Narrative:

We took off; first officer (first officer) pilot flying and capt pilot monitoring. At position balsi; I did the initial fuel check after leveling off at FL320 and found that we over burn by approximately 3200 pounds when compared to the flight release. I did take note of the over burn but attributed it to the possible vector/ climb after take-off. After crossing into french fir; we are given direct to several waypoints. Over waypoint etiki at FL340; I did another fuel check and found that we are now over burn by 7900 pounds. I checked the numbers on the flight release and weight and balance (wb) and everything matched up normally except for the burn. I immediately contacted [dispatch] and voiced my concern and to have him check his end. Over waypoint n47w013; 24 mins pass etiki; we are now over burned by 9300 pounds and total fuel down by almost 7000 pounds. I rechecked the paperwork and fuel system and everything is normal. I then went down to the main deck and check the pallet tags; all the numbers matched the wb form except there were no unit of measurements. I came back up and woke the load master and asked him if these pallets tags are in pounds or kilograms. He said; 'kilograms'. The payload on the wb should have read 243556 pounds instead of 110475 pounds. The same incorrect weight of 110475 pounds was also incorrectly reported to ops since the payload on the flight release also show the incorrect weight of 117000 pounds (software accepted our numbers). I then informed [dispatch] of my findings and he concurred. I then request a diversion airport since we will not make our destination with the remaining fuel. We diverted to kjfk without further incident. Afterwards; I asked my IOE student if he felt anything unusual during rotation and he said no even though our performance numbers were off by 133;081 pounds. All the numbers were wrong; wb; flight release; software; takeoff landing report.

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Original NASA ASRS Text

Title: Flight crew of large turbojet discovered a weight discrepancy during flight due to the incorrect conversion of pounds to kilograms. Flight diverted for excessive fuel burn.

Narrative: We took off; First Officer (FO) Pilot Flying and Capt Pilot Monitoring. At position BALSI; I did the initial fuel check after leveling off at FL320 and found that we over burn by approximately 3200 LBS when compared to the Flight Release. I did take note of the over burn but attributed it to the possible vector/ climb after take-off. After crossing into French FIR; we are given direct to several waypoints. Over waypoint ETIKI at FL340; I did another fuel check and found that we are now over burn by 7900 LBS. I checked the numbers on the Flight Release and Weight and Balance (WB) and everything matched up normally except for the burn. I immediately contacted [dispatch] and voiced my concern and to have him check his end. Over waypoint N47W013; 24 mins pass ETIKI; we are now over burned by 9300 LBS and total fuel down by almost 7000 LBS. I rechecked the paperwork and fuel system and everything is normal. I then went down to the main deck and check the pallet tags; all the numbers matched the WB form except there were no unit of measurements. I came back up and woke the Load Master and asked him if these pallets tags are in pounds or kilograms. He said; 'Kilograms'. The payload on the WB should have read 243556 LBS instead of 110475 LBS. The same incorrect weight of 110475 LBS was also incorrectly reported to Ops since the payload on the Flight Release also show the incorrect weight of 117000 LBS (software accepted our numbers). I then informed [dispatch] of my findings and he concurred. I then request a diversion airport since we will not make our destination with the remaining fuel. We diverted to KJFK without further incident. Afterwards; I asked my IOE student if he felt anything unusual during rotation and he said no even though our performance numbers were off by 133;081 LBS. All the numbers were wrong; WB; Flight Release; software; Takeoff Landing Report.

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.