# SDR 9JLA2023012732465

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 24, 2023
- Submitted: January 27, 2023
- Operation: Air carrier
- Aircraft: [N420EH](https://openairdocs.org/aircraft/N420EH), registered now
- Make and model: Cessna 525A
- Registry model: [Cessna 525A](https://openairdocs.org/model/cessna-525a) (OpenAirDocs)
- Aircraft serial: 525A0027
- Aircraft time: 5,330 hours, 3,940 cycles
- System (JASC): [7500 · Engine Bleed Air System](https://openairdocs.org/jasc/7500)
- Part: Precooler
- Part number: 99144024
- Part serial: S4883T0736
- Condition: Defective
- Location: Rt Bleed Sys
- Stage of operation: CL
- 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/9JLA2023012732465

## Discrepancy

THE FLIGHT CREW REPORTED A RIGHT BLEED AIR OVERHEAT WARNING INDICATION DURING FLIGHT. THEY STATED THAT THE WARNING IS ILLUMINATED ABOVE 100% ENGINE POWER AND EXTINGUISHES AT BELOW 98% POWER. THE MAINTENANCE CREW DETERMINED THE RIGHT BLEED AIR PRECOOLER WAS DEFECTIVE REQUIRING IT TO BE REPLACED. AN OVERHAULED PRE-COOLER WAS INSTALLED OPS AND LEAK CHECKS WERE PERFORMED AND FOUND TO BE SATISFACTORY. THE AIRCRAFT WAS RETURNED TO SERVICE.

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