Narrative:

I was the PF on a visual approach to ZZZ on an air ambulance flight. We were a lifeguard flight and are usually given priority due to this and cleared to land on the larger and closer runway (runway 35R). When approach control handed us over to ZZZ tower my captain (PNF) was working the radio and they cleared us on runway 35L. The captain also read this back to the tower (as he heard in the tower tapes). I was busy flying and looking for VFR traffic that was shooting practice approachs on runway 35R (ILS). I thought I heard us cleared for a visual and to land on runway 35R, so I continued my approach to runway 35R. The captain did not say anything to the contrary. On a short left base for runway 35R, I saw traffic on final for runway 35R (a C172). I pointed it out to the captain and he and I both thought this was the traffic practicing ILS approachs and that this traffic would be going missed approach. Since we were much faster and the tower didn't say anything except for a TA, we continued and landed on runway 35R. Upon contacting ground, we were told to contact the tower. The captain called the tower and also went up to the tower to talk to everyone involved.

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Original NASA ASRS Text

Title: FO OF AN AMB SMT JET LANDED ON THE WRONG PARALLEL RWY DUE TO HABIT INSTEAD OF LISTENING TO THE ACTUAL CLRNC GIVEN BY THE CTLR. THIS MISTAKE CAUSED A C172 ON FINAL TO GAR.

Narrative: I WAS THE PF ON A VISUAL APCH TO ZZZ ON AN AIR AMBULANCE FLT. WE WERE A LIFEGUARD FLT AND ARE USUALLY GIVEN PRIORITY DUE TO THIS AND CLRED TO LAND ON THE LARGER AND CLOSER RWY (RWY 35R). WHEN APCH CTL HANDED US OVER TO ZZZ TWR MY CAPT (PNF) WAS WORKING THE RADIO AND THEY CLRED US ON RWY 35L. THE CAPT ALSO READ THIS BACK TO THE TWR (AS HE HEARD IN THE TWR TAPES). I WAS BUSY FLYING AND LOOKING FOR VFR TFC THAT WAS SHOOTING PRACTICE APCHS ON RWY 35R (ILS). I THOUGHT I HEARD US CLRED FOR A VISUAL AND TO LAND ON RWY 35R, SO I CONTINUED MY APCH TO RWY 35R. THE CAPT DID NOT SAY ANYTHING TO THE CONTRARY. ON A SHORT L BASE FOR RWY 35R, I SAW TFC ON FINAL FOR RWY 35R (A C172). I POINTED IT OUT TO THE CAPT AND HE AND I BOTH THOUGHT THIS WAS THE TFC PRACTICING ILS APCHS AND THAT THIS TFC WOULD BE GOING MISSED APCH. SINCE WE WERE MUCH FASTER AND THE TWR DIDN'T SAY ANYTHING EXCEPT FOR A TA, WE CONTINUED AND LANDED ON RWY 35R. UPON CONTACTING GND, WE WERE TOLD TO CONTACT THE TWR. THE CAPT CALLED THE TWR AND ALSO WENT UP TO THE TWR TO TALK TO EVERYONE INVOLVED.

Data retrieved from NASA's ASRS site as of July 2007 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.