N36MRCLEM WILLIAM B III DOMINATOR GYROCOPTER2010-08-15 NTSB Accident Report

Substantial
None

CLEM WILLIAM B III DOMINATOR GYROCOPTERS/N: Y-001

Summary

On August 15, 2010, a Clem William B III DOMINATOR GYROCOPTER (N36MR) was involved in an incident near Brighton, CO. All 1 person aboard were uninjured. The aircraft sustained substantial damage.

The National Transportation Safety Board determined the probable cause of this incident to be: The pilot's failure to maintain control of the gyroplane during landing.

The private pilot was preparing to land his gyroplane when he encountered a downdraft, which increased his rate of descent. The pilot was unable to arrest the descent rate and landed hard. As a result, the left main gear axle broke causing the lower rudder strut to contact the ground. The strut bent upwards into the propeller, splintering the propeller and causing substantial damage to approximately 12 inches of the 68-inch-long rudder. The pilot reported that the downdraft was caused by an 80-degree crosswind that blew over houses just to the northeast of the runway threshold. The pilot did not report any mechanical deficiencies with the gyroplane prior to the accident.

This incident is documented in NTSB report CEN10CA528. AviatorDB cross-references NTSB investigation data with FAA registry records to provide comprehensive safety information for aircraft N36MR.

Accident Details

Date
Sunday, August 15, 2010
NTSB Number
CEN10CA528
Location
Brighton, CO
Event ID
20100909X41052
Coordinates
39.976387, -104.702774
Aircraft Damage
Substantial
Highest Injury
None
Fatalities
0
Serious Injuries
0
Minor Injuries
0
Uninjured
1
Total Aboard
1

Probable Cause and Findings

The pilot's failure to maintain control of the gyroplane during landing.

Aircraft Information

Registration
Make
CLEM WILLIAM B III
Serial Number
Y-001
Engine Type
None
Model / ICAO
DOMINATOR GYROCOPTERFK9
No. of Engines
0

Registered Owner (Historical)

Name
CLEM WILLIAM B III
Address
14990 ECHO DR
Status
Deregistered
City
GOLDEN
State / Zip Code
CO 80401-1308
Country
United States

Analysis

The private pilot was preparing to land his gyroplane when he encountered a downdraft, which increased his rate of descent. The pilot was unable to arrest the descent rate and landed hard. As a result, the left main gear axle broke causing the lower rudder strut to contact the ground. The strut bent upwards into the propeller, splintering the propeller and causing substantial damage to approximately 12 inches of the 68-inch-long rudder. The pilot reported that the downdraft was caused by an 80-degree crosswind that blew over houses just to the northeast of the runway threshold. The pilot did not report any mechanical deficiencies with the gyroplane prior to the accident.

Data Source

Data provided by the National Transportation Safety Board (NTSB). For more information on this event, visit the NTSB Records Search website. NTSB# CEN10CA528