Narrative:

The weight and balance uploaded gave data for a full power flaps 5 take off on runway 31R. The aircraft required nearly all of the 12;467 ft runway. At rotation the aircraft hesitated before a reluctant lift off. The acceleration and climb were very slow and we maintained to power beyond the NADP1 reduction altitude of 1;500 ft until 2;000 ft. The rate of climb was as slow as 300 ft per minute. The first officer did an excellent job of flying the aircraft and responding to input. After climbing to a safe altitude and speed we checked several things and found no crew errors regarding configuration or power settings; so we began to narrow the problem down to either one of two things: take off data or erroneous cargo data. Flaps 5 data is not the norm in bogotá; but the acceleration on the runway took a long time. Very long.

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Original NASA ASRS Text

Title: A B757 required the entire BOG (SKBO) runway length for takeoff so the crew suspected a weight and balance error.

Narrative: The weight and balance uploaded gave data for a full power flaps 5 take off on Runway 31R. The aircraft required nearly all of the 12;467 FT runway. At rotation the aircraft hesitated before a reluctant lift off. The acceleration and climb were very slow and we maintained TO power beyond the NADP1 reduction altitude of 1;500 FT until 2;000 FT. The rate of climb was as slow as 300 FT per minute. The First Officer did an excellent job of flying the aircraft and responding to input. After climbing to a safe altitude and speed we checked several things and found no crew errors regarding configuration or power settings; so we began to narrow the problem down to either one of two things: Take Off Data or erroneous Cargo Data. Flaps 5 data is not the norm in Bogotá; but the acceleration on the runway took a long time. Very long.

Data retrieved from NASA's ASRS site 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.