Notes on verification

Aviation-safety.net independently corroborates the core claim of one survivor, matching the Wikipedia crash article. However, a separate Wikipedia article on the lake itself contradicts this with different casualty figures and cause, indicating some inconsistency in secondary sourcing that slightly lowers confidence. [tier=unverified indep_score=0.375 clusters=1 claim_tier=notable] [kind-backfill 2026-09-15: kind=empirical eligibility=high] [harvest 2026-09-17: +4 source(s) on new hosts; tier unverified->silver indep=0.85 clusters=4]