Narrative:

We landed at ord on apr/xx/96 at about XA30 local on runway 32L without a landing clearance. It was the second leg of an all night, 3 leg trip for the 5TH straight night. Approach control gave us a vector to and cleared us for the ILS runway 32L approach about 8 mi outside the marker and told us to contact ord tower at the marker. I (the first officer) was flying the airplane and was used to using the taxi light on as an indication of landing clearance. On final, seeing the light on, I thought we had been cleared to land. I forgot that this particular captain did not use the procedure for landing clearance confirmation. After landing, when I took control of the radios to get runway clearing instructions, we realized we were still on approach control.

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Original NASA ASRS Text

Title: FLC OF A WDB LANDED WITHOUT CLRNC AFTER FORGETTING TO CONTACT THE TWR AT THE OM AS INSTRUCTED BY APCH CTL.

Narrative: WE LANDED AT ORD ON APR/XX/96 AT ABOUT XA30 LCL ON RWY 32L WITHOUT A LNDG CLRNC. IT WAS THE SECOND LEG OF AN ALL NIGHT, 3 LEG TRIP FOR THE 5TH STRAIGHT NIGHT. APCH CTL GAVE US A VECTOR TO AND CLRED US FOR THE ILS RWY 32L APCH ABOUT 8 MI OUTSIDE THE MARKER AND TOLD US TO CONTACT ORD TWR AT THE MARKER. I (THE FO) WAS FLYING THE AIRPLANE AND WAS USED TO USING THE TAXI LIGHT ON AS AN INDICATION OF LNDG CLRNC. ON FINAL, SEEING THE LIGHT ON, I THOUGHT WE HAD BEEN CLRED TO LAND. I FORGOT THAT THIS PARTICULAR CAPT DID NOT USE THE PROC FOR LNDG CLRNC CONFIRMATION. AFTER LNDG, WHEN I TOOK CTL OF THE RADIOS TO GET RWY CLRING INSTRUCTIONS, WE REALIZED WE WERE STILL ON APCH CTL.

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.