Cessna 210L N59063

Summary

On 7 October 2003 at about 15:20 local time, a Cessna 210L registered N59063 was involved in an accident near Tallahassee, Florida, United States. 2 people were 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

7 October 2003 at 15:20

Classification

Accident

Location

Tallahassee, Florida, United States

Nearest airport

Tallahassee Regional (THL)

Coordinates

30.5500, -84.3786

Aircraft

Cessna 210L

Registration

N59063

Category

Airplane

Engines

1

Operator

Not recorded

Operating rule

Part 91: General Aviation

Purpose of flight

Public Use

Phase of flight

Not recorded

Route

Jacksonville → Birmingham

Aircraft damage

Substantial

Weather

VMC

Light

Day

NTSB number

ATL04TA012

Nobody was injured.

Loss of engine power due to crankshaft counterweight failure.

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

Read the full NTSB narrative

According to the pilot, while in cruise flight at 10,000 feet agl, the engine lost power. The pilot made a wheels up forced landing into a field. Maintenance history revealed that the engine had a propeller strike on February 19, 2003. The engine was removed from the airplane and sent to Certified Engines Unlimited, for special inspection. The engine had a total time since major overhaul (TTSMOH) of 509.2 hours. On March 21, 2003, the engine was reinstalled on the airplane and returned to service. On May 13, 2003, the engine was removed and sent to Certified Engines Unlimited, due to a crankshaft counterweight failure TTSMOH 535.1 hours. The counterweights were replaced and the engine was reinstalled on the airplane June 12, 2003. On October 7, 2003 while in cruise flight the airplane had a catastrophic engine failure TTSMOH 734.1 hours. Examination of the engine at TCM found the crankshaft fractured through the number one connecting rod journal forward fillet radius and upper counterweight hanger blade. The rear upper crankshaft counterweight was detached from its hanger blade. One plate and snap-ring was forced from their locations on each side of the counterweight by mechanical action of the pins. The counterweight plates of this counterweight were bowed outward in relationship to their installed positions. One of the snap-rings was fractured in two pieces and both snap-rings that were not in place exhibited signatures of being forced from their retaining grooves in the counterweight. The remaining rear counterweight exhibited sever mechanical damage and was intact on the hanger blade. The forward set of counterweights, pins, plates and snap-rings were intact and undamaged and had free and unrestricted movement on the hanger blades.

Quoted verbatim from the NTSB record.