Narrative:

Load supervisor advised me that 2 cargo containers in forward compartment may not have been properly secured and may come loose in moderate turbulence. Advised flight of potential center of gravity shift situation via ACARS in the event of rapid descent and proceeded to get more specific numbers. As it turns out 5 cargo contains with total weight of 2842 pounds were at risk of shifting. Had supervisor run in training mode scenario if all 5 containers moved to the most forward position possible. Numbers given by load planning were mac 34.3 vice 33.9 anu 3.6 vice 3.5. It was agreed (with crew) that aircraft would not be out of limits. Passed information to crew relayed by engineering that if they didn't move but came unlatched they would be 1 inch off. If they did move it may cause damage to walls and make noise audible to forward galley and cockpit. Provided crew with reports and CAT alert information of possible moderate turbulence on descent east of sfo. Offered stop option if cockpit felt uncomfortable with the situation. Load supervisor advised ZZZ advised via zone (asked ramp supervisor to call me so I could give him courtesy call regarding the situation so they could prepare data for investigation). Load supervisor and operations apparently advised sfo and sfo manager. Manager and dispatcher advised. Load supervisor had me relay to crew for both pilots to file reports. This report filed prior to landing. Callback conversation with reporter revealed the following information: the reporter stated this station normally has no B777 departures and the loading of the containers and the latching of the container stops was new and may have involved lack of training. The center of gravity was only affected slightly and not a safety of flight problem. The reporter has no information if any damage was incurred on landing at the terminating station.

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Original NASA ASRS Text

Title: A B777 WAS DISPATCHED WITH THE FORWARD CARGO COMPARTMENT CONTAINERS POSSIBLY NOT PROPERLY LATCHED.

Narrative: LOAD SUPVR ADVISED ME THAT 2 CARGO CONTAINERS IN FORWARD COMPARTMENT MAY NOT HAVE BEEN PROPERLY SECURED AND MAY COME LOOSE IN MODERATE TURB. ADVISED FLT OF POTENTIAL CTR OF GRAVITY SHIFT SITUATION VIA ACARS IN THE EVENT OF RAPID DSCNT AND PROCEEDED TO GET MORE SPECIFIC NUMBERS. AS IT TURNS OUT 5 CARGO CONTAINS WITH TOTAL WT OF 2842 LBS WERE AT RISK OF SHIFTING. HAD SUPVR RUN IN TRAINING MODE SCENARIO IF ALL 5 CONTAINERS MOVED TO THE MOST FORWARD POS POSSIBLE. NUMBERS GIVEN BY LOAD PLANNING WERE MAC 34.3 VICE 33.9 ANU 3.6 VICE 3.5. IT WAS AGREED (WITH CREW) THAT ACFT WOULD NOT BE OUT OF LIMITS. PASSED INFO TO CREW RELAYED BY ENGINEERING THAT IF THEY DIDN'T MOVE BUT CAME UNLATCHED THEY WOULD BE 1 INCH OFF. IF THEY DID MOVE IT MAY CAUSE DAMAGE TO WALLS AND MAKE NOISE AUDIBLE TO FORWARD GALLEY AND COCKPIT. PROVIDED CREW WITH RPTS AND CAT ALERT INFO OF POSSIBLE MODERATE TURB ON DSCNT E OF SFO. OFFERED STOP OPTION IF COCKPIT FELT UNCOMFORTABLE WITH THE SITUATION. LOAD SUPVR ADVISED ZZZ ADVISED VIA ZONE (ASKED RAMP SUPVR TO CALL ME SO I COULD GIVE HIM COURTESY CALL REGARDING THE SITUATION SO THEY COULD PREPARE DATA FOR INVESTIGATION). LOAD SUPVR AND OPS APPARENTLY ADVISED SFO AND SFO MGR. MGR AND DISPATCHER ADVISED. LOAD SUPVR HAD ME RELAY TO CREW FOR BOTH PLTS TO FILE RPTS. THIS RPT FILED PRIOR TO LNDG. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: THE RPTR STATED THIS STATION NORMALLY HAS NO B777 DEPS AND THE LOADING OF THE CONTAINERS AND THE LATCHING OF THE CONTAINER STOPS WAS NEW AND MAY HAVE INVOLVED LACK OF TRAINING. THE CTR OF GRAVITY WAS ONLY AFFECTED SLIGHTLY AND NOT A SAFETY OF FLT PROB. THE RPTR HAS NO INFO IF ANY DAMAGE WAS INCURRED ON LNDG AT THE TERMINATING STATION.

Data retrieved from NASA's ASRS site as of January 2009 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.