# Incident 19890401021469I: Cessna 402C, Waterville, ME, April 1, 1989

- Type: FAA incident report (Accident/Incident Data System), as reported
- Date: April 1, 1989, 10:55 local time
- Place: Waterville, ME
- Airport: Waterville Robert Lafleur
- Phase of flight: Final Approach-IFR
- Operating rules: General operating rules (Part 91)
- Location: 44.5332° N, 69.6755° W: Placed by OpenAirDocs at Waterville Robert Lafleur Airport (WVL), within about a mile (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=44.5332&lon=-69.6755&mi=10
- Aircraft: N6841R, a cancelled registration (https://openairdocs.org/deregistered/N6841R-2017-04-18) (OpenAirDocs)
- Registry model: Cessna 402C (registry code 207590R, https://openairdocs.org/model/cessna-402c) (OpenAirDocs)
- Registry engine: TCM Cont TSIO-520 series (registry code 17060, https://openairdocs.org/engine/tcm-cont-tsio-520-series) (OpenAirDocs)
- Reported make and model: CESSNA 402C
- Reported engine: CONT TSIO520VB
- People aboard: 2
- Fatal injuries: 0
- Pilot flight hours: 3,400 total, 900 in this make and model, 70 in the last 90 days
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/19890401021469I

## Narrative

As the FAA filed it, in capitals; the FAA replaces private details with ^PRIVACY DATA OMITTED^.

MALFUNCTIONING ALTITUDE ENCODER CAUSED ERRONEOUS ALTITUDE READOUT. PILOT WENT BELOW ASSIGNED ALTITUDE.

From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. For accidents, the NTSB's own investigation is the fuller record.

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