# NTSB CHI84LA126: Beech BE-90, N642DH, Columbus, OH, March 11, 1984

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: March 11, 1984, 01:10 local (06:10 UTC)
- Place: Columbus, OH
- Coordinates: 39.969276, -83.009208 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=39.9693&lon=-83.0092&mi=10
- Phase of flight: [Takeoff](https://openairdocs.org/ntsb-phases/300) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 7 uninjured
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 12558
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI84LA126
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/12558/pdf
- Page: https://openairdocs.org/ntsb/CHI84LA126

## Sequence of events

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

- Loss of control - on ground/water, takeoff - roll/run
  - unsuitable terrain or takeoff/landing/taxi area - selected, pilot in command (cause)
  - airport facilities,runway/landing area condition - slush covered (contributing factor)
  - airport facilities,runway/landing area condition - rough/uneven (contributing factor)
  - airport snow removal - improper, airport personnel (cause)
  - directional control - not possible, pilot in command
  - ground loop/swerve - uncontrolled, pilot in command (cause)
- On ground/water encounter with terrain/water, takeoff
  - terrain condition - snowbank (contributing factor)
- Nose gear collapsed, takeoff
  - landing gear,nose gear - overload

## Analysis

WHILE TAKING OFF ON RWY 27L, THE ACFT CONTACTED A RIDGE OF SNOW AT THE INTERSECTION OF RWY 14, WHERE RWY 14 HAD BEEN PLOWED. AFTER STRIKING THE SNOW, THE ACFT DRIFTED TO THE RIGHT & THE PLT NOTED A REDUCTION OF POWER FROM THE RIGHT ENG. THE RIGHT MAIN GEAR THEN WENT INTO DEEPER SNOW WHICH ACCELERATED THE RIGHT TURN. SUBSEQUENTLY, THE NOSE GEAR ENCOUNTERED AN ICE COVERED DRIFT OFF THE RIGHT SIDE OF THE RWY & COLLAPSED.

## Aircraft

- Registration: [N642DH](https://openairdocs.org/deregistered/N642DH-2014-11-12), registration cancelled 2014-11-12, S/N LJ-420, built 1968 (OpenAirDocs)
- Reported make and model: Beech BE-90
- Registry model: [Beech B90](https://openairdocs.org/model/beech-b90) (registry code 1152912) (OpenAirDocs)
- Registry engine: [U/A Canada PT6 SER 578HP](https://openairdocs.org/engine/u-a-canada-pt6-ser-578hp) (registry code 61501, turbo-prop) (OpenAirDocs)
- Category: Airplane
- Serial number: LJ-420
- Engines: P&W PT6A-20 550 horsepower turbo prop
- Damage: Substantial damage
- Flight: Business, Part 91
- Registered owner: Diamond Airways, Inc.
- Airworthiness certificate: Standard, Normal
- Last inspection: Unknown, January 3, 1984
- Destination: MIA, MIAMI, FL
- Flight plan: IFR
- Airport: OSU, Ohio State University, runway 27L, 5,000 × 100 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 60; airline transport, commercial; airplane ratings: single-engine land, multi-engine land; instrument ratings: airplane; medical: valid medical--no waivers/lim.; seat: left; flight hours: 6,590 total, 5,340 in this make and model, 6,340 as pilot in command, 46 in the last 90 days

## Weather

- Conditions: Instrument (IMC), Night/dark
- Wind: 230° at 15 knots
- Visibility: 2 statute miles
- Lowest ceiling: 1,800 ft overcast
- Temperature: 28 °F, dew point 21 °F
- Altimeter: 29.00 inHg
- Observed at: CMH, 11 nm away

## 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 19840311006889A](https://openairdocs.org/incident/19840311006889A), Mar 11, 1984: Beech B90, Columbus, OH, Substantial damage. Aircraft collided with snow bank during takeoff run which pulled aircraft into deeper snow and collapsed nose wheel

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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