Cessna 210K N8232M

Summary

On 10 November 2001 at about 02:49 local time, a Cessna 210K registered N8232M was involved in an accident near North Las Vegas, Nevada, 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

10 November 2001 at 02:49

Classification

Accident

Location

North Las Vegas, Nevada, United States

Nearest airport

North Las Vegas (VGT)

Coordinates

36.2110, -115.1193

Aircraft

Cessna 210K

Registration

N8232M

Category

Airplane

Engines

1

Operator

Not recorded

Operating rule

Part 91: General Aviation

Purpose of flight

Personal

Phase of flight

Not recorded

Route

North Las Vegas → Lancaster

Aircraft damage

Substantial

Weather

VMC

Light

Night

NTSB number

LAX02LA027

Nobody was injured.

The failure of maintenance personnel to properly diagnose the cause of a reported maintenance discrepancy resulting in the airplane being released from an annual inspection with a worn hydraulic pump which lacked sufficient output to operate the landing gear. Another cause was the pilot's improper execution of the landing gear emergency extension procedure by failing to fully extend the manual hydraulic pump handle prior to attempting emergency gear extension.

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

Read the full NTSB narrative

On the first flight following an annual inspection, in night, visual meteorological conditions, when the pilot attempted to retract airplane's landing gear, the gear would neither fully retract nor fully extend. The pilot attempted to extend the landing gear using the emergency manual extension hand pump. He reported the ". . .pump handle was locked solid and would not move. . ." He couldn't get the selector handle to recenter as it was supposed to and he didn't get a landing gear extended cockpit indication. The pilot elected to return to the departure airport. The pilot performed a flyby past the air traffic control tower and the controller radioed that all three gear appeared to be down; however, the pilot's wife, in the right seat, told him she couldn't see a wheel on that side of the airplane. During the ensuing landing, the right main landing gear collapsed, the right wing contacted the runway, and the airplane veered off the runway to the right. The aircraft was delivered for the annual inspection with a landing gear extension discrepancy. A misrigging problem on the left main landing gear seemed to explain all of the symptoms and was repaired. The gear was satisfactorily cycled 10 times using an external hydraulic pressure source (mule). Inspection subsequent to the accident revealed that, although functional, the output of the engine-driven hydraulic pump was deficient and insufficient to operate the gear. The emergency hand pump and emergency gear extension system operated normally. The maintenance facility manager speculated that the reason the pilot was not able to extend the landing gear with the emergency hand pump was because he didn't first fully extend the handle. If the telescoping handle shaft is not fully extended the handle cannot be moved and feels similar to a "hydraulic lock."

Quoted verbatim from the NTSB record.