Drilling incident record Worksheet version 1 — Blank working copy Incident identity Incident reference, timestamp and responsible person [Not recorded] Part, drawing revision, material lot and bore [Not recorded] Machine, tool/service history, fixture and program revision [Not recorded] Observed evidence Last acceptable part, first deviation and intervening changes [Not recorded] Observed symptom, depth, sequence and alarms [Not recorded] Signals, units, measurement points and missing data [Not recorded] Chip/tool observations, photographs and inspection references [Not recorded] Investigation and closure Proposed causes and the evidence needed for each [Not recorded] Authorized checks, responsible people and actual findings [Not recorded] Approved changes and documented trial conditions [Not recorded] Independent acceptance results and report references [Not recorded] Unresolved questions, disposition and follow-up [Not recorded]