# SDR 2000ZZZX49

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 17, 1999
- Submitted: March 26, 2000
- Operation: General aviation
- Aircraft: [N20345](https://openairdocs.org/aircraft/N20345), registered now
- Make and model: Cessna 172M
- Registry model: [Cessna 172M](https://openairdocs.org/model/cessna-172m) (OpenAirDocs)
- Aircraft serial: 17261208
- Engine: Lyc O320E2D
- System (JASC): [7322 · Fuel Control/Reciprocating Engines](https://openairdocs.org/jasc/7322)
- Part: Screw
- Condition: Loose
- Location: Carburetor
- Component: Facet, MA4SPA105217
- 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/2000ZZZX49

## Discrepancy

DURING SCHEDULED INSPECTION, CARBURETOR THROTTLE BODY TO BOWL SCREWS WERE FOUND LOOSE.  REMOVED FROM ENGINE, INSPECTION REVEALED NO FURTHER DEFECTS.  NEW GASKET AND LOCKING TABS INSTALLED.  CAUSE: POSSIBLE GASKET SHRINKAGE OR UNDERTORQUE OF SCREWS.  SUSPECT GASKET SHRINKAGE AS LOCK TABS WERE BENT TO LOCK SCREWS.

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