Brooks SONERAI 2L N356RB

Summary

On 6 September 2002 at about 15:10 local time, a Brooks SONERAI 2L registered N356RB was involved in an accident near Canton, Illinois, 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

6 September 2002 at 15:10

Classification

Accident

Location

Canton, Illinois, United States

Nearest airport

Ingersoll (CTK)

Coordinates

40.5692, -90.0750

Aircraft

Brooks SONERAI 2L

Registration

N356RB

Category

Airplane

Engines

1

Operator

Not recorded

Operating rule

Part 91: General Aviation

Purpose of flight

Flight Test

Phase of flight

Not recorded

Route

Canton → Unknown

Aircraft damage

Substantial

Weather

VMC

Light

Day

NTSB number

CHI02LA274

1 person had minor injuries.

The partial failure of the ignition system, the induction air leak at the carburetor mounting plate, and the pilot's inadvertant stall during the forced landing. Contributing factors were the crack in the electronic ignition coil, and the improper installation of the carbuetor resulting in an induction air leak.

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

Read the full NTSB narrative

During a forced landing following a partial loss of engine power, the pilot inadvertantly stalled on short final and the airplane was substantially damaged. The pilot reported that immediately after takeoff, the engine began to "sputter and lose r.p.m.'s". The pilot attempted to return to the airport, but was unable to maintain altitude and elected to execute a forced landing into a bean field approximately 200 feet east of the runway. The pilot reported installing a new carburetor which required an adapter to properly mate to the existing intake manifold. This was the first flight following installation. He reported that a full static run-up had been completed prior to takeoff and that two static run-ups were conducted in the days prior to the accident. A post-accident examination revealed that the flanges on the aircraft engine intake manifold and the carburetor mounting flange did not seal completely, causing an induction air leak at the carburetor mounting flange. In addition, one coil on the electronic ignition was found to be cracked and failed to produce a spark at its associated spark plugs.

Quoted verbatim from the NTSB record.