Cessna 210D N3928Y

Summary

On 21 November 1999 at about 04:00 local time, a Cessna 210D registered N3928Y was involved in an accident near Sheridan, Wyoming, United States. One person was 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

21 November 1999 at 04:00

Classification

Accident

Location

Sheridan, Wyoming, United States

Nearest airport

Sheridan County Airport (SHR)

Coordinates

44.7899, -106.9499

Aircraft

Cessna 210D

Registration

N3928Y

Category

Airplane

Engines

1

Operator

Not recorded

Operating rule

Part 91: General Aviation

Purpose of flight

Personal

Phase of flight

Not recorded

Route

Billings → Unknown

Aircraft damage

Substantial

Weather

VMC

Light

Night/Bright

NTSB number

DEN00LA020

Nobody was injured.

The partial failure of the engine driven hydraulic pump.

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

Read the full NTSB narrative

The pilot said that this was the first flight after the annual inspection. When he put the leading gear handle down for landing, he didn't get a positive gear lock light, so he cycled the leading gear several times in an attempt to get a positive gear down and locked indication. He attempted to hand pump the gear down, but still had no positive down and locked light. He landed the airplane, and during the landing roll the right main landing gear failed. Postaccident examination of the engine driven hydraulic pump pressure revealed that its output was 200 pounds per square inch (psi). The maintenance personnel that worked on the airplane said that normal pump pressure output was 2,725 psi. The hydraulic pump was replaced, and the landing gear cycled normally.

Quoted verbatim from the NTSB record.