NTSB CAROL · Event
Event ANC07LA040
Registry · N898AT
FAA Aircraft Registry record.
Make / Model
PIPER PA-44-180
Year of manufacture
2026
Engine
LYCOMING IO-360-B1G6 (180 hp)
Seats / Engines
4 seats · 2 engines
Last airworthiness date
20260317
ADS-B equipped
Yes — Mode-S AC631E
Registrant of record
PIPER AIRCRAFT INC
Source: FAA Aircraft Registry (releasable master file).
Aircraft involved
Probable cause & findings
An undershoot and collision with the runway when the pilot misjudged the distance/altitude during the landing flare/touchdown.
Factual narrative
On May 30, 2007, about 1200 Alaska daylight time, a wheel-equipped Douglas DC-4 airplane, modified as a Carvair ATL-98, N898AT, sustained substantial damage when it collided with the approach end of a remote mine site runway during the landing flare/touchdown, about 28 miles northeast of McGrath, Alaska. The airplane was being operated as a visual flight rules (VFR) cross-country nonscheduled cargo flight under Title 14, CFR Part 125, when the accident occurred. The airplane was operated by Brooks Air Transport, dba Brooks Fuel Inc., Fairbanks, Alaska. The captain, an airline transport certificated pilot, and the first officer, a commercial certificated pilot, were not injured. Visual meteorological conditions prevailed, and VFR company flight following procedures were in effect. The flight originated at the Fairbanks International Airport about 1030. During a telephone conversation with the National Transportation Safety Board (NTSB) investigator-in-charge (IIC), on May 30, the captain reported that he was planning to land on runway 16, at the Nixon Fork Mine airport. The gravel surface runway, about 1,510 feet msl, is about 4,200 feet long. The captain said that the airplane became low on the landing approach, the right wing dropped, and the right main landing gear struck the lip of the runway. The right main landing gear was torn off, which allowed the nose and right wing to collide with the runway surface. The right wing was torn off the fuselage and caught fire. The fuselage, containing the cargo of fuel bladders, slid to a stop and rolled about 90 degrees to the left. The right wing continued to burn for about 1.5 hours. The Carvair ATL-98 airplane has a raised cockpit area, above the fuselage, to allow for the installation and operation of an upward swinging nose door. The Pilot/Operator Aircraft Accident Report (NTSB Form 6120.1) submitted by the pilot, contains a recommendation (How could this accident have been prevented?) section. The pilot indicated that the sight picture in the Carvair is higher than the DC-4, and said, "I think I was lower than I perceived." The captain was making a VFR landing approach to a remote mining airstrip in a modified Douglas DC-4 airplane at the end of a cross-country nonscheduled cargo flight. The modified airplane had a raised cockpit above the fuselage to accommodate an upward swinging nose door. During the landing flare/touchdown, the airplane undershot the runway threshold, and right main landing gear struck the lip of the runway. The right main landing gear was torn off, which allowed the nose and right wing to collide with the runway surface. The right wing was torn off the fuselage and caught fire. The fuselage, containing the cargo of fuel bladders, slid to a stop and rolled about 90 degrees to the left. The pilot indicated that due to the additional cockpit height of the modified airplane, versus a standard Douglas DC-4 airplane, the airplane was lower than he perceived. Source: NTSB Aviation Accident Database (Pre-2008 Archive) Retrieved: 2026-02-12
Verbatim from NTSB's published report. Source file
NTSB_2007_ANC07LA040.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). Sourced from NASA NTRS, NTSB Safety Studies, FAA CAMI, AOPA Air Safety Institute, Embry-Riddle Scholarly Commons, arXiv, and the Semantic Scholar academic graph.
- 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 …
- arXiv 2023 · arXiv preprint
Automating Bird Diverter Installation through Multi-Aerial Robots and Signal Temporal Logic Specifications
This paper tackles the task assignment and trajectory generation problem for bird diverter installation using a fleet of multi-rotors.
- 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 2023 · arXiv preprint
Polycrystallinity enhances stress build-up around ice
Damage caused by freezing wet, porous materials is a widespread problem, but is hard to predict or control. Here, we show that polycrystallinity makes a great difference to the stress build-up process…
- 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…
- Embry-Riddle Scholarly Commons 2021 · Journal article (JAAER)
Analysis on the Negative Emotional, Physiological, and Cognitive Responses Elicited from of the Activation of a Stall Alarm
Failing to identify an aerodynamic stall can lead to the inability of an aircraft to sustain flight. To warn pilots of an impending or fully-developed stall, many aircraft have safety devices installe…
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