# SDR CHIR201410151754

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 14, 2014
- Submitted: October 15, 2014
- Operation: General aviation
- Aircraft: [N242CH](https://openairdocs.org/aircraft/N242CH), registered now
- Make and model: Boeing 234
- Registry model: [Boeing 234](https://openairdocs.org/model/boeing-vertol-234) (OpenAirDocs)
- Aircraft serial: MJ023
- System (JASC): [6322 · Rotorcraft Cooling Fan System](https://openairdocs.org/jasc/6322)
- Part: Case
- Part number: 234D52421
- Part serial: M133
- Condition: Cracked
- Location: Transmission
- Component: Transmission, Boeing, NA
- Component part number: 234D52005
- Stage of operation: NR
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CHIR201410151754

## Discrepancy

CASE ASSEMBLY AT WEB OR LINER 247 HAS INDICATION OF A CRACK APPROXIMATELY 1.5" LONG. CRACK AT HOUSING IN PREVIOUS WELD REPAIR LOCATED NEAR ROTOR BRAKE HOUSING SUPPORT BORE.  CRACK IS LOCATED ON OUTSIDE OF HOUSING.

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