NTSB CAROL · Event
Event OAK70D0083
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
BOEING 75 · N67472
Damage
Substantial
Craft type
Airplane
Classification
Accident
Light condition
Dawn
Weather
VMC
Phase of flight
Takeoff — initial climb (C1)
Operator type
Part 135 (air taxi/commuter)
Airport
LOS BANOS
Kind of flying
CB
Weather at impact
Sky
CLEAR
Wind
315° / 5 kt
Temp
95° F
Aircraft history
Serial number
0000075-4991
Total time
6,438 hrs
Pilot
Certificate
Commercial
Total hours
10,450
Age
46
Probable cause (from PRE1982.MDB)
N CAUSED ENG TO SEPARATE FROM ACFT.
Investigator remarks
BLADE BROKE 5 INS FROM BUTT END.EXTREME VIBRATIO
Cause factors
- 74/C/FA C POWERPLANT BLADES Cause
- 88/C/36 C MISCELLANEOUS ACTS,CONDITIONS FATIGUE FRACTURE Cause
- 88/B/CV B MISCELLANEOUS ACTS,CONDITIONS VIBRATION,EXCESSIVE
- 88/K/49 K MISCELLANEOUS ACTS,CONDITIONS SEPARATION IN FLIGHT 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 3504.
Source file
NTSB_1969_3_3504.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 1993 · Journal article (JAAER)
A Cost Analysis: Re-Engining a Boeing 727-200 (Advanced) Versus Buying a New Boeing 757-200
The Boeing 727-200 and 757-200 are both narrowbody aircraft designed for short- to medium-range flights carrying 164 to 214 passengers.
- arXiv 2021 · arXiv preprint
Be Lean -- How to Fit a Model-Based System Architecture Development Process Based on ARP4754 Into an Agile Environment
An emerging service is moving the known aviation sector in terms of technology, paradigms, and key players - the Urban Air Mobility.
- NTSB Aircraft Accident Reports 2019 · Accident report
Embraer ERJ 175 Runway Excursion at Charlotte Douglas
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- NTSB Aircraft Accident Reports 2016 · Accident report
Loss of Control on Approach Atlas Air 5Y3591 N7500A
Multiple loss-of-control approach investigations. Series of approach-loss-of-control case studies bundled into one report — examines somatogravic illusion + mode-confusion contributors in turbulent en…
- arXiv 2026 · arXiv preprint
Impact of Physics-Informed Features on Neural Network Complexity for Li-ion Battery Voltage Prediction in Electric Vertical Takeoff and Landing Aircrafts
The electrification of vertical takeoff and landing aircraft demands high-fidelity battery management systems capable of predicting voltage response under aggressive power dynamics.
- arXiv 2025 · arXiv preprint
Aerobatic maneuvers in insect-scale flapping-wing aerial robots via deep-learned robust tube model predictive control
Aerial insects exhibit highly agile maneuvers such as sharp braking, saccades, and body flips under disturbance. In contrast, insect-scale aerial robots are limited to tracking non-aggressive trajecto…
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