N1222C

Substantial
None

COOK SONEXS/N: 1662

Accident Details

Date
Monday, April 27, 2020
NTSB Number
WPR20CA132
Location
Upland, CA
Event ID
20200427X25753
Coordinates
34.110553, -117.681945
Aircraft Damage
Substantial
Highest Injury
None
Fatalities
0
Serious Injuries
0
Minor Injuries
0
Uninjured
1
Total Aboard
1

Probable Cause and Findings

A gradual loss of engine power during takeoff due to the pressure regulator not keeping continuous fuel pressure which led to a precautionary off airport landing and collision with terrain.

Aircraft Information

Registration
Make
COOK
Serial Number
1662
Engine Type
Reciprocating
Year Built
2016
Model / ICAO
SONEXSA02
Aircraft Type
Fixed Wing Single Engine
No. of Engines
1
Seats
2
FAA Model
SONEX

Registered Owner (Current)

Name
MILITANTE MICHAEL J
Address
9311 BIG BEN CT
City
VALLEJO
State / Zip Code
CA 94591-8599
Country
United States

Analysis

The pilot reported that he returned from a local flight and was practicing touch-and-go landings. During the second takeoff, as the airplane gained altitude, the engine began to gradually lose power. Unable to return to the runway, the pilot initiated a precautionary landing to a strip of gravel that is perpendicular to the runway. During the landing, the right wing was substantially damaged.

The pilot reported that he did not believe there was problem with the engine, but that the problem was with the fuel-to-air mixture caused by the fuel pressure regulator not keeping a continuous constant pressure that led to the gradual loss of engine power.

Data Source

Data provided by the National Transportation Safety Board (NTSB). For more information on this event, visit the NTSB Records Search website. NTSB# WPR20CA132