# SDR 20000504SH004

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 9, 2000
- Submitted: May 4, 2000
- Operation: General aviation
- Aircraft: [N4145X](https://openairdocs.org/aircraft/N4145X), registered now
- Make and model: Piper PA-28-181
- Registry model: [Piper PA-28-181](https://openairdocs.org/model/piper-pa-28-181) (OpenAirDocs)
- Aircraft serial: 2843152
- System (JASC): [3416 · Altimeter, Barometric/Encoder](https://openairdocs.org/jasc/3416)
- Part: Sensor
- Condition: Leaking
- Location: Altimeter Sys
- Part time: 1,177 hours
- Component: Alt/Encoder, Narco
- Component part number: AR850
- Stage of operation: NR
- How discovered: V
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/20000504SH004

## Discrepancy

STATIC SYSTEM LEAK GREATER THAN 100 FEET/MINUTE TRACED TO THIS UNIT.  AR850 ONLY TWO YEARS IN SERVICE SINCE AIRCRAFT WAS NEW.  AR850''S ARE NOT KNOWN TO BE FAULTY IN THIS MANNER.  SUBMITTER STATED POSSIBLE NARCO FACTORY DEFECT IN ASSEMBLY OF SENSOR.   (X)

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