# NTSB ATL84FA298: Beech V35B, N6740Z, Mc Cormick, SC, September 26, 1984

- Type: NTSB accident investigation
- Classification: Accident · Fatal · Field investigation · Final report
- Date: September 26, 1984, 17:15 local (21:15 UTC)
- Place: Mc Cormick, SC
- Coordinates: 33.909984, -82.2901 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=33.9100&lon=-82.2901&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: Fatal
- Injuries: 1 fatal
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 6305
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ATL84FA298
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/6305/pdf
- Page: https://openairdocs.org/ntsb/ATL84FA298

## Sequence of events

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

- Airframe/component/system failure/malfunction, cruise - normal
  - flight control,ruddervator - overload (cause)
  - flight controls - improper use of, pilot in command
  - design stress limits of aircraft - exceeded (contributing factor)
- In flight collision with terrain/water, descent - uncontrolled
  - terrain condition - ground

## Analysis

N6740Z, A BEECH V35B ACFT,SEPARATED IN FLT OVER MCCORMICK, SC WHILE OPERATING IN VFR CONDITIONS. THE INVESTIGATION FAILED TO LOCATE WITNESSES WHO OBSERVED THE FLT PRIOR TO & DURING THE INFLIGHT SEPARATION. WITNESSES ON THE GROUND HEARD THE ACFT & OBSERVED PIECES OF THE ACFT FALLING OVER A LARGE AREA. EXAMINATION OF THE WRECKAGE FAILED TO REVEAL ANY ACFT SYSTEM FAILURE ON MALFUNCTION. HOWEVER, THE RT & LT STABILIZERS & RUDDERVATOR EXHIBITED EVIDENCE OF GROSS NEGATIVE OVERLOAD.

## Aircraft

- Registration: [N6740Z](https://openairdocs.org/deregistered/N6740Z-1985-03-28), registration cancelled 1985-03-28, S/N D-10339 (OpenAirDocs)
- Reported make and model: BEECH V35B
- Registry model: [Beech V35B](https://openairdocs.org/model/beech-v35b) (registry code 1151548) (OpenAirDocs)
- Category: Airplane
- Serial number: D-10339
- Airframe hours: 888
- Engines: CONTINENTAL IO-520-BB 258 horsepower reciprocating
- Damage: Destroyed
- Flight: Business, Part 91
- Registered owner: Air Travel Services
- Airworthiness certificate: Standard, Utility
- Last inspection: Annual, July 3, 1984, 42 hours before
- Departed: FLORENCE, SC
- Destination: PDK, ATLANTA, GA

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 33; commercial; instrument ratings: airplane; medical: class 2, valid medical--w/ waivers/lim; seat: left; toxicology performed; flight hours: 651 total, 320 in this make and model, 20 in the last 90 days

## Weather

- Conditions: Visual (VMC), Day
- Wind: 40° at 4 knots
- Visibility: 15 statute miles
- Lowest ceiling: none
- Temperature: 90 °F, dew point 61 °F
- Altimeter: 29.00 inHg
- Observed at: A6, 30 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 19840926051399A](https://openairdocs.org/incident/19840926051399A), Sep 26, 1984: Beech STC35, Mccormick, SC, Destroyed. Airframe failure in flight. No determination as to cause.

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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