NTSB CAROL · Event
Event CHI95LA222
Registry · N88007
FAA Aircraft Registry record.
Make / Model
SCHWEIZER 269C
TCDS
4H12 · SCHWEIZER RSG LLC
Seats / Engines
3 seats · 1 engine
Last airworthiness date
19560717
ADS-B equipped
Yes — Mode-S AC204D
Registrant of record
ZANUZOSKI ALAN
Source: FAA Aircraft Registry (releasable master file).
Aircraft involved
Probable cause & findings
the pilot's failure to maintain clearance with the runway marker.
Factual narrative
On July 14, 1995, at 1500 central daylight time, a Hughes 269C, N88007, registered to Silverhawk Security Specialists of Lincoln, Nebraska, collided with a runway marker while hovering at the Crete Airport, Crete, Nebraska, while on a maintenance test flight. Visual meteorological conditions prevailed and no flight plan was filed. The helicopter was substantially damaged. The pilot and passenger were not injured. The pilot had been hovering while the main rotor disc lateral balance was being tested. He stated the winds were too "brisk" to hover with a downwind. He performed a clearing turn and ultimately lined "the nose of the helicopter with the prevailing wind." The pilot began hovering sideways and after moving about 20 feet, the rear position of the right skid tube contacted a runway marker sign. The helicopter then entered what the pilot described as a "dymanic rollover." The pilot stated his view was blocked by the passenger and the right rear corner of the cabin structure. While performing a sideways taxi hover, the helicopter skid contacted a runway marker and the helicopter rolled over. Source: NTSB Aviation Accident Database (Pre-2008 Archive) Retrieved: 2026-02-12
Verbatim from NTSB's published report. Source file
NTSB_1995_CHI95LA222.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 (maintenance). 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 2026 · Journal article (IJAAA)
From Reactive to Predictive: A hybrid Trust-Mediated Adoption Framework for Data-Driven Maintenance in Distributed-Authority Aviation Environments
Modern aviation maintenance operates within increasingly data-intensive technological environments, yet the operational integration of predictive maintenance into routine decision-making remains incon…
- Semantic Scholar 2025 · Article (Applied Sciences)
Decision-Making Framework for Aviation Safety in Predictive Maintenance Strategies
The implementation of predictive maintenance (PM) in aviation presents unique challenges due to strict safety requirements, complex operational environments, and regulatory constraints.
- Embry-Riddle Scholarly Commons 2024 · Journal article (JAAER)
Low-Resource Automatic Speech Recognition Domain Adaptation – A Case-Study in Aviation Maintenance
With timeliness and efficiency being critical in the aviation maintenance industry, the need has been growing for smart technological solutions that optimize and streamline the different underlying ta…
- Embry-Riddle Scholarly Commons 2024 · Journal article (JAAER)
A New Trajectory in UAV Safety: Leveraging Reinforcement Learning for Distance Maintenance Under Wind Variations
In the field of aviation, safety is a critical cornerstone, and the operation of Unmanned Aerial Vehicle (UAV) systems is deeply connected with this principle.
- Embry-Riddle Scholarly Commons 2024 · Journal article (IJAAA)
Just Culture in Aviation: A Metaphorical Study on Aircraft Maintenance Students
Just Culture, a sub-dimension of safety culture, has been a prominent and debated topic in aviation safety in recent years.
- Embry-Riddle Scholarly Commons 2024 · Journal article (IJAAA)
Performance PRISM: A Comprehensive Framework For Performance Measurement In Aircraft Maintenance
Aircraft maintenance is governed by rigorous safety requirements and high operational complexity, demanding robust performance measurement frameworks to ensure optimal maintenance practices.
Browse the full corpus — academia portal ↗