# SDR 9JLA2021110217454

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 22, 2021
- Submitted: November 2, 2021
- Operation: Air carrier
- Aircraft: N44CD
- Make and model: Cessna 560XL
- Registry model: [Cessna 560XL](https://openairdocs.org/model/cessna-560xl) (OpenAirDocs)
- Aircraft serial: 5605624
- Aircraft time: 5,599 hours, 4,738 cycles
- System (JASC): [7510 · Engine Anti-Icing System](https://openairdocs.org/jasc/7510)
- Part: Sensor
- Part number: 1173T0759
- Part serial: 3264
- Condition: Defective
- Location: Eng Anti Ice
- Stage of operation: CR
- How discovered: O
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/9JLA2021110217454

## Discrepancy

THE FLIGHT CREW REPORTED THAT DURING FLIGHT WHEN ENGINE ANTI-ICE WAS SELECTED ON AND WHEN TURNED OFF THE LEFT ENGINE ANTI-ICE INDICATION WOULD REMAIN ON FOR AN ADDITIONAL 20 MINUTES BEFORE EXTINGUISHING. THE MAINTENANCE VENDOR TROUBLESHOT AND DETERMINED THE LEFT ENGINE TEMPERATURE SWITCH/SENSOR WAS DEFECTIVE AND WAS REPLACED WITH A NEW UNIT. OPS CHECKS WERE SATISFACTORY AND THE AIRCRAFT WAS RETURNED TO SERVICE.

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