NTSB CAROL · Event
Event LAX04LA191
Registry · N91729
FAA Aircraft Registry record.
Make / Model
AIR BORNE OUTBACK
Year of manufacture
2006
Engine
ROTAX 582DCDI (65 hp)
Seats / Engines
2 seats · 1 engine
Last airworthiness date
20070118
ADS-B equipped
Yes — Mode-S ACB36C
Registrant of record
HUDSON JEFFREY D
Source: FAA Aircraft Registry (releasable master file).
Aircraft involved
Probable cause & findings
the pilot's failure to attain and maintain a sufficient airspeed, which led to an inadvertent stall mush in high density altitude conditions.
Factual narrative
On April 8, 2004, at 0916 mountain standard time, a North American Navion, N91729, collided with terrain while departing from the Page Municipal Airport, Page, Arizona. The pilot/owner was operating the airplane under the provisions of 14 CFR Part 91. The private pilot and two passengers were not injured; the airplane sustained substantial damage. Visual meteorological conditions prevailed, and a visual flight rules flight plan had been filed. The personal cross-country flight was originating from Page, with a planned destination of Grand Canyon National Park Airport, Grand Canyon, Arizona. In a written a statement, the pilot reported that prior to departure, he calculated the weight and balance of the airplane to be within the airplane's limits, by weighing persons and baggage. He received weather information from the Automated Surface Observation Station, which reported winds light and variable. He opted to depart from runway 33, and, after an uneventful run-up, he leaned the engine in an effort to compensate for the density altitude. During the takeoff roll, the pilot began rotation about 65 miles per hour (mph). The pilot further stated that the airplane climbed to about 50 feet above ground level, at which point the engine experienced a reduction of power. With the throttle in the full power position, the airspeed decreased below 60 mph, and the pilot lowered the airplane's nose in an effort to regain speed. The pilot opted to abort the takeoff, and the airplane touched down at the end of the runway. The airplane continued off the runway onto loose dirt. After decelerating for about 150 yards, the pilot maneuvered the airplane to the left in an effort to avoid a steep drop-off in terrain. The airplane turned and came to rest in a nose down position. During a telephone interview with a National Transportation Safety Board investigator, a Federal Aviation Administration maintenance inspector, who examined the airplane after the accident, reported that he ran the engine at Air Transport, Phoenix, Arizona. He stated that the engine operated normally during the run-up. He did note that the bracket holding the airbox cable was broken, allowing the cable to loosely hang. When he activated the alternate air in the cockpit he noted about 100 rpm drop in engine power. He could not ascertain if the broken bracket was a result of the impact. In a telephone conversation with a Safety Board investigator, a certified flight instructor at Page Municipal Airport reported that while performing a run-up, he witnessed the Navion attempt to takeoff. He stated that the airplane departed ground effect with about 8 to 12 degrees pitch attitude and stalled. The airplane returned back into ground effect, and the pilot attempted to regain speed for about 1,000 feet of runway. The airplane again rotated out of ground effect, and subsequently stalled. The airplane returned to ground effect and, again, the pilot attempted to regain speed. As the airplane was approaching a cliff, it lifted out of ground effect and banked to the right. The left wing appeared to stall, and the airplane impacted terrain in a nose low attitude. A routine aviation weather report (METAR) for Page was issued at 0856. It reported a temperature of 12 degrees Celsius and an altimeter setting of 29.97 inHg. Based upon the atmospheric conditions provided by the METAR, a Safety Board computer program calculated the density altitude to be 4,896 feet. The Airport/ Facility Directory, Southwest U. S., indicates that Page Municipal Airport runway 33 is 5,499 feet long and 150 feet wide. The airplane stalled and collided with terrain in the takeoff initial climb. A witness reported that after liftoff the airplane climbed out of ground effect and stalled. The airplane returned back into ground effect, and the pilot lowered the nose to regain speed. He rotated out of ground effect, and subsequently stalled. The airplane returned to ground effect and, again, the pilot attempted to regain speed. As the airplane was approaching a cliff, it lifted out of ground effect and banked to the right. The left wing appeared to stall and the airplane impacted terrain in a nose and left wing low attitude. Based upon the atmospheric conditions provided by the METAR, the density altitude was calculated to be 4,896 feet. A Federal Aviation Administration maintenance inspector examined the airplane after the accident. He reported that he ran the engine, and found no anomalies or malfunctions that would have resulted in a decrease in power. Source: NTSB Aviation Accident Database (Pre-2008 Archive) Retrieved: 2026-02-12
Verbatim from NTSB's published report. Source file
NTSB_2004_LAX04LA191.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 (stall, 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 2023 · Conference paper
The Value of Strong Partnerships to Build a Successful Aviation Maintenance Career Pathway Program for Transitioning Military Service Members
The aerospace industry is competing with other industries for a qualified workforce, and many of those competing industries are investing heavily in creating workforce development pipelines.
- 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…
- NASA NTRS 2026 · Conference Paper
Computational Analysis of Steady State Aerodynamics of Transonic Truss-Braced Wing Configuration in Deep Stall
This study presents a computational investigation of steady state aerodynamics of the Subsonic Ultra-Green Aircraft Research (SUGAR) Transonic Truss-Braced Wing (TTBW) configuration over a wide range …
- 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.
Browse the full corpus — academia portal ↗