NTSB CAROL · Event
Event CHI68D0689
Registry · N45472
FAA Aircraft Registry record.
Make / Model
AIR TRACTOR INC AT-402A
Year of manufacture
1991
TCDS
A17SW · AIR TRACTOR INC
Engine
P&W PT6A SER (750 hp)
Seats / Engines
1 seats · 1 engine
Last airworthiness date
20230412
ADS-B equipped
Yes — Mode-S A58460
Registrant of record
RTC AVIATION LLC
Source: FAA Aircraft Registry (releasable master file).
Aircraft involved
Historical record (pre-1982)
NTSB recorded this accident in the pre-1982 coded-field schema — structured fields rather than free-text narrative. Decoded codes use established NTSB single-letter taxonomies; cause factors remain verbatim pending the Form 6120.4 codebook lookup.
Aircraft
LUSCOMBE 8A · N45472
Damage
Substantial
Craft type
Airplane
Classification
Accident
Light condition
Dawn
Weather
VMC
Phase of flight
D1
Operator type
D
Kind of flying
A3
Weather at impact
Sky
CLEAR
Aircraft history
Total time
847 hrs
Pilot
Certificate
Airline transport
Total hours
45
Age
26
Probable cause (from PRE1982.MDB)
OW.ELBOW AND GASKET BURNED.EXH STACKS RUST PITTED.
Investigator remarks
HOLE IN LFT EXH STACK JUST BELOW NO 2 INTAKE ELB
Cause factors
- 74/C/G6 C POWERPLANT BAFFLES Cause
- 88/C/95 C MISCELLANEOUS ACTS,CONDITIONS MATERIAL FAILURE Cause
- 74/C/KE C POWERPLANT DETONATION Cause
- 83/B/A B TERRAIN WET,SOFT GROUND
- 88/K/94 K MISCELLANEOUS ACTS,CONDITIONS OVERLOAD FAILURE Joint factor
Decoded against the NTSB Form 6120.4 cause-factor codebook (ct_Pre1982 table). Each row shows the raw triplet, modifier (Cause / Factor / etc.), category, and specific code.
Source: NTSB pre-1982 historical archive. Docket
3 0937.
Source file
NTSB_1968_3_0937.txt.
Modern CAROL record 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. 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 2020 · Conference paper
Concurrent Sessions: Session 8A - Technology in Aviation
- arXiv 2020 · arXiv preprint
Continuation Method with the Trusty Time-stepping Scheme for Linearly Constrained Optimization with Noisy Data
The nonlinear optimization problem with linear constraints has many applications in engineering fields such as the visual-inertial navigation and localization of an unmanned aerial vehicle maintaining…
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