§ Mr. Hayhoeasked the Secretary of State for Trade how many take-offs from 577W Heathrow during 1976 exceeded the specified noise limits; and which aircraft and airlines have the worst records.
§ Mr. Clinton DavisDuring 1976 there were 125,647 jet take-offs from Heathrow of which 2,556–2.03 per cent.—exceeded the permitted noise limits of 110 PNdB during the day and 102 PNdB at night.
The airlines and types of aircraft which infringed on the greater number of occasions are shown in the following table:
Number of infringements Percentage of total infringements Airline British Airways (European Division) 1,144 44.75 Trans World Airlines 370 14.47 British Airways (Overseas Division) 354 13.84 Pan American Airways 68 2.66 Aircraft Trident 1,130 44.02 Boeing707 821 32.12 Boeing 747 196 7.66 Super VC10 124 4.85