Bombardier CL-600 N660RM

Summary

On 9 March 2005 at about 19:12 local time, a Bombardier CL-600 registered N660RM was involved in an accident near Tupelo, Mississippi, United States. 7 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

9 March 2005 at 19:12

Classification

Accident

Location

Tupelo, Mississippi, United States

Nearest airport

Tupelo Regional Airport (TUP)

Coordinates

34.2692, -88.7719

Aircraft

Bombardier CL-600

Registration

N660RM

Category

Airplane

Engines

2

Operator

Not recorded

Operating rule

Part 91: General Aviation

Purpose of flight

Business

Phase of flight

Not recorded

Route

Tupelo → Teterboro

Aircraft damage

Substantial

Weather

VMC

Light

Day

NTSB number

ATL05FA061

Nobody was injured.

The inadequate design of the microphone jack assembly Supplemental Type Certificate by production design personnel resulting in the aft restriction of the control column at rotation airspeed, aborted takeoff, and collapse of the nose gear on the overrun.

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

Read the full NTSB narrative

The pilot (PIC) stated they were cleared for takeoff from runway 36. The airplane reached V1 (128 knots) and VR (134 knots) and the PIC attempted to rotate the airplane with the control column. The control column would not move aft from the neutral position. The forward movement of the control column was normal. The aft movement beyond the neutral position felt as if it was locked against a stop. The airplane was about 4,000 feet down the runway between 140 to 145 knots. No enunciator’s lights were illuminated. The PIC commanded the abort, extended the spoilers, applied maximum braking, and maximum reverse thrust, and maintained centerline down the runway. The airplane went off the end of the runway and the nose wheel collapsed in the mud. Review of the airplane log books revealed a Dual Baker M1045 Cockpit Audio System had been installed on the airplane in accordance with Supplemental Type Certificate Number SA 4900SW in 1984. Examination of the airplane revealed when the control column was pulled aft that the handheld microphone audio jack assembly attached to the co-pilot's control column was bent downward and the audio jack assembly came in contact with the control column cover preventing aft movement of the control column. A new Airworthiness Directive was issued requiring the modification of the microphone jack assembly, revision of the airplane flight manual to require repetitive visual checks of the microphone jack assemblies on both control columns to detect damage that may interfere with the movement of the control column.

Quoted verbatim from the NTSB record.