Cessna 310R N3UR

Summary

On 10 March 2022 at about 23:30 local time, a Cessna 310R registered N3UR was involved in an accident near McGrath, Alaska, United States. 4 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

10 March 2022 at 23:30

Classification

Accident

Location

McGrath, Alaska, United States

Nearest airport

McGrath (PAMC)

Coordinates

62.9528, -155.6070

Aircraft

Cessna 310R

Registration

N3UR

Category

Airplane

Year built

1974

Engines

2

Operator

Not recorded

Operating rule

Part 91: General Aviation

Purpose of flight

Personal

Phase of flight

Not recorded

Route

Unknown → Ruby

Aircraft damage

Substantial

Weather

VMC

Light

Day

NTSB number

WPR22LA124

Nobody was injured.

A failure of the right main landing gear bellcrank lower arm fork, bellcrank, pivot bolt, and trunnion bellcrank lug for undetermined reasons.

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

Read the full NTSB narrative

The pilot back-taxied the airplane for departure and then began a 180° left turn to align the airplane with the runway centerline when the right main landing gear collapsed. The gear collapse resulted in substantial damage to the right elevator. A postaccident examination of the airplane revealed fractures to the bellcrank lower arm fork, bellcrank, pivot bolt, and trunnion bellcrank lug at the right main landing gear, which all displayed signatures consistent with overstress. The airplane had recently been repaired following another right main landing gear failure. During the repair the accident pilot, who was also the mechanic, adjusted the down lock tension as required by the maintenance manual and returned the airplane to service after he determined that the tension was within limits. A statement from the airplane manufacturer suggested that the failure may have been the result of an improper down lock tension adjustment. However, there was insufficient evidence in the investigation to show whether the pilot performed the adjustment incorrectly, thus the cause of the landing gear failure is undetermined.

Quoted verbatim from the NTSB record.