# SDR 96ZZZX3083

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 21, 1995
- Submitted: March 26, 2000
- Operation: General aviation
- Aircraft: [N37404](https://openairdocs.org/aircraft/N37404), registered now
- Make and model: Cessna 421C
- Registry model: [Cessna 421C](https://openairdocs.org/model/cessna-421c) (OpenAirDocs)
- Aircraft serial: 421C0339
- Engine: Cont GTSIO520L
- System (JASC): [8530 · Reciprocating Engine Cylinder Section](https://openairdocs.org/jasc/8530)
- Part: Sleeve
- Part number: 640501
- Condition: Air Leak
- Location: Nr 3 Cylinder
- Part time: 19 hours
- Stage of operation: IN
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/96ZZZX3083

## Discrepancy

PILOT REPORTED HAVING A LOW FUEL FLOW INDICATION.  INSPECTION REVEALED AN AIR LEAK IN THE UPPER DECK, NR 3 CYLINDER SLEEVE, WHERE THE SHAFT AND BLOCK CONNECT.  SUBMITTER RECOMMENDS VISUAL INSPECTION AND IF NECESSARY, PART REPLACEMENT.

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