NTSB CAROL · Event
Event ANC15CA026
Registry · N7347D
FAA Aircraft Registry record.
Make / Model
PIPER PA-22-150
Year of manufacture
1957 · 58 years old at event
Engine
LYCOMING 0-320 SERIES (180 hp)
Seats / Engines
4 seats · 1 engine
Last airworthiness date
20151130
ADS-B equipped
Yes — Mode-S A9DD38
Registrant of record
OWENS TYLE M
Source: FAA Aircraft Registry (releasable master file).
Aircraft involved
Probable cause & findings
The private pilot's failure to maintain clearance from a spruce tree during final approach, which resulted in a loss of control and hard landing. Contributing to the accident was the flight instructor's failure to adequately monitor the landing.
Factual narrative
The flight instructor and private pilot were practicing takeoffs and landings in a float-equipped airplane. The flight instructor stated that on the seventh approach to landing, the private pilot misjudged the airplane's rate of descent, and struck the top of a spruce tree with the right elevator resulting in a full up deflection of the elevator. The airplane entered an uncontrolled descent, and impacted the water in a flat stalled condition sustaining substantial damage to the fuselage and elevator. The flight instructor stated that there were no preaccident mechanical anomalies with the airplane that would have precluded normal operation. In the recommendation section of the NTSB Accident/Incident Reporting Form 6120.1, the flight instructor stated that having personally flown with the pilot he had developed a sense of complacency, and the accident may have been avoided if he had been more vigilant, or conducted a more thorough preflight briefing. The flight instructor and private pilot were practicing takeoffs and landings in a float-equipped airplane. The flight instructor stated that on the seventh approach to landing, the private pilot misjudged the airplane's rate of descent, and struck the top of a spruce tree with the right elevator resulting in a full up deflection of the elevator. The airplane entered an uncontrolled descent, and impacted the water in a flat stalled condition sustaining substantial damage to the fuselage and elevator. The flight instructor stated that there were no preaccident mechanical anomalies with the airplane that would have precluded normal operation. Source: NTSB Aviation Accident Database Retrieved: 2026-02-12
NTSB Findings
Hierarchical cause / factor breakdown from the FAA bulk avdata database. Each finding tagged C (Cause) or F (Factor).
- C Aircraft-Aircraft oper/perf/capability-Performance/control parameters-Descent/approach/glide path-Not attained/maintained - C
- C Personnel issues-Task performance-Use of equip/info-Aircraft control-Pilot - C
- F Personnel issues-Psychological-Attention/monitoring-Task monitoring/vigilance-Instructor/check pilot - F
Verbatim from NTSB's published report. Source file
NTSB_2015_ANC15CA026.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 (icing, stall, 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.
- 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.
- arXiv 2023 · arXiv preprint
Variation of Critical Crystallization Pressure for the Formation of Square Ice in Graphene Nanocapillaries
Two-dimensional square ice in graphene nanocapillaries at room temperature is a fascinating phenomenon and has been confirmed experimentally.
- arXiv 2022 · arXiv preprint
Enhanced Prediction of Three-dimensional Finite Iced Wing Separated Flow Near Stall
Icing on three-dimensional wings causes severe flow separation near stall. Standard improved delayed detached eddy simulation (IDDES) is unable to correctly predict the separating reattaching flow due…
- NASA NTRS 2019 · Conference Paper
Simulation Modeling Requirements for Loss-of-Control Accident Prevention of Turboprop Transport Aircraft
In-flight loss of control remains the leading contributor to aviation accident fatalities, with stall upsets being the leading causal factor. The February 12, 2009.
- NASA NTRS 2019 · Contractor Report (CR)
An Evaluation of an Analytical Simulation of an Airplane with Tailplane Icing by Comparison to Flight Data
This report presents the assessment of an analytical tool developed as part of the NASA/FAA Tailplane Icing Program. The analytical tool is a specialized simulation program called TAILSM4 which was de…
- NASA NTRS 2019 · Technical Publication (TP)
NASA/FAA Tailplane Icing Program: Flight Test Report
This report presents results from research flights that explored the characteristics of an ice-contaminated tailplane using various simulated ice shapes attached to the leading edge of the horizontal …
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