HC Deb 01 May 1974 vol 872 c468W
39. Mr. Onslow

asked the Secretary of State for Trade how many incidents of rooftile displacements have been recorded in the area under the eastern approaches to Heathrow airport in each of the last five years.

Mr. Clinton Davis

The numbers of incidents known to my Department are:

1969 … … 1
1970 … … Nil
1971 … … 3
1972 … … 10
1973 … … 8
1974 to end April … … Nil

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