The TSB shall be notified of a reportable aviation accident when
Why this is the answer
All of the listed conditions — a serious or fatal injury from contact with the aircraft, damage requiring major repair or replacement, and an aircraft missing or inaccessible — are reportable accidents to the TSB (TC AIM-GEN). Any one of them triggers the requirement.
Reference
TC AIM-GEN – Accidents
Question reproduced verbatim from Transport Canada’s PSTAR Study and Reference Guide (TP 11919E). The answer key is Transport Canada’s; the explanation is ours.
A study aid — not a substitute for the official guide, the CARs, or your instructor.