B737-800 flight crew reports departing runway 14L from taxiway U2 at ord without verifying that U2 i...

Narrative:

After lengthy and unexpected taxi instructions from ground; I wrote down the instructions and expanded my airport diagram so as not to leave my captain in the lurch. 14L data was not on the tps so; after I made sure my partner knew his way to the runway; I requested tps 14L. Since we were expecting 22L; I entered the new runway in the FMC. Even selected 14LX in the FMC; as X was listed for intersection U2. What neither of us caught was the tps data was for full length 14L. The ensuing takeoff was long! We both realized our mistake; and after the climb went over the tps very carefully. We were probably 4;000 pounds too heavy for the runway. Stop the aircraft before the runway; and make darn certain the correct runway and intersection is what's displayed on the tps and the correct flaps/thrust setting correlates with it. I was distracted by a circuitous and unfamiliar taxi route and I should have asked my captain to take some time; short of the runway to review the unfamiliar data. He was taxiing slowly; but I was still playing catch up.

Original NASA ASRS Text

Title: B737-800 flight crew reports departing Runway 14L from Taxiway U2 at ORD without verifying that U2 is an authorized intersection in the TPS [Takeoff Performance System] preplan. The result is a lift off point very close to the end of the runway.

Narrative: After lengthy and unexpected taxi instructions from ground; I wrote down the instructions and expanded my airport diagram so as not to leave my Captain in the lurch. 14L data was not on the TPS so; after I made sure my partner knew his way to the runway; I requested TPS 14L. Since we were expecting 22L; I entered the new runway in the FMC. Even selected 14LX in the FMC; as X was listed for intersection U2. What neither of us caught was the TPS data was for full length 14L. The ensuing takeoff was long! We both realized our mistake; and after the climb went over the TPS very carefully. We were probably 4;000 pounds too heavy for the runway. Stop the aircraft before the runway; and make darn certain the CORRECT RUNWAY AND INTERSECTION is what's displayed on the TPS and the correct flaps/thrust setting correlates with it. I was distracted by a circuitous and unfamiliar taxi route and I should have asked my Captain to take some time; short of the runway to review the unfamiliar data. He was taxiing slowly; but I was still playing catch up.

Data retrieved from NASA's ASRS site as of July 2013 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.

Attributes
ACN	1093696
Time
Date	201306
Local Time Of Day	0001-0600
Place
Locale Reference	ORD.Airport
State Reference	IL
Aircraft 1
Make Model Name	B737-800
Operating Under FAR Part	Part 121
Flight Phase	Takeoff
Person 1
Function	Pilot Flying First Officer
Qualification	Flight Crew Air Transport Pilot (ATP)
Person 2
Function	Captain Pilot Not Flying
Qualification	Flight Crew Air Transport Pilot (ATP)
Events
Anomaly	Deviation - Procedural Published Material / Policy Deviation - Procedural FAR

B737-800 flight crew reports departing runway 14L from taxiway U2 at ord without verifying that U2 is an authorized intersection in the tps [takeoff performance system] preplan. The result is a lift off point very close to the end of the runway.