Narrative:

Sat at gate while loading of bags took longer than normal. Cart after cart arrived and they shut and opened doors repeatedly. Asked gate mechanic if short on manpower and said maybe but he had not seen so many bags put on the B737, that they were looking for places to put the bags. Taxied away from gate and got final weights very quickly. Loaded final weights into FMC and weight dropped a little from planned as did the passenger count. Takeoff roll on runway 32L was normal. Weight was approximately 116000 pounds. Captain was flying. Rotation appeared normal. Called for gear up, first officer pulled gear and just as his hand left gear handle, we got a momentary stick shaker at 164 KTS on the speed tape. Captain immediately lowered nose slightly and increased power. All done simultaneously. Stick shaker stopped. Aircraft felt a little mushy and much heavier than a 116000 pound airplane should have. We were at flaps 1 degree and all leading edge and trailing flaps showed green, down and locked. Continued climb uneventfully. Contacted dispatch and asked them to contact load planning at ord to doublechk the weights. The first time they said all was ok and checked out. Upon climbing out of FL325 at speed .74 mach, we were only getting 300-700 FPM. This is definitely not normal for a 112000 pound aircraft (approximately weight after climb). Contacted dispatch again and asked to follow up on this. He got back to us after a couple of mins and said ord is now saying ord misstated load by at least 1500 pounds as 37 of the bags, etc, were heavier than normal. I really feel that the weight was off more than that as aircraft performed like a much heavier aircraft. Called and told them of our stick shaker and made the appropriate logbook entry. Landing at slc was uneventful, but I did add an extra 10 KTS to the speed card just as a safety precaution and landed on their longest runway. Supplemental information from acn 584524: as I took my hand off the gear handle, the stick shaker went off. I immediately noted a speed of 164 KIAS (V2 +16 KTS at 116000 to weight) and pitch attitude was normal for this stage of climb. The captain lowered pitch slightly and pushed throttles up and the stick shaker stopped. Total duration of shaker was about 1 second. The remainder of flight was normal except that airplane seemed much heavier than the weights we were given. The captain later told me the mechanic commented before push that he had never seen so much stuff put on a guppy and that we appeared cubed out in the pits. We contacted dispatch and asked him to verify our weights, and we then contacted maintenance controller and wrote up stick shaker. Landing at slc was uneventful although we added speed for the potential increased weight. It is my opinion that the aircraft weight was much more than the weights received from load planning.

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Original NASA ASRS Text

Title: B737-500 CREW GOT A MOMENTARY STICK SHAKER AT V2 +16 KTS JUST AFTER LIFTOFF AT ORD.

Narrative: SAT AT GATE WHILE LOADING OF BAGS TOOK LONGER THAN NORMAL. CART AFTER CART ARRIVED AND THEY SHUT AND OPENED DOORS REPEATEDLY. ASKED GATE MECH IF SHORT ON MANPOWER AND SAID MAYBE BUT HE HAD NOT SEEN SO MANY BAGS PUT ON THE B737, THAT THEY WERE LOOKING FOR PLACES TO PUT THE BAGS. TAXIED AWAY FROM GATE AND GOT FINAL WTS VERY QUICKLY. LOADED FINAL WTS INTO FMC AND WT DROPPED A LITTLE FROM PLANNED AS DID THE PAX COUNT. TKOF ROLL ON RWY 32L WAS NORMAL. WT WAS APPROX 116000 LBS. CAPT WAS FLYING. ROTATION APPEARED NORMAL. CALLED FOR GEAR UP, FO PULLED GEAR AND JUST AS HIS HAND LEFT GEAR HANDLE, WE GOT A MOMENTARY STICK SHAKER AT 164 KTS ON THE SPD TAPE. CAPT IMMEDIATELY LOWERED NOSE SLIGHTLY AND INCREASED PWR. ALL DONE SIMULTANEOUSLY. STICK SHAKER STOPPED. ACFT FELT A LITTLE MUSHY AND MUCH HEAVIER THAN A 116000 LB AIRPLANE SHOULD HAVE. WE WERE AT FLAPS 1 DEG AND ALL LEADING EDGE AND TRAILING FLAPS SHOWED GREEN, DOWN AND LOCKED. CONTINUED CLB UNEVENTFULLY. CONTACTED DISPATCH AND ASKED THEM TO CONTACT LOAD PLANNING AT ORD TO DOUBLECHK THE WTS. THE FIRST TIME THEY SAID ALL WAS OK AND CHKED OUT. UPON CLBING OUT OF FL325 AT SPD .74 MACH, WE WERE ONLY GETTING 300-700 FPM. THIS IS DEFINITELY NOT NORMAL FOR A 112000 LB ACFT (APPROX WT AFTER CLB). CONTACTED DISPATCH AGAIN AND ASKED TO FOLLOW UP ON THIS. HE GOT BACK TO US AFTER A COUPLE OF MINS AND SAID ORD IS NOW SAYING ORD MISSTATED LOAD BY AT LEAST 1500 LBS AS 37 OF THE BAGS, ETC, WERE HEAVIER THAN NORMAL. I REALLY FEEL THAT THE WT WAS OFF MORE THAN THAT AS ACFT PERFORMED LIKE A MUCH HEAVIER ACFT. CALLED AND TOLD THEM OF OUR STICK SHAKER AND MADE THE APPROPRIATE LOGBOOK ENTRY. LNDG AT SLC WAS UNEVENTFUL, BUT I DID ADD AN EXTRA 10 KTS TO THE SPD CARD JUST AS A SAFETY PRECAUTION AND LANDED ON THEIR LONGEST RWY. SUPPLEMENTAL INFO FROM ACN 584524: AS I TOOK MY HAND OFF THE GEAR HANDLE, THE STICK SHAKER WENT OFF. I IMMEDIATELY NOTED A SPD OF 164 KIAS (V2 +16 KTS AT 116000 TO WT) AND PITCH ATTITUDE WAS NORMAL FOR THIS STAGE OF CLB. THE CAPT LOWERED PITCH SLIGHTLY AND PUSHED THROTTLES UP AND THE STICK SHAKER STOPPED. TOTAL DURATION OF SHAKER WAS ABOUT 1 SECOND. THE REMAINDER OF FLT WAS NORMAL EXCEPT THAT AIRPLANE SEEMED MUCH HEAVIER THAN THE WTS WE WERE GIVEN. THE CAPT LATER TOLD ME THE MECH COMMENTED BEFORE PUSH THAT HE HAD NEVER SEEN SO MUCH STUFF PUT ON A GUPPY AND THAT WE APPEARED CUBED OUT IN THE PITS. WE CONTACTED DISPATCH AND ASKED HIM TO VERIFY OUR WTS, AND WE THEN CONTACTED MAINT CTLR AND WROTE UP STICK SHAKER. LNDG AT SLC WAS UNEVENTFUL ALTHOUGH WE ADDED SPD FOR THE POTENTIAL INCREASED WT. IT IS MY OPINION THAT THE ACFT WT WAS MUCH MORE THAN THE WTS RECEIVED FROM LOAD PLANNING.

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.