Aviation Accident Summaries

Aviation Accident Summary LAX02LA065

Oceano, CA, USA

Aircraft #1

N328EJ

Piper PA-24-250

Analysis

The airplane lost engine power in the traffic pattern and collided with an airport perimeter fence when it landed short of the runway. The pilot reported that while on the downwind leg of the traffic pattern, he lowered the landing gear. He heard a loud bang from the firewall area, and the instrument panel caved in. The engine lost power, and he maneuvered the airplane towards the airport. The airplane touched down about 500 to 1,000 feet short of the runway, and collided with an airport perimeter fence. A post accident examination of the airplane revealed that the mixture control cable separated at the mixture control arm. The engine control bracket, part number 21189-00, was missing. Without the bracket, the mixture control cable hangs freely down below the engine, where the nose gear is located when in the retracted position. A kink in the mixture cable indicated that it became caught on a Zerk fitting located on the pivot point of the nose landing gear when the nose gear was extended to the down position. This resulted in the mixture control cable separating from the mixture control arm on the carburetor. Maintenance records revealed that the airplane was about 2 months overdue for an annual inspection.

Factual Information

On January 13, 2002, at 1437 Pacific standard time, a Piper PA-24-250, N328EJ, lost engine power and collided with an airport perimeter fence when it landed short of the runway at Oceano County Airport, Oceano, California. The pilot/owner was operating the airplane under the provisions of 14 CFR Part 91. The private pilot, the sole occupant, was not injured; the airplane sustained substantial damage. The personal local flight originated at Oceano about 1415. Day visual meteorological conditions prevailed, and a flight plan had not been filed. The Federal Aviation Administration (FAA) inspector stated that the pilot reported that he was attempting to land on runway 29. While on the downwind leg of the traffic pattern, he lowered the landing gear. He heard a loud bang from the firewall area, and the instrument panel caved in. The engine lost power and he maneuvered the airplane towards the airport. The airplane touched down about 500 to 1,000 feet short of the runway and collided with an airport perimeter fence. The FAA inspector conducted a post accident inspection of the airplane. The examination revealed that the mixture control cable separated at the mixture control arm. The engine control bracket, part number 21189-00, was missing. The function of the bracket is to secure control cables away from the nose landing gear. Without the bracket, the mixture control cable hangs freely down below the engine, where the nose gear is located when in the retracted position. He found a kink in the mixture cable. He thought that this was an indication that it snagged on the nose landing gear hardware when the pilot extended the nose gear to the down position. The evidence suggested that the mixture control cable became caught on the Zerk fitting located on the pivot point of the nose landing gear. This resulted in the mixture control cable separating from the mixture control arm on the carburetor. The FAA inspector's review of maintenance records revealed that the airplane was about 2 months overdue for an annual inspection. The pilot's medical expired about 14 months prior to the accident. The owner/operator failed to file or return a Pilot/Operator Aircraft Accident Report (NTSB Form 6120.1/2).

Probable Cause and Findings

A loss of engine power due to the separation of the mixture control cable from the mixture control arm of the carburetor. The mixture cable separation was due to maintenance personnel's failure to secure the mixture control cable away from the nose landing gear, which resulted in the cable snagging during gear extension. A factor in the accident was the airplane being overdue for an annual inspection.

 

Source: NTSB Aviation Accident Database

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