DEFECTS NOTED AT THIS TIME.

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