# NTSB CHI86LA143: Beech BE-F90, N960V, Eaton, IN, May 20, 1986

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: May 20, 1986, 09:10 local (14:10 UTC)
- Place: Eaton, IN
- Coordinates: 40.33905, -85.349403 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=40.3391&lon=-85.3494&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 5 uninjured
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 13462
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI86LA143
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/13462/pdf
- Page: https://openairdocs.org/ntsb/CHI86LA143

## Sequence of events

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

- Airframe/component/system failure/malfunction, climb - to cruise
  - door,entrance stair - deployed inadvertently (cause)
  - supervision - not performed, pilot in command (cause)

## Analysis

THE ACFT HAD MADE A STOP AT MUNCIE TO PICK UP A FOURTH PASSENGER. AFTER BOARDING, THE PASSENGER CLOSED THE CABIN DOOR. AFTER DEPARTURE AND CLIMBING THRU 6,000 FT THE AIRSTAIR SEPARATED FROM THE AIRCRAFT AND STRUCK THE VERTICAL STABILIZER.

## Aircraft

- Registration: [N960V](https://openairdocs.org/deregistered/N960V-2021-04-17), registration cancelled 2021-04-17, S/N LA-31, built 1980 (OpenAirDocs)
- Reported make and model: BEECH BE-F90
- Registry model: [Beech F90](https://openairdocs.org/model/beech-f90) (registry code 1152909) (OpenAirDocs)
- Registry engine: [Pratt & Whitney Canada PT6A-135](https://openairdocs.org/engine/pratt-whitney-canada-pt6a-135) (registry code 52173, turbo-prop) (OpenAirDocs)
- Category: Airplane
- Serial number: LA-31
- Airframe hours: 2022
- Engines: P&W PT6A 750 lbs thrust turbo prop
- Damage: Substantial damage
- Flight: Business, Part 91
- Registered owner: Asphalt Materials & Const. Inc
- Last inspection: Annual, April 5, 1986, 63 hours before
- Departed: MIE, MUNCIE, IN
- Destination: IAD, WASHINGTON, DC
- Flight plan: IFR

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 65; commercial; airplane ratings: single-engine land, multi-engine land; instrument ratings: airplane; medical: class 2, valid medical--no waivers/lim.; seat: left; flight hours: 8,438 total, 8,438 in this make and model

## Weather

- Conditions: Visual (VMC), Day
- Wind: 310° at 8 knots
- Visibility: 7 statute miles
- Lowest ceiling: 2,500 ft overcast
- Temperature: 48 °F, dew point 45 °F
- Altimeter: 30.00 inHg
- Observed at: IND, 40 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 19860520021089A](https://openairdocs.org/incident/19860520021089A), May 20, 1986: Beech F90, Eaton, IN, Substantial damage. The passenger door separated from the aircraft on climbout. The pilot failed to ensure door was properly secured.

## Other investigations on N960V (1)

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.

- [NTSB ERA20LA192](https://openairdocs.org/ntsb/ERA20LA192), May 18, 2020: Beech F90 (N960V), Knoxville, TN, substantial damage. Probable cause: A failure of the left main landing gear scissors, which resulted in a landing gear collapse following a precautionary landing with the landing gear in an intermediate position..

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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