Clark AEROSPORT SCAMP N234HC

Summary

On 11 April 2005 at about 20:45 local time, a Clark AEROSPORT SCAMP registered N234HC was involved in an accident near Chino, California, United States. One person was 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

11 April 2005 at 20:45

Classification

Accident

Location

Chino, California, United States

Nearest airport

Chino (CNO)

Coordinates

33.9747, -117.6364

Aircraft

Clark AEROSPORT SCAMP

Registration

N234HC

Category

Airplane

Engines

1

Operator

Not recorded

Operating rule

Part 91: General Aviation

Purpose of flight

Personal

Phase of flight

Not recorded

Route

Chino → Unknown

Aircraft damage

Substantial

Weather

VMC

Light

Day

NTSB number

LAX05LA133

1 person had minor injuries.

a loss of engine power due to the pilot/builder's excessive adjustment (lean) of the mixture setting at the carburetor. The pilot/builder's failure to perform a more comprehensive ground test prior to flight was a factor.

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

Read the full NTSB narrative

The airplane nosed over during a forced landing following a partial loss of engine power in the takeoff initial climb. Just prior to the accident flight, the pilot adjusted the mixture control at the carburetor because previous test flights indicated that the mixture was running too rich. He contacted the carburetor manufacturer and was advised to adjust the setting no greater than one turn. The pilot adjusted the setting one complete turn. Following an operational ground test at 2,700 rpm (full power is 3,600 rpm), he departed and climbed the airplane to 300 feet. The engine did not develop full power and he attempted to correct the problem by leaning the mixture. The condition worsened so he landed the airplane in a field. The airplane was going through its Phase I flight test and the airframe and engine had accumulated approximately 6 hours. The pilot did not report any mechanical failures with the airplane or engine.

Quoted verbatim from the NTSB record.