Grumman G21 N22932

Summary

On 5 April 2004 at about 01:15 local time, a Grumman G21 registered N22932 was involved in an accident near Unalaska, Alaska, United States. 9 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

5 April 2004 at 01:15

Classification

Accident

Location

Unalaska, Alaska, United States

Nearest airport

Unalaska (DUT)

Coordinates

53.9003, -166.5436

Aircraft

Grumman G21

Registration

N22932

Category

Airplane

Engines

2

Operator

Not recorded

Operating rule

Part 135: Air Taxi & Commuter

Phase of flight

Not recorded

Route

Akutan → Unknown

Aircraft damage

Substantial

Weather

VMC

Light

Day

NTSB number

ANC04LA038

Nobody was injured.

The inadvertent ground loop/swerve by the second pilot during the landing roll, and the first (check) pilot's inadequate supervision of the second pilot, which resulted in a loss of control and substantial damage to the airplane. Factors associated with the accident are the second pilot's improper upgrade/transition training by the company check airman, the second pilot's lack of experience in the accident type airplane, the operator's lack of surveillance of the training process, and a crosswind.

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

Read the full NTSB narrative

A recently qualified captain was landing an amphibious, tailwheel airplane in a near direct crosswind of 7 gusting to 14 knots on a hard-surfaced runway at the conclusion of a scheduled commuter airline flight. The new captain (second pilot) was being observed and trained by the pilot-in-command check airman, who occupied the right seat pilot station. The right seat station was equipped with all flight controls, but did not have brake pedals. During the landing roll, the airplane ground looped to the right, and the left main landing gear collapsed, resulting in substantial damage to the fuselage. A review of the second pilot's training records and interviews with FAA personnel, disclosed that the second pilot had not received adequate transition training to the accident type airplane, and had a total of 1.8 hours in the accident type airplane at the time of the accident, which included all training and a flight check. The second pilot had accrued about 7 hours of tailwheel experience over 7 years prior to beginning his training on the accident type airplane. His received only 3 wheel landings, instead of the minimum of 12, in the accident type airplane during his transition training. Postaccident inspection of the airplane and maintenance records disclosed no evidence of any preaccident mechanical problems.

Quoted verbatim from the NTSB record.