Dassault DA-10 FBYCV

Summary

On 26 August 1993 at about 20:30 local time, a Dassault DA-10 registered FBYCV, operated by BAC Inc., was involved in an accident near Hailey, Idaho, 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

26 August 1993 at 20:30

Classification

Accident

Location

Hailey, Idaho, United States

Nearest airport

Friedman Memorial Airport (SUN)

Coordinates

43.5708, -114.2092

Aircraft

Dassault DA-10

Registration

FBYCV

Category

Airplane

Engines

2

Operator

BAC Inc.

Operating rule

Part 91: General Aviation

Purpose of flight

Personal

Phase of flight

Not recorded

Route

Great Falls → Unknown

Aircraft damage

Substantial

Weather

VMC

Light

Day

NTSB number

SEA93FA186

Nobody was injured.

THE PILOT-IN-COMMAND'S IMPROPER PROCEDURES. FACTORS INCLUDE FAILURE OF AN ELECTRICAL RELAY, INOPERATIVE THRUST REVERSER, POOR CREW COORDINATION, AND THE SECOND-IN-COMMAND'S IMPROPER PROCEDURES.

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

Read the full NTSB narrative

BECAUSE OF THE FAILURE OF THE THRUST REVERSER RELAY CIRCUIT BOARD, THE THRUST REVERSERS FAILED TO DEPLOY WHEN SELECTED BY THE PILOT. BECAUSE THE REVERSERS FAILED TO DEPLOY, THE 'REVERSERS IN TRANSITION' LIGHTS, AND THE 'REVERSERS DEPLOYED' LIGHTS DID NOT ILLUMINATE. EVEN THOUGH THE AIRCRAFT FLIGHT MANUAL WARNS AGAINST MOVING THE REVERSER THROTTLE LEVERS INTO THE POWER RANGE WITHOUT THE ILLUMINATION OF THESE LIGHTS, THE PILOT DID SO ANYWAY. THE PILOT CONTINUED TO SELECT REVERSE POWER EVEN AFTER THE ACTIVATION OF THE THROTTLE MISMATCH WARNING HORN, RESULTING IN AN INCREASE IN FORWARD THRUST WHILE ATTEMPTING TO STOP. DURING THIS SEQUENCE OF EVENTS THE SECOND-IN-COMMAND MOVED THE PARKING BRAKE LEVER TO FULL OVERRIDE, LOCKING THE MAIN WHEEL BRAKES AND OVERRIDING THE ANTISKID SYTEM.

Quoted verbatim from the NTSB record.