# SDR 97ZZZX1146

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 10, 1997
- Submitted: March 26, 2000
- Operation: General aviation
- Aircraft: N100PD
- Make and model: Cessna 172K
- Registry model: [Cessna 172K](https://openairdocs.org/model/cessna-172k) (OpenAirDocs)
- Aircraft serial: 17257902
- Engine: Lyc O320E2D
- System (JASC): [8530 · Reciprocating Engine Cylinder Section](https://openairdocs.org/jasc/8530)
- Part: Spring
- Part number: SL14995
- Condition: Broken
- Location: Eng Cyl
- Stage of operation: IN
- Nature of condition: W
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/97ZZZX1146

## Discrepancy

RECEIVING INSPECTION OF A NEWLY OVERHAULED ENGINE FOUND PUSH ROD HOUSING COULD BE POPPED OUT OF SEAT.  REMOVED ROCKER COVER AND FOUND HOLD-DOWN SPRING BROKEN.  FURTHER INVESTIGATION FOUND 3 OF 4 PUSH ROD SPRINGS BROKEN.  SUBMITTER SUSPECTS SPRINGS MISMANUFACTURED AND ARE BRITTLE.

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