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May 9, 2010 · Jorritsma Jerrold S Berkut · N3255U

Loveland, CO

Overview

Report Status
Final with probable cause
Event Type
Accident
Date
May 9, 2010
Injury Outcomes
No injuries (1 uninjured)
Location
Loveland, CO
Aircraft
Jorritsma Jerrold S Berkut
Tail Number
N3255U
Injuries
None
Aircraft Damage
Substantial
NTSB Number
CEN10LA242

The turbojet airplane was on initial takeoff when the pilot began a power reduction on the throttle. A loud bang was heard and vibrations were felt by the pilot. The engine began to lose power and the pilot attempted to land the airplane at the airport, but landed short resulting in substantial damage to the fuselage and wings. An examination of the experimental engine by the owner/manufacturer revealed a malfunction of the fuel controller which resulted in a compressor stall and subsequent loss of engine power.

NTSB Probable Cause

A loss of engine power due to a malfunction of the fuel controller resulting in a compressor stall.

Full Narrative

On May 9, 2010, approximately 1000 mountain daylight time, a Jorritsma Berkut, N3255U, was substantially damaged during a forced landing following a total loss of engine power during initial takeoff . The private pilot, the sole occupant, was not injured. The airplane was owned and operated by the pilot. Visual meteorological conditions prevailed and no flight plan was filed for the Title 14 Code of Federal Regulations Part 91 personal flight. The local flight was departing the Fort Collins-Loveland Municipal Airport (KFNL), Loveland, Colorado at the time of the accident. According to a statement provided by the pilot, shortly after departing KFNL and climbing through 7,500 feet mean seal level, the pilot made a power reduction. A loud bang was heard and vibrations were felt by the pilot. The pilot scanned the engine instruments and determined that the engine was "rolling back" and losing power. The pilot attempted to return to the airport, but impacted terrain short of the runway. The airplane's landing gear collapsed during the forced landing, and substantial damage was sustained to the fuselage and both wings. The engine was equipped with an experimental engine. The Jorritsma T58-8F was a turbojet engine based on General Electric T58-GE-8F turboshaft design. The engine's compressor section has variable stators which are actuated by the fuel controller. An examination of the engine by the owner/manufacturer revealed that a malfunction of the fuel controller resulted in conditions conducive for compressor stalls.

Flight

Event TypeAccident
Event Time10:00 MDT
Nearest AirportFort Collins-Loveland Muni (1nm)
Runway15
Runway Length8500 ft
Runway Width100 ft
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo

Aircraft

AircraftJorritsma Jerrold S Berkut
Tail NumberN3255U
Aircraft CategoryAir
DamageSubstantial
Operating RulePart 91
Engines1
Engine TypeTurbojet
Engine DetailsJorritsma · T58-8F · Turbojet · 500
Seats2

People & Injuries

Injury SummaryNo injuries (1 uninjured)
Fatal0
Serious0
Minor0
Uninjured1
Total1
Crew 1Age 54 · Third Class · None

Conditions

ConditionsVMC
LightDaylight
WindCalm
Visibility10 sm
CeilingNone
Temperature / Dew Point48 / 32 C
Altimeter29.93 inHg
Observation Time15:55
Weather SourceWFAC

Appendix: Source Data