Narrative:

It was the 7TH leg of the 2ND day of a 2-DAY trip in which we received an 8 hour reduced rest overnight. We were inbound to atlanta on the last leg and the entire crew was exhausted from our horrible schedule. It was a normal visual approach to runway 26R in atl where we were told to contact tower at the marker. The captain was handling the radios as I was the PF. There was a distraction in the cockpit and I thought the captain had completed the 500 ft check which includes verifying cleared to land, but I guess not. We landed while still on approach frequency. Upon exiting the runway, the captain realized it and switched to tower. We then continued to the gate as normal. We called the tower by phone afterwards and the tower chief said there was no conflict at all, and in fact we were cleared to land, we just didn't acknowledge it. I think the major problem is in the schedule we had flown, our fatigue was certainly a contributing factor. I think safety could be greatly increased if schedules allowed proper rest at overnights and considered human factors a little bit more.

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Original NASA ASRS Text

Title: ACR ATR72 FLC FAILED TO VERIFY CLRNC TO LAND PRIOR TO TOUCHDOWN. FLC REALIZE THEY HAD RADIO STILL TUNED TO APCH CTL WHEN TURNING OFF RWY. CONVERSATION WITH TWR SUPVR CONFIRMED THEY WERE CLRED TO LAND, EVEN THOUGH THEY DID NOT ACKNOWLEDGE CLRNC.

Narrative: IT WAS THE 7TH LEG OF THE 2ND DAY OF A 2-DAY TRIP IN WHICH WE RECEIVED AN 8 HR REDUCED REST OVERNIGHT. WE WERE INBOUND TO ATLANTA ON THE LAST LEG AND THE ENTIRE CREW WAS EXHAUSTED FROM OUR HORRIBLE SCHEDULE. IT WAS A NORMAL VISUAL APCH TO RWY 26R IN ATL WHERE WE WERE TOLD TO CONTACT TWR AT THE MARKER. THE CAPT WAS HANDLING THE RADIOS AS I WAS THE PF. THERE WAS A DISTR IN THE COCKPIT AND I THOUGHT THE CAPT HAD COMPLETED THE 500 FT CHK WHICH INCLUDES VERIFYING CLRED TO LAND, BUT I GUESS NOT. WE LANDED WHILE STILL ON APCH FREQ. UPON EXITING THE RWY, THE CAPT REALIZED IT AND SWITCHED TO TWR. WE THEN CONTINUED TO THE GATE AS NORMAL. WE CALLED THE TWR BY PHONE AFTERWARDS AND THE TWR CHIEF SAID THERE WAS NO CONFLICT AT ALL, AND IN FACT WE WERE CLRED TO LAND, WE JUST DIDN'T ACKNOWLEDGE IT. I THINK THE MAJOR PROB IS IN THE SCHEDULE WE HAD FLOWN, OUR FATIGUE WAS CERTAINLY A CONTRIBUTING FACTOR. I THINK SAFETY COULD BE GREATLY INCREASED IF SCHEDULES ALLOWED PROPER REST AT OVERNIGHTS AND CONSIDERED HUMAN FACTORS A LITTLE BIT MORE.

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.