CHI86LA143

NTSB accident investigation · Beech BE-F90 · Eaton, IN · May 20, 1986

Accident · No injuriesLimited investigationFinal report
Date
May 20, 1986, 09:10 local (14:10 UTC)
Place
Eaton, IN
Injuries
5 uninjured
Damage
Substantial damage
Phase of flight
Enroute
Aircraft
N960VBeech BE-F90
Weather
Visual (VMC) · Day
Status
Completed
Report
Approved by Office Director
FAA report
19860520021089A
Case key
13462

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

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Sequence of events

NTSB’s coding before 2008: each occurrence and phase of flight, and the causes and factors under it. The codes are defined in NTSB’s coding manual.

Airframe/component/system failure/malfunctionClimb - to cruise
Door,entrance stair - deployed inadvertentlyCause
Supervision - not performedPilot in commandCause

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
Reported as
Beech BE-F90
Category
Airplane
Serial number
LA-31
Airframe hours
2,022
Engine
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

Matched to the registry by N-number and the event date; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
65
Certificate
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.

Other investigations on N960V · 1

Matched to the same aircraft by N-number and date.