HC Deb 30 March 1998 vol 309 c415W
Helen Jackson

To ask the Secretary of State for Defence if an RAF/NATO aircraft was responsible for the two sonic booms above Sheffield detected by Edinburgh University Seismology Unit at 21.52 and 22.06 on 24 March 1997. [36405]

Mr. Spellar

We have no record of sonic events being generated by RAF or NATO aircraft for the evening of 24 March 1997.