Nanchang China CJ-6 N8120H

Summary

On 3 July 2006 at about 01:50 local time, a Nanchang China CJ-6 registered N8120H was involved in an accident near Brewster, Washington, United States. One person was 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

3 July 2006 at 01:50

Classification

Accident

Location

Brewster, Washington, United States

Nearest airport

Anderson Field (S97)

Coordinates

48.1047, -119.7300

Aircraft

Nanchang China CJ-6

Registration

N8120H

Category

Airplane

Engines

1

Operator

Not recorded

Operating rule

Part 91: General Aviation

Purpose of flight

Personal

Phase of flight

Not recorded

Route

Arlington → Omak

Aircraft damage

Substantial

Weather

VMC

Light

Day

NTSB number

SEA06LA133

Nobody was injured.

The failure of the engine's three planetary gears for undetermined reasons. A factor contributing to the accident was the tree orchard.

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

Read the full NTSB narrative

While in cruise flight at 5,000 feet the pilot heard a loud bang, followed by an instantaneous increase in RPM. Subsequent attempts to sustain engine power with throttle and propeller inputs were unsuccessful, which resulted in the pilot attempting a forced landing to a paved runway approximately 4 miles away. The airplane subsequently impacted the last row of trees of an orchard less than one-half mile from the end of the runway, which resulted in the airplane coming to rest on its belly oriented on an easterly heading. A post accident examination of the airplane's engine revealed that all three planetary gears were severely damaged, and all three gears appeared to have lost all gear teeth, with a portion of the gear teeth located in the oil sump. The reason for the damage to the planetary gears was not determined.

Quoted verbatim from the NTSB record.