# SDR 96ZZZX5629

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 28, 1996
- Submitted: March 26, 2000
- Operation: General aviation
- Filed by: [RAM Aircraft, Limited Partnership, repair station VA1R551K](https://openairdocs.org/faa-repair-station/VA1R551K/ram-aircraft-limited-partnership.md) (OpenAirDocs)
- Engine: Cont TSIO520*
- System (JASC): [8530 · Reciprocating Engine Cylinder Section](https://openairdocs.org/jasc/8530)
- Part: Valve Seat
- Part number: 653445
- Condition: Misinstalled
- Location: Exh Valve
- 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/96ZZZX5629

## Discrepancy

CYLINDER EXHAUST SEAT NOT SEATED INTO MACHINED PORTION OF CYLINDER HEAD ALL THE WAY IN.  SUSPECT CAUSE:  UPON INSTALLATION AT FACTORY, SEATS ARE NOT TAPPED IN, BUT DROPPED IN ASSUMING INSTALLED.  SUBMITTER STATED ALWAYS INSPECT NEW CYLINDERS FOR GOOD SEATING OF SEAT INTO CYLINDER.

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