# SDR DXTA2026050707950

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 5, 2026
- Submitted: May 7, 2026
- Operation: Air carrier
- Aircraft: [N584QS](https://openairdocs.org/aircraft/N584QS), registered now
- Make and model: Cessna 680A
- Registry model: [Cessna 680A](https://openairdocs.org/model/cessna-680a) (OpenAirDocs)
- Aircraft serial: 680A0139
- Aircraft time: 6,913 hours, 4,649 cycles
- Engine: Pwc PW306D1
- System (JASC): [7510 · Engine Anti-Icing System](https://openairdocs.org/jasc/7510)
- Part: Anti-Ice Valve
- Part number: 99145216
- Part serial: 1768
- Condition: Faulted
- Location: Engine
- 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/DXTA2026050707950

## Discrepancy

DURING DESCENT WE SELECTED ALL A/I SYSTEMS ON FOR ICING CONDITIONS.  ALL SYSTEMS OPERATED NORMALLY.  UPON EXITING ICING CONDITIONS AT FL270, SELECTED ALL A/I SYSTEMS OFF.  ABOUT 3 MINUTES AFTER SELECTING ALL A/I OFF, WE RECEIVED A/I ENGINE HOT R.  ACCOMPLISHED A/I ENGINE HOT QRH. THE A/I ENGINE HOT R MESSAGE DID NOT CLEAR UNTIL STEP 4, WHEN SELECTING LP ON THE RIGHT SIDE. CORRECTIVE ACTION: REMOVED #2 ENGINE INLET ANTI ICE VALVE PN: 9914521-6 SN: 1768 DUE TO WEAR AND REPLACED WITH OVERHAULED VALVE PN: 9914521-6 SN:1616. WORK PERFORMED IAW: CESSNA 680A AMM 30-20-05. LEAK AND OPS CHECK GOOD WITH NO FURTHER DEFECTS

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