Cessna 206 N7372Q

Summary

On 17 June 2003 at about 15:30 local time, a Cessna 206 registered N7372Q, operated by McCall Aviation, was involved in an accident near Soldier Bar, 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

17 June 2003 at 15:30

Classification

Accident

Location

Soldier Bar, Idaho, United States

Nearest airport

Soldier Bar USFS (85U)

Coordinates

45.0997, -114.8019

Aircraft

Cessna 206

Registration

N7372Q

Category

Airplane

Engines

1

Operator

McCall Aviation

Operating rule

Part 91: General Aviation

Purpose of flight

Instructional

Phase of flight

Not recorded

Route

McCall → Soldier Bar

Aircraft damage

Substantial

Weather

VMC

Light

Day

NTSB number

SEA03LA113

Nobody was injured.

The overload failure of the nose landing gear assembly during the landing roll, due to an improper maintenance installation. A factor was the rough/uneven terrain condition.

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

Read the full NTSB narrative

After a smooth landing and rollout, the pilot noticed the attitude of the airplane changing as the nose pitched down. Subsequently, the nose gear collapsed and the aircraft slid to a stop in an upright position. The aircraft sustained substantial damage to the fuselage structure where the nose gear drag link connects to the casting. There was also damage to the lower front cowling and the propeller blades as a result of impacting the runway surface. The nose gear yoke and nose gear strut assemblies were sent to the NTSB Materials Laboratory Division for examination. The examination revealed that the nose gear failed in overstress, consistent with the nose gear yoke moving to the aft and to the right relative to the nose gear strut. It was reported that incorrect nose gear yoke attachment bolts and nuts were installed incorrectly and that one of the bolts was fractured, consistent with overstress in shear. It was also reported that a wedge-shaped spacer was not installed between the nose gear strut and the nose gear yoke, which would affect the loading of the four yoke attachment bolts. Also noted was the presence of various cracks around the attachment bolt through holes. The fracture surfaces were consistent with fatigue.

Quoted verbatim from the NTSB record.