The TSB considers missing aircraft to be
Why this is the answer
A missing aircraft is classified by the TSB as a reportable aviation accident, not merely an incident, so it must be reported (TC AIM-GEN). Treating it as a non-reportable occurrence is the trap.
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.