31 Jan 1989: US government reveals more than 100 flaws in airport security.
1 April: Lockerbie victims' committee called UK Families Flight 103 set up.
10 May 1990: PanAm reaches out-of-court settlement with Scottish families of dead.
16 Oct 1991: US Supreme Court rejects appeal for punitive damages against PanAm by relatives of victims.
14 Nov: Charges against Libyans Ali Basset al-Magrahi and al-Amin Khalifa Fhimah announced in Washington and Edinburgh.
15 Nov: Libya calls for international inquiry, offers to send dispute to neutral bodies.
22 Jan 1992: UN resolution urges Libya to comply with extradition or face sanctions.
31 March: UN tells Libyan leader Colonel Muammar Gaddafi (left) to surrender suspects by 15 April or face worldwide ban on air travel and arms sales.
15 April: UN air and arms embargo takes effect.
8 April 1993: UN retains sanctions against Libya.
13 August: US, France and Britain threaten Libya with tougher sanctions by 1 October.
1 Oct: UN deadline for Libya to surrender the two suspects for trial expires.
2 Oct: Britain, France and the United States stiffen sanctions.
17 Feb 1994: Britain rejects offer by Libya to allow suspects to stand trial before Muslim court anywhere in the world.
23 March 1995: US offers $4m reward for information leading to arrest.
Nov: Families secure out-of-court settlements from PanAm's insurers.
April 1996: Libyan suspects agree to trial under Scottish law in neutral location.
10 July: UN sanctions begin to weaken.
Oct: Victim's father Jim Swire (centre) meets South African President, Nelson Mandela (right).
25 Oct: At Commonwealth conference in Edinburgh, Mr Mandela urges Britain and US to accept a trial in neutral state.
28 Oct: In Commons, Tony Blair insists Libyans should stand trial in Scotland.
20 April 1998: Mr Swire travels to Libya with Scottish law expert Professor Robert Black to broker terms of trial.
18 Aug: BAe reported to be negotiating aircraft deal with Libya.Reuse content