# SDR CWQA071203

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 12, 2007
- Submitted: January 15, 2008
- Operation: Air carrier
- Aircraft: N725SC
- Make and model: Lear 60LEAR
- Aircraft serial: 083
- Aircraft time: 3,748 hours, 2,614 cycles
- System (JASC): [3000 · Ice/Rain Protection System](https://openairdocs.org/jasc/3000)
- Part: Bypass Valve
- Part number: 2744148513
- Part serial: 9AL44
- Condition: Inoperative
- Location: Anti-Ice Sys
- Stage of operation: CR
- How discovered: O
- Nature of condition: J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CWQA071203

## Discrepancy

DURING CRUISE FLIGHT BOTH BLEED AIR OVERHEAT LIGHT ILLUMINATED. CREW DIVERTED TO KDEN. DURING MAINTENANCE, LEFT ENGINE ANTI-ICE BYPASS VALVE WAS FOUND DEFECTIVE. VALVE WAS REPLACED IN ACCORDANCE TO AIRCRAFT MAINTENANCE MANUAL AND RETUNED TO SERVICE.

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