NTSB CAROL · Event
Event DEN91FA127
Registry · N4VH
FAA Aircraft Registry record.
Make / Model
CESSNA 421C
Year of manufacture
1977 · 14 years old at event
Engine
CONT MOTOR GTSI0-520-F-K (435 hp)
Seats / Engines
8 seats · 2 engines
Last airworthiness date
19771208
ADS-B equipped
Yes — Mode-S A4A9D2
Registrant of record
FOSTER CHAD H JR
Source: FAA Aircraft Registry (releasable master file).
Aircraft involved
Probable cause & findings
LOSS OF CONTROL IN FLIGHT AFTER TO THE CABIN DOOR OPENED INADVERTENTLY DURING TAKEOFF RUN.
Factual narrative
WHILE DEPARTING ON A CROSS COUNTRY FLIGHT THE AIRCRAFT WAS OBSERVED TO HAVE AN ABNORMALLY LONG TAKEOFF ROLL AND TO ROTATE ABRUPTLY TO A HIGHER THAN NORMAL NOSE ATTITUDE. INITIAL CLIMB WAS FOLLOWED BY SETTLING WITH A HIGH NOSE ATTITUDE AND THE AIRCRAFT CRASHED APPROXIMATELY ONE MILE BEYOND THE DEPARTURE END OF THE RUNWAY. THE MAIN CABIN DOOR WAS FOUND IN THE UNLOCKED POSITION AND THE LOWER HALF WAS FOUND NEAR THE BEGINNING OF THE WRECKAGE PATH WITH IMPACT DAMAGE. THE TOP HALF WAS FOUND FURTHER DOWN THE WRECKAGE PATH AND HAD SUSTAINED FIRE DAMAGE. THE AEROSTAR HAS AN OBSERVED DRAG AND PITCH PERFORMANCE DEGRADATION IF THE CABIN DOOR OPENS DURING TAKEOFF RUN. Source: NTSB Aviation Accident Database (Pre-2008 Archive) Retrieved: 2026-02-12
Verbatim from NTSB's published report. Source file
NTSB_1991_DEN91FA127.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 ↗