# SDR 2023F00035

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 25, 2023
- Submitted: January 26, 2023
- Operation: General aviation
- Aircraft: [N912SV](https://openairdocs.org/aircraft/N912SV), registered now
- Make and model: Beech B200
- Registry model: [Beech B200](https://openairdocs.org/model/beech-b200) (OpenAirDocs)
- Aircraft serial: BB1299
- Aircraft time: 15,322 hours, 17,581 cycles
- System (JASC): [3416 · Altimeter, Barometric/Encoder](https://openairdocs.org/jasc/3416)
- Part: Altimeter
- Part number: 6223975007
- Part serial: 4701
- Condition: Faulted
- Stage of operation: CR
- How discovered: O
- Nature of condition: P
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2023F00035

## Discrepancy

APPROXIMATELY 45 MINUTES AFTER DEPARTING KBIL WHILE IN CRUISE FLIGHT, THE CREW OBSERVED THE PILOTS ALTIMETER CLIMBING RAPIDLY WITHOUT STOPPING. THE CREW RETURNED TO KBIL WITHOUT INCIDENT. MAINTENANCE REPLACED THE PILOTS ALTIMETER WITH AN OVERHAULED UNIT AND OPS CHECK GOOD.

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