# SDR HEEA0011861

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 10, 1997
- Submitted: March 26, 2000
- Operation: General aviation
- System (JASC): [3416 · Altimeter, Barometric/Encoder](https://openairdocs.org/jasc/3416)
- Part: Encoder
- Part number: A30
- Condition: Defective
- Location: Cockpit Alt
- Component: Ack
- 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/HEEA0011861

## Discrepancy

CANNOT CALIBRATE UNIT.  UNIT DOES NOT HOLD CALIBRATION.  NOTE:  THIS IS THE 4TH TIME THIS UNIT HAS BEEN TO VENDOR FOR THE SAME COMPLAINT.  REFERENCE RO#976965 AND RO#977921.

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