1.   The bomb failed to hit its target.

2.   The two other bombs failed to explode fully, landing nearby in Mountbatten Green, behind the Foreign and Commonwealth Office.

3.   The RUC say it was only because the bomb failed to function properly that lives were not lost and widespread damage caused to homes and businesses.

4.   But the bomb failed to explode because the timer malfunctioned, and it was dismantled without incident.

5.   The officials said that one of two fuses on top of the plastic drum of the bomb had apparently ignited, but that the bomb had failed to explode.

6.   Another letter says the bomb failed to go off as planned, but detonated when the wheels came out for landing at Ndola, in Northern Rhodesia.

7.   Another letter says the bomb failed to go off as planned and detonated when the wheels came down for landing.