# SDR 97ZZZX1320

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 1, 1997
- Submitted: March 26, 2000
- Operation: General aviation
- Aircraft: [N84PG](https://openairdocs.org/aircraft/N84PG), registered now
- Make and model: Scwzer G164A
- Aircraft serial: 1536
- System (JASC): [7713 · Manifold Pressure (MP) Indicating](https://openairdocs.org/jasc/7713)
- Part: Gauge
- Condition: Reads Low
- Location: Manifold Press
- 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/97ZZZX1320

## Discrepancy

INVESTIGATION FOR CONTINUING CYLINDER PROBLEMS, CRACKS, ETC., FOUND MANIFOLD PRESSURE GAUGE READING LOW.  VERIFIED INCORRECT READING PER BARO PRESSURE.  SUSPECT OVERBOOST OF CYLINDERS DUE TO INCORRECT MP GAUGE READING.

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