NTSB CAROL · Event
Event LAX96LA137
Registry · N555GR
FAA Aircraft Registry record.
Make / Model
CUB CRAFTERS INC CC19-215
Year of manufacture
2021
TCDS
A00053SE · CUB CRAFTERS INC
Engine
LYCOMING IO-390 SER (210 hp)
Seats / Engines
2 seats · 1 engine
Last airworthiness date
20211230
ADS-B equipped
Yes — Mode-S A712A4
Registrant of record
MAGNUM EQUIPMENT LEASING INC
Source: FAA Aircraft Registry (releasable master file).
Aircraft involved
Probable cause & findings
failure of the pilot to maintain control of the airplane, while performing an aerobatic maneuver, which resulted in inadvertent entry into a spin. Factors relating to the accident were: the pilot's lack of recent experience in fixed wing aircraft, his lack of experience in the make and model of airplane, and the lack of altitude to recover from an inadvertent spin.
Factual narrative
On March 17, 1996, at 1000 hours Pacific standard time, a Bumford GR-7 homebuilt experimental formula one racer, N555GR, collided with the ground following an in-flight loss of control during climb out from the French Valley airport, Temecula, California. The aircraft was owned and operated by the pilot and was beginning a local area personal flight. Visual meteorological conditions prevailed at the airport and no flight plan was filed. The aircraft was destroyed in the ground collision sequence. The certificated commercial pilot, the sole occupant, sustained fatal injuries. The flight was originating at the time of the accident. FAA inspectors from the Riverside, California, Flight Standards District Office responded to the accident site, interviewed witnesses, and examined aircraft records and the wreckage. The aircraft was assembled in 1988 and had accrued a total time of 93 hours. An annual inspection was endorsed in the aircraft records on March 15, 1996. Prior to the annual, the aircraft had been stored in a disassembled state for an undetermined period of time. The pilot had recently purchased the aircraft and this was reportedly his first flight in it. Ground witnesses stated the aircraft took off and climbed to about 2,000 feet agl in the traffic pattern. The aircraft suddenly performed a full right roll, and recovered. Then the aircraft entered a 2-turn spin to the right. The witnesses said the spin stopped, then started again, this time to the left. The left spin continued to ground impact. The FAA inspectors stated that no discrepancies were identified during an examination of the wreckage. The pilot is a military aviator assigned to fly Sikorsky CH53E helicopters. Review of available pilot records disclosed no evidence of recent fixed-wing flight activity. An autopsy was performed by the Riverside County Coroner with specimens retained for toxicological analysis. The results of the toxicological tests were negative for alcohol and all screened drug substances. The pilot had recently purchased the airplane, and reportedly, this was his first flight in the plane. Witnesses stated the airplane took off and climbed to about 2,000 feet agl in the traffic pattern. The airplane was observed to maneuver through a full right roll and recover; then it entered a 2-turn spin to the right. Witnesses said the spin stopped, then started again, this time to the left. The left spin continued to ground impact. No discrepancies were identified during an examination of the wreckage. The pilot was a military aviator assigned to fly Sikorsky CH53E helicopters. A review of available pilot records did not disclosed evidence of recent fixed-wing flight activity. Source: NTSB Aviation Accident Database (Pre-2008 Archive) Retrieved: 2026-02-12
Verbatim from NTSB's published report. Source file
NTSB_1996_LAX96LA137.txt.
Findings + structured fields enriched from FAA avall.mdb.
Full investigation docket on
data.ntsb.gov ↗.
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Related research
What the literature says.
Academic papers and agency reports matching this event's aircraft type or causal vocabulary (loss of control). Sourced from NASA NTRS, NTSB Safety Studies, FAA CAMI, AOPA Air Safety Institute, Embry-Riddle Scholarly Commons, arXiv, and the Semantic Scholar academic graph.
- Embry-Riddle Scholarly Commons 2025 · Journal article (JAAER)
A Scoping Review of Aviation Loss of Control Inflight Research
Loss of control – inflight (LOC-I) contributes to aircraft accidents at unacceptably high rates. Significant industry efforts and research have aimed to improve LOC-I prevention, detection, and recove…
- SKYbrary (Eurocontrol) 2024 · SKYbrary article
Loss of Control In-Flight (LOC-I) — SKYbrary Knowledge Base
SKYbrary comprehensive knowledge-base entry on Loss of Control In-Flight — definitions, contributing factors, accident case studies (Air France 447, Colgan 3407), and prevention strategies.
- NTSB Aircraft Accident Reports 2022 · Accident report
Loss of Control on Takeoff in Icing Conditions — Citation 560XL
Cessna Citation 560XL fatal takeoff icing accident, March 2018. Investigation of a Citation 560XL loss-of-control takeoff accident in icing conditions.
- Semantic Scholar 2021 · Article (Aviation)
ANALYSIS OF GENERAL AVIATION FIXED-WING AIRCRAFT ACCIDENTS INVOLVING INFLIGHT LOSS OF CONTROL USING A STATE-BASED APPROACH
Inflight loss of control (LOC-I) is a significant cause of General Aviation (GA) fixed-wing aircraft accidents. The United States National Transportation Safety Board’s database provides a rich source…
- NASA NTRS 2021 · Presentation
Use of Design of Experiments in Determining Neural Network Architectures for Loss of Control Detection
Abstract—We describe empirical methods for selecting a neural network architecture to implement belief state inference on generic commercial transport aircraft.
- NASA NTRS 2021 · Conference Paper
Use of Design of Experiments in Determining Neural Network Architectures for Loss of Control Detection
We describe empirical methods for selecting a neural network architecture to implement belief state inference on generic commercial transport aircraft.
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