Beechcraft V35B N699T

Summary

On 18 August 1989 at about 19:00 local time, a Beechcraft V35B registered N699T, operated by Graebner, Walter D., was involved in an accident near Concord, Arkansas, United States. 2 people were on board and nobody was injured. The aircraft was substantially damaged. The NTSB has published a probable cause for this accident; it is quoted in full below.

Date

18 August 1989 at 19:00

Classification

Accident

Location

Concord, Arkansas, United States

Coordinates

35.6594, -91.8410

Aircraft

Beechcraft V35B

Registration

N699T

Category

Airplane

Engines

1

Operator

Graebner, Walter D.

Operating rule

Part 91: General Aviation

Purpose of flight

Personal

Phase of flight

Not recorded

Route

Olive Branch → Rogers

Aircraft damage

Substantial

Weather

VMC

Light

Day

NTSB number

MKC89LA187

Nobody was injured.

IMPROPER INSTALLATION OF THE ALTERNATOR WIRING HARNESS BY THE PILOT/OWNER WHICH RESULTED IN CHAFED WIRING AND A SUBSEQUENT ELECTRICAL FIRE. THE UNEVEN TERRAIN WAS A CONTRIBUTING FACTOR.

Quoted verbatim from the NTSB record. This site does not paraphrase or interpret it.

Read the full NTSB narrative

THE PILOT/OWNER SAID THAT WHILE CLIMBING THROUGH 9000 FT MSL FOR 10,000 FT MSL, ON AN IFR FLIGHT PLAN, HE SMELLED AN ELECTRICAL ODOR. THE CABIN BEGAN TO FILL WITH DENSE SMOKE, SO HE SHUT OFF ALL ELECTRICAL SWITCHES. AN EMERGENCY DESCENT WAS MADE. DURING THE DESCENT, THE SMOKE WAS SUBSTANTIALLY CLEARED FROM THE CABIN. THE LANDING GEAR WAS EXTENDED BY USING EMERGENCY PROCEDURES. WHILE LANDING ON ROLLING TERRAIN, THE GEAR COLLAPSED & THE ACFT WAS DAMAGED. THERE WAS NO CONTINUATION OF FIRE ON THE GROUND. A POST-ACDNT INVESTIGATION REVEALED THE OWNER HAD IMPROPERLY INSTALLED AN ALTERNATOR WIRING HARNESS, WHICH RUBBED ON THE NOISE SUPPRESSOR. AFTER IT RUBBED THRU THE INSULATION, AN ELECTRICAL FIRE ERUPTED.

Quoted verbatim from the NTSB record.