Page:CAB Accident Report, United Airlines Flight 21.pdf/17

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recorder did not record this message, due to interference on the line, the control tower operator must have understood, inasmuch as his first recording at 5:42 is in answer to Captain Scott. The complete transcription of all communications between the airport control tower and United 21 are as follows:^[1]

5:42 P. M.^[2]

Tower:	"O.K. United 21 on the northwest leg headed southeast. Wind is north northwest about 8 miles, land northwest and no traffic."
United 21:	"Repeat that wind for United 21."
Tower:	"The wind is north northwest about 8."
United 21:	"North northwest about 8 and landing northwest. Is that right?"
Tower:	"Yes, that is O.K., unless you have a lot of ice and wish to land west."

5:44 P. M.

United 21:	"United 21 to control tower. We will have to circle to get some of this ice off of the windshield."
Tower:	That is O.K. That is all up to you. The wind now north, very slightly north northwest about 10."
United 21:	"O.K., north northwest about 10."

5:46 P. M.

United 21:	"United 21 will land west."
Tower:	"Will land west. O.K. United 21."
United 21:	"O.K. Thank you."

1. In connection with discussion which follows see Figure A opposite page 24.
2. The contact times shown are estimated from the time of the first contact by a re-run of the airport control tower record.