Runway Excursion Investigation and Notification
A turboprop on a domestic scheduled flight lands long on a wet runway, overruns onto the RESA, and comes to rest with the nose gear collapsed. There are 2 serious injuries among 48 occupants, the aircraft is substantially damaged, and the runway is closed for 5 hours. The operator's safety manager learns of the event 40 minutes after occurrence and begins internal fact-finding. The State of Occurrence is the same State as the operator's State of Registry. The investigation authority has not yet been notified. The safety manager wants to interview the crew before anyone else and to release a preliminary statement to the press.
1. What notification and investigation obligations arise, and who leads?
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This is an accident (substantial damage + serious injury). Under Annex 13 and the associated national rules:
- Notification: The State of Occurrence must be notified immediately; the operator must also notify its State of Registry/Operator and the State of Design/Manufacture as applicable. The operator's internal reporting must not delay the statutory notification. The safety manager should ensure the authority is informed at once.
- Who leads: The State of Occurrence leads the investigation (here, the same State as Registry, which simplifies coordination). The operator is a party, not the investigator; it cooperates but does not control the process.
- Crew interviews: The investigation authority controls witness/crew evidence. The operator should not conduct its own interview in a way that contaminates or pre-empts the official process; it may gather its own safety information subject to the authority's direction and any just-culture protections.
- Press: The operator should not release a preliminary statement that assigns cause; public statements should be factual and coordinated with the authority.
2. What immediate safety actions and preservation steps should the operator take?
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- Preserve evidence: Secure the FDR/CVR and protect them from overwrite; preserve the technical log, load sheet, weather, ATC tapes, and crew records. Do not alter the wreckage without authority direction.
- Care for occupants: Medical care, passenger welfare, and next-of-kin notification.
- Notify the authority, insurer, and flag State as required.
- Internal safety action: Suspend or review similar operations (wet-runway landing policy, landing-distance assessment, crew training) pending findings; the operator may issue an internal safety bulletin.
- Just culture: Remind personnel of reporting protections and prohibit punitive use of safety reports.
- Coordinate with the aerodrome operator on runway closure, NOTAM, and RESA inspection.