WHY DO ACCIDENTS HAPPEN AND
INVESTIGATIONS
| QUESTIONS AND ANSWERS | 2026 UPDATE |
100% CORRECT
Aviation Accident Investigation, Causal Analysis,
and Safety Data Interpretation
Aligned with 2026|2027 NTSB and ICAO Accident Investigation Standards,
AI-Assisted Data Analysis, and Modern Wreckage Mapping Techniques
Aviation and Aeronautical Science Program
[University Name]
2026
, AVIA 300 Quiz 2 | Why Do Accidents Happen and Investigations | 2026 Update Academic Paper
Abstract
This 25-question quiz serves as a comprehensive assessment and definitive study guide
for AVIA 300 students examining why accidents happen and how they are investigated. The
examination systematically evaluates competency across four critical domains: accident
causation theories (Heinrich, Reason, HFACS), the investigation process and regulatory
framework (NTSB Part 830, ICAO Annex 13), root cause analysis methodologies (5 Whys,
Fault Tree Analysis, Fishbone diagrams), and emerging investigation technologies including
AI-assisted data recovery, drone photogrammetry, and digital twins. With a cognitive
distribution of 30% recall, 50% application, and 20% analysis, and 75% scenario-based
vignettes drawn from accident scene analysis, investigation board decision-making, and data
interpretation, this instrument aligns with 2026|2027 NTSB and ICAO investigative protocols
and emerging aviation safety technologies.
Keywords: accident investigation, NTSB, ICAO Annex 13, Swiss Cheese model, HFACS, root
cause analysis, FDR, CVR, probable cause, contributing factors, 49 CFR Part 830, AI-assisted
investigation, drone photogrammetry, digital twins, eVTOL safety, 2026 NTSB updates
Section 1: Theories of Accident Causation (Q1–Q5)
Q1: According to Heinrich's Domino Theory, which of the following represents the correct
sequence of the five dominoes in order?
A. Social Environment → Fault of Person → Unsafe Act/Condition → Accident → Injury
[CORRECT]
B. Unsafe Act/Condition → Fault of Person → Social Environment → Accident → Injury
C. Injury → Accident → Unsafe Act/Condition → Fault of Person → Social Environment
D. Accident → Injury → Fault of Person → Unsafe Act → Social Environment
Correct Answer: A
Rationale: Heinrich's original sequence places social environment first, followed by fault of person,
unsafe act or condition, the accident itself, and finally the injury.
Q2: An NTSB investigator is analyzing a mid-air collision and applies Reason's Swiss Cheese
Model. The investigator identifies that ATC was short-staffed due to budget cuts (latent failure),
and the controller was distracted by a non-operational conversation (active failure). Which
interaction best describes how the accident occurred?
A. Only the active failure caused the accident; latent failures are irrelevant unless they directly
operate the aircraft.
B. The latent failure (organizational decision) created holes in the defensive layers, which
aligned with the active failure (controller distraction), allowing the accident trajectory to
penetrate all remaining defenses. [CORRECT]
C. The Swiss Cheese Model only applies to maintenance-related accidents, not ATC or
operational failures.
D. Latent failures and active failures cannot interact; they exist on independent causal
pathways.
Correct Answer: B
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