# SDR 96ZZZX1783

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 12, 1996
- Submitted: March 26, 2000
- Operation: General aviation
- Aircraft: N97LP
- Make and model: Cessna 172P
- Registry model: [Cessna 172P](https://openairdocs.org/model/cessna-172p) (OpenAirDocs)
- Aircraft serial: 17274398
- System (JASC): [7714 · Engine RPM Indicating System](https://openairdocs.org/jasc/7714)
- Part: Tachometer
- Part number: D11125025
- Condition: Sticks
- Location: Eng Tachometer
- Part time: 21 hours
- Component: Mitch
- 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/96ZZZX1783

## Discrepancy

INSTALLED NEW MITCHELL TACHOMETER IN AIRCRAFT.  NEXT MORNING, TACHOMETER WAS STICKING UNTIL A SHORT WARM-UP.  THREE FLIGHTS LATER, STRIKING RECURRED.  AT 21.1 TACHOMETER HOURS, STICKING OCCURRED AGAIN ALONG WITH ERRATIC READINGS.  REPLACED MITCHELL TACHOMETER WITH RECONDITIONED AC UNIT, NO FURTHER PROBLEMS.

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