CIRCULAR 60-/55/2 AEiENDMENT NO. 1 23/2/71 AMENDMENT NO. 1 CIRCULAR ON OPERATICNAL MEASURES FOR DWLING WITH THE PROBLDI OF TAKING-OFF FBOK SLUSH - OR WATER--COVERED RUNWAYS AMEND title of Section 6 from 196 - REPORTING AND NOTIFICATIONu 1 - to "6 - KEPORTING, NOTIFICATION AND ACTION TO BE TAKEN" 2. ADD a new paragraph 6.5 as follows - '6.5 A flight shocld not be commenced when the runway is covered with slush unless an assessment of the performance of the aircraft in prevailing conditions shows that the available performance is adequate." - END -