# NTSB CEN10LA242: Jorritsma Jerrold S Berkut, N3255U, Loveland, CO, May 9, 2010 - Type: NTSB accident investigation - Classification: Accident · No injuries · Limited investigation · Final report - Date: May 9, 2010, 10:00 local (16:00 UTC) - Place: Loveland, CO - Coordinates: 40.451946, -105.01139 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=40.4519&lon=-105.0114&mi=10 - Phase of flight: [Initial climb](https://openairdocs.org/ntsb-phases/350) (OpenAirDocs' grouping) - Defining event: [Initial climb: Loss of engine power (total)](https://openairdocs.org/ntsb-events/341) - Highest injury: No injuries - Injuries: 1 uninjured - Status: Completed, report July 22, 2010 - Report: Approved by Office Director - NTSB office: Central Region - Parties: Federal Aviation Administration - NTSB case key (mKey): 75967 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CEN10LA242 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/75967/pdf - NTSB docket: https://data.ntsb.gov/Docket?ProjectID=75967 - Page: https://openairdocs.org/ntsb/CEN10LA242 ## Probable cause A loss of engine power due to a malfunction of the fuel controller resulting in a compressor stall. ## Findings NTSB's coded findings; those marked are part of the probable cause. - [Engine fuel and control: fuel controlling system](https://openairdocs.org/ntsb-findings/01057320): Aircraft › Aircraft power plant · Malfunction (probable cause); cases with it: [Jorritsma Jerrold S BERKUT, 1 case](https://openairdocs.org/ntsb-findings/01057320/cases.md?model=056209Y), [All aircraft, 59 cases](https://openairdocs.org/ntsb-findings/01057320/cases.md) ## Sequence of events The events NTSB coded, in order, by phase of flight. The defining event best describes what happened. - [Initial climb: Loss of engine power (total)](https://openairdocs.org/ntsb-events/341) (defining event); cases with it: [Jorritsma Jerrold S BERKUT, 1 case](https://openairdocs.org/ntsb-events/341/sequence.md?model=056209Y), [All aircraft, 3,820 cases](https://openairdocs.org/ntsb-events/341/sequence.md) - [Emergency descent: Off-field or emergency landing](https://openairdocs.org/ntsb-events/440); cases with it: [Jorritsma Jerrold S BERKUT, 1 case](https://openairdocs.org/ntsb-events/440/sequence.md?model=056209Y), [All aircraft, 3,365 cases](https://openairdocs.org/ntsb-events/440/sequence.md) - [Landing-landing roll: Collision with terr/obj (non-CFIT) ](https://openairdocs.org/ntsb-events/470); cases with it: [Jorritsma Jerrold S BERKUT, 1 case](https://openairdocs.org/ntsb-events/470/sequence.md?model=056209Y), [All aircraft, 10,189 cases](https://openairdocs.org/ntsb-events/470/sequence.md) ## Analysis 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. ## Factual 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. ## Aircraft - Registration: [N3255U](https://openairdocs.org/deregistered/N3255U-2020-02-28), registration cancelled 2020-02-28, S/N 54, built 2006 (OpenAirDocs) - Reported make and model: JORRITSMA JERROLD S BERKUT - Registry model: [Jorritsma Jerrold S BERKUT](https://openairdocs.org/model/jorritsma-jerrold-s-berkut) (registry code 056209Y) (OpenAirDocs) - Registry engine: [Amateur-built UNKNOWN ENG](https://openairdocs.org/engine/amateur-built-unknown-eng) (registry code 99999) (OpenAirDocs) - Category: Airplane, amateur-built - Serial number: 54 - Airframe hours: 40 - Engines: JORRITSMA T58-8F 500 lbs thrust turbo jet - Damage: Substantial damage - Flight: Personal, Part 91 - Airworthiness certificate: Special, Experimental (Special) - Last inspection: Continuous airworthiness, March 20, 2010, 10 hours before - Departed: KFNL, Loveland, CO - Destination: KFNL, Loveland, CO - Airport: KFNL, Fort Collins-Loveland Muni, runway 15, 8,500 × 100 ft ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 54; injuries: none; private; airplane ratings: single-engine land; medical: class 3, with waivers/limitations; seat: front; flight hours: 97 total, 15 in this make and model, 97 as pilot in command, 4 in the last 90 days, 2 in the last 30 days ## Weather - Conditions: Visual (VMC), Day - Wind: calm - Visibility: 10 statute miles - Temperature: 48 °F, dew point 32 °F - Altimeter: 29.93 inHg - Observed at: KFNL ## FAA reports on this event (1) The FAA's own accident and incident reports, matched to the aircraft by N-number and date (OpenAirDocs). - [Accident 20100509033389A](https://openairdocs.org/incident/20100509033389A), May 9, 2010: Jorritsma J BERKUT, Loveland, CO, Substantial damage. On may 9 2010 at approximatly 1000 hours, a single, turbine engine powered Berkut, serial number 054 (N3255U) was substantially damaged during a crash landing… ## Docket (1 files) The files NTSB released with the investigation on June 8, 2010, on NTSB's docket system: https://data.ntsb.gov/Docket?ProjectID=75967. 427 KB in all. - Pilot/Operator Aircraft Accident Report, NTSB Form 6120.1 (item 1, .PDF, 427 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40330584&FileExtension=.PDF&FileName=Pilot%2FOperator%20Aircraft%20Accident%20Report,%20NTSB%20Form%206120.1-Redacted.PDF From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.