HC Deb 07 February 1973 vol 850 c126W
Mr. Adley

asked the Secretary of State for Trade and Industry what he estimates would be the cost of retrofitting, by 1980, those aircraft presently in service by BOAC and BEA, and which will still be in service in 1980.

Mr. Onslow

Studies on retrofit are in progress, but the work is not yet sufficiently far advanced for it to be possible to produce reliable cost estimates.

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