The essentials, at a glance.

A concise reference to the flight, the attack, the human cost and the investigation. Figures are drawn from the public historical record.

Flight
Pan Am 103Pan American World Airways
Route
LHR → JFKLondon Heathrow to New York
Aircraft
Boeing 747-121Wide-body "jumbo jet"
Registration
N739PAClipper Maid of the Seas
Departed
18:25 GMTFrom Heathrow
Time airborne
~38 minBefore the explosion
Date
21 Dec 1988Wednesday evening
Detonation
19:02 GMTBomb in the forward hold
Altitude
31,000 ftClimbing over the border
Explosive
SemtexHidden in a radio-cassette player
Concealed in
SuitcaseAn unaccompanied Samsonite case
Debris field
845 mi²Scotland & N. England
Total lives lost
270The deadliest terror attack in UK history
Aboard
259243 passengers · 16 crew
On the ground
11Residents of Sherwood Crescent
Nations
21Nationalities of the victims
US citizens
190The largest group
Syracuse students
35Returning from a term abroad
Inquiry
Largest in UKLed by Dumfries & Galloway Police with the FBI
Charged
Nov 1991Two Libyan nationals
Trial
Camp ZeistA Scottish court in the Netherlands
Convicted
31 Jan 2001Abdelbaset al-Megrahi
Responsibility
2003Accepted by Libya
Further charge
2020Alleged bomb-maker, later in US custody

For the fuller story, see What Happened, the Timeline and the Aftermath. For where these figures come from, see Sources.