# SDR 2006FA0001064

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 12, 2006
- Submitted: November 13, 2006
- Operation: General aviation
- Aircraft: [N776SH](https://openairdocs.org/aircraft/N776SH), registered now
- Make and model: Robsin R22BETA
- Aircraft serial: 3552
- Engine: Lyc O360J2A
- System (JASC): [8530 · Reciprocating Engine Cylinder Section](https://openairdocs.org/jasc/8530)
- Part: Rocker
- Part number: 17F19357
- Condition: Cracked
- Location: Nr 4 Cylinder
- Stage of operation: NR
- How discovered: O
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2006FA0001064

## Discrepancy

NR 4 CYLINDER INTAKE ROCKER ARM CRACKED/SPLIT INTO 2 PIECES.  CRACK/ SPLIT RUNS CROSS-WAYS NEAR ROCKER BOSS ON VALVE STEM SIDE OF ROCKER ARM.  AGGRESSIVE MACHINING OF ROCKER ARM AND OR ROCKER ARM INCORRECTLY CONTACTING KEEPER SPRING ASSEMBLY.  (K)

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