# NTSB CHI84FA076: Beech BE-99, N317VA, Galesburg, IL, January 3, 1984

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Field investigation · Final report
- Date: January 2, 1984, 21:30 local (Jan 3, 1984, 03:30 UTC)
- Place: Galesburg, IL
- Coordinates: 40.950931, -90.36927 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=40.9509&lon=-90.3693&mi=10
- Phase of flight: [Taxi](https://openairdocs.org/ntsb-phases/250) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 11 uninjured
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 12384
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI84FA076
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/12384/pdf
- Page: https://openairdocs.org/ntsb/CHI84FA076

## Sequence of events

In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf).

- Gear collapsed, taxi - to takeoff
  - landing gear,normal retraction/extension assembly - improper (cause)
  - electrical system,electric switch - corroded (cause)

## Analysis

THE MAIN GEAR RETRACTED WHILE THE ACFT WAS BEING TAXIED TO THE TAXIOFF POSITION. INVESTIGATION REVEALED THAT A LANDING GEAR MAINTENANCE VALVE PN22400-1, SN19 MANUFACTURED BY AIRRIGHT INC HAD CORRODED AND WAS ALLOWING STRAY VOLTAGE TO CYCLETHE LANDING GEAR RETRACTION SYSTEM.

## Aircraft

- Registration: [N317VA](https://openairdocs.org/deregistered/N317VA-1989-02-11), registration cancelled 1989-02-11, S/N U72 (OpenAirDocs)
- Reported make and model: BEECH BE-99
- Registry model: [Beech 99](https://openairdocs.org/model/beech-99) (registry code 1154002) (OpenAirDocs)
- Category: Airplane
- Serial number: U72
- Airframe hours: 31687
- Engines: U/A CANADA PT6A-20 550 horsepower turbo prop
- Damage: Substantial damage
- Flight: Part 135
- Operator: Britt Airways, Inc.
- Registered owner: Britt Airways,Inc.
- Airworthiness certificate: Standard, Normal
- Last inspection: Continuous airworthiness, December 31, 1983, 10 hours before
- Destination: SQ1, STERLING, IL
- Flight plan: IFR

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 53; military, airline transport, commercial; airplane ratings: multi-engine land, single-engine land; instrument ratings: airplane; medical: class 1, valid medical--w/ waivers/lim; seat: left; flight hours: 8,639 total, 4,078 in this make and model, 7,056 as pilot in command, 196 in the last 90 days

## Weather

- Conditions: Instrument (IMC), Day
- Wind: 240° at 8 knots, gusting 8
- Lowest ceiling: 400 ft overcast
- Temperature: 25 °F, dew point -0 °F
- Altimeter: 30.00 inHg

## FAA reports on this event (1)

The FAA's own accident and incident reports, matched to the aircraft by N-number and date (OpenAirDocs).

- [Accident 19840102021799A](https://openairdocs.org/incident/19840102021799A), Jan 2, 1984: Beech 99, Galesburg, IL, Substantial damage. Main landing gear retracted as aircraft taxied for takeoff. Corrosion had formed behind maintenance valve PN224001.

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

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