# SDR 98ZZZX4060

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 27, 1998
- Submitted: March 26, 2000
- Operation: General aviation
- Aircraft: N6894B
- Make and model: Piper PA-18A 150
- Registry model: [Piper PA-18A 150](https://openairdocs.org/model/piper-pa-18a-150) (OpenAirDocs)
- Aircraft serial: 185087
- System (JASC): [7160 · Engine Air Intake System](https://openairdocs.org/jasc/7160)
- Part: Valve
- Condition: Separated
- Location: Carburetor
- Stage of operation: NR
- Nature of condition: Y
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/98ZZZX4060

## Discrepancy

ENGINE STOPPAGE AND FORCED LANDING OFF AIRPORT OCCURRED WHEN THE BUTTERFLY VALVE IN THE CARBURETOR HEAT AIRBOX SEPARATED FROM ITS SHAFT AND BLOCKED OFF AIR FLOW TO CARBURETOR/ENGINE.

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