Date:	Tuesday 20 May 1986
Time:
Type:	McDonnell Douglas DC-9
Owner/operator:	Finnair
Registration:
MSN:
Fatalities:	Fatalities: 0 / Occupants: 100
Aircraft damage:	None
Category:	UI
Location:	Oulu Airport (OUL) -   Finland
Phase:	Standing
Nature:	Passenger - Scheduled
Departure airport:	Oulu Airport (OUL/EFOU)
Destination airport:	Helsinki-Vantaa Airport (HEL/EFHK)

Narrative:
A man with a pistol, later determined to be a starter's pistol, forced his way aboard Finnair Flight 509, a DC-9 aircraft, at Oulu, Finland, as it was preparing for departure to Helsinki with 95 passengers and five crew members. The hijacker described as being mentally disturbed, released all the passengers within a half hour but continued to hold the crewmembers.
He did not state a destination for the aircraft but demanded that a television crew be brought aboard the aircraft to publicize a statement about the treatment of psychiatric patients in Finland. Police officers, disguised as television crewmembers, boarded the aircraft and apprehended the hijacker. There were no injuries during the incident.

Criminal Acts Against Civil Aviation 1986 / U.S. Department of Transport, FAA, Office of Civil Aviation Security

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