# NTSB ATL91FA116: Beech 95-B55, N36743, Irmo, SC, June 21, 1991

- Type: NTSB accident investigation
- Classification: Accident · Fatal · Field investigation · Final report
- Date: June 21, 1991, 09:00 local (13:00 UTC)
- Place: Irmo, SC
- Coordinates: 34.089439, -81.179267 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=34.0894&lon=-81.1793&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: Fatal
- Injuries: 1 fatal
- Status: Completed, report January 25, 1993
- Report: Approved by Office Director
- NTSB case key (mKey): 8326
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ATL91FA116
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/8326/pdf
- Page: https://openairdocs.org/ntsb/ATL91FA116

## Probable cause

THE LOSS OF CONTROL OF THE AIRCRAFT FOR UNDETERMINED REASON(S).

## Sequence of events

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

- Loss of control - in flight, cruise
  - reason for occurrence undetermined (cause)
- In flight collision with object, descent - uncontrolled
  - object - tree(s)
  - object - residence
- In flight collision with terrain/water, descent - uncontrolled

## Analysis

THE FLIGHT DEPARTED THE COLUMBIA, SOUTH CAROLINA AIRPORT ON AN IFR FLIGHT PLAN  TO GREER, SOUTH CAROLINA. THE WEATHER AT THE TIME WAS VFR. THE PILOT DID NOT REPORT ANY PROBLEMS TO AIR TRAFFIC CONTROL PRIOR TO THE CRASH, AND ALL RADIO CONVERSATION WITH THE PILOT WAS NORMAL. RADAR DATA SHOWED THE AIRCRAFT CLIMBED TO 4000 FEET AND LEVELED OFF AT THAT ALTITUDE FOR A BRIEF PERIOD. THE AIRCRAFT THEN BEGAN A SHALLOW  DESCENT AND DISAPPEARED FROM THE RADAR. THE PILOT DID NOT RESPOND TO RADIO CALLS AFTER THE DESCENT BEGAN. THE AIRCRAFT CRASHED INTO A RESIDENTIAL AREA ABOUT NINE  MILES FROM THE COLUMBIA AIRPORT. THE WRECKAGE WAS DISTRIBUTED OVER AN AREA ABOUT 300 FEET IN LENGTH. THERE WAS NO EVIDENCE OF MALFUNCTION OF THE AIRCRAFT FLIGHT CONTROLS OR CATASTROPHIC ENGINE FAILURE PRIOR TO THE CRASH. WITNESSES REPORTED THE AIRCRAFT WAS IN A NOSE DOWN ATTITUDE OF ABOUT 30 DEGREES PRIOR TO THE IMPACT. THE PILOT HAD IN EXCESS OF 2000 HOURS OF FLIGHT TIME, AND HAD FLOWN AIRCRAFT PREVIOUSLY IN THE MILITARY.

## Aircraft

- Registration: [N36743](https://openairdocs.org/deregistered/N36743-2013-03-25), registration cancelled 2013-03-25, S/N TC-2335, built 1980 (OpenAirDocs)
- Reported make and model: BEECH 95-B55
- Registry model: [Beech 95-B55 (T42A)](https://openairdocs.org/model/beech-95-b55-t42a) (registry code 1152706) (OpenAirDocs)
- Registry engine: [Continental I0-470 series](https://openairdocs.org/engine/continental-i0-470-series) (registry code 17027, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: TC2335
- Airframe hours: 1182
- Engines: CONTINENTAL IO-470 260 horsepower reciprocating
- Damage: Destroyed
- Flight: Business, Part 91
- Operator: Cubco,Inc.
- Registered owner: Cubco,Inc.
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, June 1, 1991, 4 hours before
- Departed: CAE, COLUMBIA, SC
- Destination: GSP, GREER, SC
- Flight plan: IFR

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 55; commercial; airplane ratings: single-engine land, multi-engine land; instrument ratings: airplane; medical: class 2, valid medical--w/ waivers/lim; seat: left; toxicology performed; flight hours: 2,386 total, 4 in this make and model, 2,037 as pilot in command, 33 in the last 90 days, 12 in the last 30 days

## Weather

- Conditions: Visual (VMC), Day
- Wind: 270° at 4 knots
- Visibility: 6 statute miles
- Lowest ceiling: none
- Temperature: 81 °F, dew point 75 °F
- Altimeter: 29.00 inHg
- Observed at: CAE, 9 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 19910621023279A](https://openairdocs.org/incident/19910621023279A), Jun 21, 1991: Beech 95B55, Irmo, SC, Destroyed, 1 fatal. Dived into trees in residential area. No attempt to avoid collision. No mechanical or physical cause noted.

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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