N119N

Substantial
None

Riley D-16AS/N: TTN-51

Accident Details

Date
Friday, December 1, 2006
NTSB Number
SEA07CA032
Location
Point Roberts, WA
Event ID
20070119X00074
Coordinates
48.979721, -123.078887
Aircraft Damage
Substantial
Highest Injury
None
Fatalities
0
Serious Injuries
0
Minor Injuries
0
Uninjured
1
Total Aboard
1

Probable Cause and Findings

the pre-existing crack in the nose wheel fork, which allowed separation of the nose wheel during the takeoff roll, resulting in collapse of the nose landing gear.

Aircraft Information

Registration
Make
RILEY
Serial Number
TTN-51
Engine Type
Reciprocating
Model / ICAO
D-16A
Aircraft Type
Fixed Wing Multi Engine
No. of Engines
2
Seats
4
FAA Model
D-16A

Registered Owner (Current)

Name
MCMILLAN JOSEPH W
Address
180 SUNNYSIDE RD
City
WEST GROVE
State / Zip Code
PA 19390-2000
Country
United States

Analysis

On December 1, 2006, about 1415 Pacific standard time, a Riley D-16A twin-engine airplane, N119N, sustained substantial damage when the nose landing gear collapsed during takeoff roll on runway 16 at Point Roberts Airpark, Point Roberts, Washington. The private pilot, the sole occupant, was not injured. The airplane was registered to and operated by the pilot. Visual meteorological conditions prevailed and no flight plan was filed for the local personal flight conducted under 14 CFR Part 91. The flight was originating when the accident occurred.

According to the pilot, during the takeoff roll at about rotation speed, he felt the nose landing gear of the airplane "give way" and the airplane began to drift to the left. As he applied right rudder to correct the yaw, he felt "a continued collapse" of the nose landing gear and elected to abort the takeoff. The airplane's nose and both propellers struck the ground.

Examination of photos provided by an insurance adjustor revealed that both engines were displaced down and to the right. The right engine firewall was torn from the engine nacelle, and the left engine firewall was buckled and distorted. Additionally, the photos revealed that the nose landing gear fork had broken into two pieces, which allowed the nose wheel to separate from the airplane, resulting in collapse of the nose landing gear. The pilot reported that "an aircraft structural engineer made the observation that my nose gear fork had an old hidden crack that could have contributed to the failure."

Data Source

Data provided by the National Transportation Safety Board (NTSB). For more information on this event, visit the NTSB Records Search website. NTSB# SEA07CA032