# SDR CA040614007

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 11, 2004
- Submitted: December 3, 2004
- Operation: General aviation
- Make and model: Dhav DHC8301
- Aircraft time: 33,080 hours
- Engine: Pwa PW123
- Propeller: Hamstd 14SF15
- System (JASC): [7500 · Engine Bleed Air System](https://openairdocs.org/jasc/7500)
- Part: Bellows
- Condition: Cracked
- Location: Bleed System
- Part time: 33,393 hours, 43,340 cycles
- Stage of operation: IN
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CA040614007

## Discrepancy

(CAN) WHEN TAXING FOR DEPARTURE BOTH ENGINES WENT TO MANUAL MODE ON ECU. MAINTENANCE INSPECTION FOUND ECU'S HAD GONE TO MANUAL DUE TO IN EXCESS OF 49 DEG C ON SAT AIR PROBE.  FURTHER INSPECTION FOUND CROSSOVER BLEED PIPE ABOVE FUESLAGE JUST FORWARD OF DORASL FIN HAD CRACKED BELLOWS LEAKING HIGH TEMP BLEED AIR INTO WING CENTER SECTION , HEATING SAT AIR PROBE FROM THE BACK SIDE.  BLEED PIPE REPLACED.  AIRCRAFT RETURNED TO SERVICE.

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