# SDR 2014FA0000598

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 25, 2014
- Submitted: October 10, 2014
- Operation: General aviation
- Aircraft: [N37WA](https://openairdocs.org/aircraft/N37WA), registered now
- Make and model: Bell 206B-3
- Registry model: [Bell 206B-3](https://openairdocs.org/model/bell-helicopter-textron-206b-3) (OpenAirDocs)
- Aircraft serial: 3433
- Engine: Allsn 250C20B
- System (JASC): [7240 · Turbine Engine Combustion Section](https://openairdocs.org/jasc/7240)
- Part: Combustion Case
- Part number: 6870992
- Part serial: 27444B
- Condition: Cracked
- Location: Engine
- 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/2014FA0000598

## Discrepancy

PILOT STATED THE TOT HAS INCREASED 30+ DEGREES C FROM THE NORMAL CRUISE OPERATING TEMPERATURE.  NO DEGRADATION IN POWER WAS MENTIONED OR NOTED.  ON INSPECTION, FOUND A 2.75 INCH CRACK ON THE RT SIDE OF THE OUTER COMBUSTION CASE JUST BELOW THE SPLIT WELD LINE WHERE IT TURNS FROM THE TRANSFER TUBE SOCKET,  THROUGH THE RE-ENFORCEMENT PATCH TO JUST BELOW THE WELD LINE FOR THE MOUNTING FLANGE.  THE TURBINE HAD 3429 HOURS SINCE O/H.

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