Narrative:

We were on a 10-mile final to slc. We were high due to approach keeping us high on the arrival for departing aircraft. I was in the process of extending the flaps and landing gear. We were approaching a 5-mile final and we were still high. The captain asked me to slow so that we could go to a flaps 40 landing. He then asked me to begin an s-turn. He tried to call to receive clearance for the s-turn; but his transmission was stepped on and approach did not reply. So I did not feel I should perform an s-turn without consent. He then stated that he was taking control of the aircraft and began an immediate; s-turn without approval from approach. I took over the radios and was instructed to switch to tower. Tower then cleared us to land. Preventative measures would be better descent planning; knowing that slc keeps you high during approaches; and better communication with ATC. We should not have executed an s-turn without getting clearance from ATC.

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Original NASA ASRS Text

Title: Air carrier inbound to SLC initiated s-turns on final without prior coordination with ATC; claiming ATC kept them high on the arrival.

Narrative: We were on a 10-mile final to SLC. We were high due to Approach keeping us high on the arrival for departing aircraft. I was in the process of extending the flaps and landing gear. We were approaching a 5-mile final and we were still high. The Captain asked me to slow so that we could go to a Flaps 40 landing. He then asked me to begin an S-turn. He tried to call to receive clearance for the S-turn; but his transmission was stepped on and Approach did not reply. So I did not feel I should perform an S-turn without consent. He then stated that he was taking control of the aircraft and began an immediate; S-turn without approval from Approach. I took over the radios and was instructed to switch to Tower. Tower then cleared us to land. Preventative measures would be better descent planning; knowing that SLC keeps you high during approaches; and better communication with ATC. We should not have executed an S-turn without getting clearance from ATC.

Data retrieved from NASA's ASRS site as of April 2012 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.