Narrative:

At the end of 10 plus hours of international night flying, it was the first officer's leg. Vectors for ILS runway 23L at cle were given. On a coupled approach at 1000 ft, we picked up the runway. The lights and reils and VASI for runway 23R were on high intensity. The GS for runway 23L and VASI for runway 23R are the same. The first officer lined up and landed on runway 23R. Their runways are only about 200 ft apart. It was blowing snow and the runway 5 were snow covered. I was staying inside watching the speed as we were getting about 10 KTS fluctuation. We were on GS. The controller advised us only after we were taxiing in that we landed on the wrong runway. He said it was no problem and that he should not have had the lights for runway 23R on that bright. Problems: tired crew, runways close together, snow covered runways, lights bright on runway 23R. VASI 23R agrees with GS on runway 23L. Supplemental information from acn 260635: we started to get quite a bit of turbulence (plus or minus 10 KTS airspeed fluctuation). I disconnected the autoplt/automatic throttles and flew the airplane myself. Ground was snow covered and there was blowing snow. Runway lights runway 23L were at a lower setting. Contributing factors were: 1) crew was tired, 2) no ATIS information to indicate that runway 23R was also open, 3) turbulence on the approach, 4) poor visibility on ground due to blowing snow making runway lights difficult to discern, 5) VASI and reils on runway 23R on and MALSR off on runway 23L.

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Original NASA ASRS Text

Title: FLC OF AN MLG ACR ACFT INADVERTENTLY LANDED ON THE WRONG PARALLEL RWY FROM A NIGHT INST APCH. FLC BEHAVIOR FATIGUE.

Narrative: AT THE END OF 10 PLUS HRS OF INTL NIGHT FLYING, IT WAS THE FO'S LEG. VECTORS FOR ILS RWY 23L AT CLE WERE GIVEN. ON A COUPLED APCH AT 1000 FT, WE PICKED UP THE RWY. THE LIGHTS AND REILS AND VASI FOR RWY 23R WERE ON HIGH INTENSITY. THE GS FOR RWY 23L AND VASI FOR RWY 23R ARE THE SAME. THE FO LINED UP AND LANDED ON RWY 23R. THEIR RWYS ARE ONLY ABOUT 200 FT APART. IT WAS BLOWING SNOW AND THE RWY 5 WERE SNOW COVERED. I WAS STAYING INSIDE WATCHING THE SPD AS WE WERE GETTING ABOUT 10 KTS FLUCTUATION. WE WERE ON GS. THE CTLR ADVISED US ONLY AFTER WE WERE TAXIING IN THAT WE LANDED ON THE WRONG RWY. HE SAID IT WAS NO PROB AND THAT HE SHOULD NOT HAVE HAD THE LIGHTS FOR RWY 23R ON THAT BRIGHT. PROBS: TIRED CREW, RWYS CLOSE TOGETHER, SNOW COVERED RWYS, LIGHTS BRIGHT ON RWY 23R. VASI 23R AGREES WITH GS ON RWY 23L. SUPPLEMENTAL INFORMATION FROM ACN 260635: WE STARTED TO GET QUITE A BIT OF TURB (PLUS OR MINUS 10 KTS AIRSPD FLUCTUATION). I DISCONNECTED THE AUTOPLT/AUTO THROTTLES AND FLEW THE AIRPLANE MYSELF. GND WAS SNOW COVERED AND THERE WAS BLOWING SNOW. RWY LIGHTS RWY 23L WERE AT A LOWER SETTING. CONTRIBUTING FACTORS WERE: 1) CREW WAS TIRED, 2) NO ATIS INFO TO INDICATE THAT RWY 23R WAS ALSO OPEN, 3) TURB ON THE APCH, 4) POOR VISIBILITY ON GND DUE TO BLOWING SNOW MAKING RWY LIGHTS DIFFICULT TO DISCERN, 5) VASI AND REILS ON RWY 23R ON AND MALSR OFF ON RWY 23L.

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.