ANC92LA015
1991-11-08 · ANCHORAGE, Alaska, United States · None · 1 aircraft · Status: Completed
Airport AK12
Current FAA registration · N4285H
- Make / Model
- PIPER PA-14
- Year of manufacture
- 1948 · 43 years old at event
- Engine
- LYCOMING O-320 SERIES (150 hp)
- Seats / Engines
- 4 seats · 1 engine
- Last airworthiness date
- 20251208
- ADS-B equipped
- Yes — Mode-S A51C66
Source: FAA Aircraft Registry (releasable master file).
Aircraft involved
Probable cause & findings
THE PILOT'S LOSS OF CONTROL DURING FINAL APPROACH WHEN HIS ATTENTION WAS DIVERTED TO TRYING TO OPERATE THE VERNIER THROTTLE. CONTRIBUTING TO THE ACCIDENT WAS THE PILOT'S LACK OF FAMILIARITY WITH THE AIRCRAFT AND HIS FAILURE TO MAINTAIN DIRECTIONAL CONTROL OF THE AIRPLANE ON THE GROUND.
Factual narrative
THE PRIVATE PILOT STATED THAT, JUST BEFORE TOUCHDOWN, HE MADE AN UNSUCCESSFUL ATTEMPT TO MANIPULATE THE VERNIER TYPE THROTTLE IN ORDER TO SLOW HIS HIGH DESCENT RATE. THE AIRPLANE SUBSEQUENTLY LANDED HARD, BOUNCED BACK INTO THE AIR, STALLED, AND COLLIDED WITH TWO PARKED AIRPLANES. THE PILOT HAD JUST BOUGHT THE AIRPLANE AND HAD ONLY ABOUT 2 HOURS IN THIS TYPE AIRPLANE. HE SAID HE WAS NOT FAMILIAR WITH THE VERNIER TYPE THROTTLE WHICH HAD BEEN ILLEGALLY INSTALLED IN THE AIRPLANE SOMETIME BEFORE HE BOUGHT IT. Source: NTSB Aviation Accident Database (Pre-2008 Archive) Retrieved: 2026-02-12
Verbatim from NTSB's published report. Source file
NTSB_1991_ANC92LA015.txt.
Findings + structured fields enriched from FAA avall.mdb.
Full investigation docket on
data.ntsb.gov ↗.
Search this event elsewhere
External sources are reported, not agency: signal that something happened, not fact about what happened.
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Related research
Matched on aircraft type or causal vocabulary (stall, loss of control). All research papers
- Semantic Scholar 2016 · Article (Interacción) Trajectory Recovery System: Angle of Attack Guidance for Inflight Loss of Control
This paper describes the design and development of an ecological display to aid pilots in the recovery of an In-Flight Loss of Control event due to a Stall (ILOC-S).
- NTSB Aircraft Accident Reports 2010 · Accident report Loss of Control on Approach — Colgan Air Flight 3407
Colgan Air 3407 / Continental Connection (Q400) Buffalo NY, February 12, 2009 — 50 fatalities. Definitive investigation of the Colgan 3407 stall-stick-pusher crash on approach to Buffalo.
- 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 …
- 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.
- Semantic Scholar 2024 · Article (International Conference on Networking and Services) Risk Assessment of Loss of Control In-Flight Trajectories for Urban Air Mobility Safety
In Urban Air Mobility (UAM), maintaining a minimum separation between aircraft is a safety requirement, which becomes challenging amidst congested air traffic and off-nominal conditions, such as Loss …