Beechcraft P35 N9532Y

Summary

On 18 March 2014 at about 15:20 local time, a Beechcraft P35 registered N9532Y, operated by Beavers Glenn A, was involved in an accident near Wichita Falls, Texas, United States. 2 people were on board and one had minor injuries. The aircraft was substantially damaged. The NTSB has published a probable cause for this accident; it is quoted in full below.

Date

18 March 2014 at 15:20

Classification

Accident

Location

Wichita Falls, Texas, United States

Nearest airport

Kickapoo Downtown Airport (CWC)

Coordinates

33.8606, -98.4903

Aircraft

Beechcraft P35

Registration

N9532Y

Category

Airplane

Year built

1962

Engines

1

Operator

Beavers Glenn A

Operating rule

Part 91: General Aviation

Purpose of flight

Instructional

Phase of flight

Not recorded

Route

Wichita Falls → Wichita Falls

Aircraft damage

Substantial

Weather

VMC

Light

Day

NTSB number

CEN14LA165

1 person had minor injuries.

The loss of engine power due to the misrigging of the fuel mixture control.

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

Read the full NTSB narrative

The pilot reported that, while turning from the downwind to the base leg to prepare for a short-field landing on the runway, he reduced the throttle. He then applied throttle to increase the power when the airplane was about 600 feet above ground level; however, the engine did not respond, and the pilot subsequently executed a forced landing to a field. During the landing, both wings sustained substantial damage. During an engine test run with the cockpit fuel mixture control in the full-forward position, the engine would lose power when the throttle was advanced past 2,000 rpm. When the cockpit fuel mixture control was pulled out about 1 inch, the engine would develop 2,700 rpm (full power) when the throttle was advanced. The examination of the engine revealed that the lean mixture stop pin in the fuel metering unit was loose and could be removed by hand. Wear was observed on the inside of the fuel mixture actuating arm and on the mixture stop on the rotating shaft. The fuel metering unit's rich mixture stop pin was missing, which allowed the actuating arm to travel past the full-rich mixture position. A bench test of the fuel mixture control demonstrated that extension past the rich mixture stop pin reduced the fuel flow to the engine. This condition indicates that the airplane's fuel mixture control was misrigged, which resulted in the rich mixture stop pin dislodging from the fuel metering unit. It could not be determined when the fuel mixture control was misrigged.

Quoted verbatim from the NTSB record.