B757-300 first officer reports being given the zero fuel weight by the captain when requesting the t...

Narrative:

During our preflight duties the final weights were printed off of the ACARS. The captain tore it off of the printer and was reviewing it. Since I was already in the performance page I just asked him what the weight was. He gave me a number and I put it into the FMC. A short time later we got our takeoff data and we bugged the speeds. Once we began the takeoff roll and I had called rotate; I noted that the airplane did not seem to want to fly. The captain simply allowed the airplane to fly itself off of the runway and we climbed out normally. A short time later it hit me what had happened. I looked at the final weight manifest and saw that instead of reading me the TOGW; I was instead given the ZFW. This number didn't raise a flag with me at the time since I primarily fly the 757-200. For a full 757-300; that number was entirely too low.

Original NASA ASRS Text

Title: B757-300 First Officer reports being given the zero fuel weight by the Captain when requesting the takeoff weight for V speed calculation. The aircraft does not rotate or lift off at the predicted speeds; but does takeoff and climb normally once the required speed is obtained.

Narrative: During our preflight duties the final weights were printed off of the ACARS. The Captain tore it off of the printer and was reviewing it. Since I was already in the performance page I just asked him what the weight was. He gave me a number and I put it into the FMC. A short time later we got our takeoff data and we bugged the speeds. Once we began the takeoff roll and I had called rotate; I noted that the airplane did not seem to want to fly. The Captain simply allowed the airplane to fly itself off of the runway and we climbed out normally. A short time later it hit me what had happened. I looked at the final weight manifest and saw that instead of reading me the TOGW; I was instead given the ZFW. This number didn't raise a flag with me at the time since I primarily fly the 757-200. For a full 757-300; that number was entirely too low.

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.

Attributes
ACN	1202628
Time
Date	201409
Place
Locale Reference	ZZZ.Airport
State Reference	US
Aircraft 1
Make Model Name	B757 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	Parked
Person 1
Function	First Officer Pilot Not Flying
Experience	Flight Crew Last 90 Days 151 Flight Crew Total 7886 Flight Crew Type 651
Events
Anomaly	Deviation - Procedural Published Material / Policy Deviation - Procedural Weight And Balance Deviation - Speed All Types

B757-300 first officer reports being given the zero fuel weight by the captain when requesting the takeoff weight for V speed calculation. The aircraft does not rotate or lift off at the predicted speeds; but does takeoff and climb normally once the required speed is obtained.