# SDR 98ZZZX443

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 6, 1998
- Submitted: March 26, 2000
- Operation: General aviation
- Aircraft: N54320
- Make and model: Cessna 172P
- Registry model: [Cessna 172P](https://openairdocs.org/model/cessna-172p) (OpenAirDocs)
- Aircraft serial: 17274955
- System (JASC): [3411 · Pitot/Static System](https://openairdocs.org/jasc/3411)
- Part: Pitot Tube
- Part number: S10711
- Condition: Leaked
- Location: Airspeed
- Stage of operation: NR
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/98ZZZX443

## Discrepancy

PILOT REPORTED LOW AIRSPEED INDICATION.  PITOT SYSTEM WAS PRESSURE CHECKED AND FOUND TO HAVE A LEAK.  FOUND PITOT HEAT WIRING CHAFED/MELTED INTO PITOT PRESSURE TUBE APPROXIMATELY 3 INCHES ABOVE CONNECTOR.  REPLACED TUBING AND SYSTEM PITOT HEAT WIRING SECURED AWAY FROM TUBING.  NOTE:  2 DAYS LATER DURING AN ANNUAL INSPECTION OF ANOTHER 172, FOUND THE SAME PROBLEM, EXCEPT IT APPEARED THAT HEAT FROM THE WIRING HAD MELTED THE TUBING HALF-WAY THROUGH.  THE SYSTEM STILL HELD GOOD PRESSURE.

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