# SDR DXTA2023101898200

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 17, 2023
- Submitted: October 19, 2023
- Operation: Air carrier
- Aircraft: [N638QS](https://openairdocs.org/aircraft/N638QS), registered now
- Make and model: Cessna 680A
- Registry model: [Cessna 680A](https://openairdocs.org/model/cessna-680a) (OpenAirDocs)
- Aircraft serial: 680A0330
- Aircraft time: 1,070 hours, 705 cycles
- System (JASC): [2421 · AC Generator-Alternator](https://openairdocs.org/jasc/2421)
- Part: Generator
- Part number: 99144431
- Part serial: 965
- Condition: Faulted
- Location: Lt Engine
- Stage of operation: LD
- How discovered: C
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DXTA2023101898200

## Discrepancy

WINDSHIELD HEAT INOP L   AMBER CAS MESSAGE ILLUMINATED, FOLLOWED BY (5 MIN) BY FIRE DETECT L,   FOLLOWED BY  (5 MIN) HYD VOL LOW FOLLOWED BY HYD PRESS LOW R L .  FOLLOWED CHECKLIST PROCEDURES FOR EACH MESSAGE AS THEY ILLUMINATED. BLEW DOWN LANDING GEAR PER CHECKLIST AND LANDED UNEVENTFULLY.  REMOVED AC GENERATOR OFF P/N: 9914443-1, OFF S/N: 965 AND FOUND THE SHAFT SHEARED OFF. INSTALLED OVERHAULED AC GENERATOR PN: 9914443-1, SN: 603 ON LEFT ENGINE. OPS CHECKS GOOD. IAW CE-680A AMM 24-20-05.

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