NTSB CAROL · Event
Event ANC03LA028
Registry · N71X
FAA Aircraft Registry record.
Make / Model
STINSON 108-1
Year of manufacture
1946 · 57 years old at event
Engine
FRANKLIN 6A4150 SERIES (150 hp)
Seats / Engines
4 seats · 1 engine
Last airworthiness date
19580725
ADS-B equipped
Yes — Mode-S A97BC1
Registrant of record
PETRAM WILLIAM A TRUSTEE
Source: FAA Aircraft Registry (releasable master file).
Aircraft involved
Probable cause & findings
The pilot's failure to maintain directional control of the airplane during the landing roll, which resulted in an inadvertent ground loop, and the collapse of the right main landing gear.
Factual narrative
On February 11, 2003, about 1205 Alaska standard time, a wheel-equipped Stinson 108-1 airplane, N71X, sustained substantial damage when the right main landing gear collapsed during landing at the Sitka Airport, Sitka, Alaska. The Title 14, CFR Part 91 local area personal flight operated in visual meteorological conditions without a flight plan. The private pilot/airplane owner and the three passengers were not injured. The flight originated at the Sitka Airport about 1130. The NTSB investigator-in-charge had a telephone conversation with the accident pilot on February 12. The pilot related that he was landing on runway 11 in light wind conditions. He estimated the wind to be a direct headwind, about 5 knots or less. He said he made a wheel landing, and when he lowered the tailwheel onto the runway, he was unable to maintain directional control. The airplane subsequently swerved hard to the left, collapsing the right main landing gear, and striking the right wing on the runway. He said that there were no preimpact mechanical problems with the airplane, and he believes he lost directional control because he was going too fast when he lowered the tailwheel onto the runway. His postaccident inspection of the airplane disclosed substantial damage to right main landing gear gearbox and fuselage support structure, and about 3 feet of the right outboard wing and aileron. The pilot reported that he was landing his tailwheel-equipped airplane on a hard-surfaced runway in calm, or nearly calm, wind conditions. The pilot said he made an intentional main gear wheel landing, and kept the tailwheel off the runway for a portion of the landing roll. When he lowered the tailwheel to the runway, he lost directional control, and the airplane swerved to the left. During the ground loop, the right main landing gear collapsed, and the right wing struck the runway. The right wing and the right main landing gear gearbox received substantial damage. The pilot said there were no preimpact mechanical problems with the airplane. The pilot stated that the airplane was going too fast when he elected to lower the tailwheel onto the runway, and he believes the excessive speed precipitated a loss of control. Source: NTSB Aviation Accident Database (Pre-2008 Archive) Retrieved: 2026-02-12
Verbatim from NTSB's published report. Source file
NTSB_2003_ANC03LA028.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.
Browse the full corpus — academia portal ↗