# SDR 2015F00015

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 19, 2014
- Submitted: December 23, 2014
- Operation: General aviation
- Make and model: Cvac 34070
- Aircraft time: 10,687 hours
- Engine: Pwa R2800CB16
- Engine time: 142 hours
- Propeller: Hamstd 43E60
- System (JASC): [8530 · Reciprocating Engine Cylinder Section](https://openairdocs.org/jasc/8530)
- Part: Cylinder Head
- Part number: 327628
- Part serial: 38364
- Condition: Cracked
- Location: Engine
- Part time: 142 hours
- Stage of operation: CL
- How discovered: V
- Nature of condition: K, R
- Precautionary procedure: E
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2015F00015

## Discrepancy

DURING CLIMB THE NR 2 ENGINE BEGAN MAKING A POPPING NOISE AND THE MANIFOLD AND BMEP READINGS WERE WIDELY FLUCTUATING.  CREW NOTICED A SLIGHT DROP IN THE ENGINE OIL LEVEL ON THE NR 2 ENGINE.  THE CREW ELECTED TO PERFORM A PRECAUTIONARY SHUTDOWN ON THE NR 2 ENGINE.  UPON INSPECTION OF THE ENGINE, THE MAINTENANCE CREW DICOVERED THE NR 1 CYLINDER WAS CRACKED.  TIS CAUSED A SLIGHT LOSS OF POWER AND SLIGHT LOSS OF ENGINE OIL.

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