Narrative:

Upon reaching the stop point for gate as indicated by the ground marshal, I stopped the aircraft with foot brakes and set the parking brake to 'on.' the marshal went from the 'full stop' signal to a 'chocks in' signal almost immediately. As my hand was still on the parking brake handle, I proceeded to set the parking brake to 'off.' I then went about my other cockpit duties. Very shortly thereafter, I noticed that the aircraft was moving. I quickly applied foot brakes and stopped the aircraft. I then reset the parking brake to 'on' and secured both engines. When applying the foot brakes, I felt something beneath the aircraft. After deplaning passenger, I inspected the nose area of the aircraft and it appeared that there was slight damage sustained to the forward avionics compartment door and to the #1 DME antenna. There was a pushback tractor in close vicinity that was positioned for the next departure. I asked the ground marshal what had happened and he stated that the small rubber chock that had been placed on the left nosewheel had slipped on the wet, painted ramp, that the chock had ended up to the side and behind where the nosewheels had ended up. Upon returning to the cabin of the aircraft, I asked the 'a' flight attendant if anyone was hurt during the sudden stopping of the aircraft. Flight attendant informed me that 1 female passenger had fallen, but had stated that she was alright before exiting the aircraft. I asked the other 2 flight attendants if they were alright and one flight attendant stated that she had fallen, but was ok. The other flight attendant stated that she was ok also. I made an appropriate logbook entry. Recommend change of SOP and keep parking brake set for all arrs.

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Original NASA ASRS Text

Title: AN A319 CREW, WHILE PARKING THE ACFT AT BOS, EXPERIENCED ACFT MOVEMENT AFTER ACFT WHEEL CHOCKS WERE IN PLACE.

Narrative: UPON REACHING THE STOP POINT FOR GATE AS INDICATED BY THE GND MARSHAL, I STOPPED THE ACFT WITH FOOT BRAKES AND SET THE PARKING BRAKE TO 'ON.' THE MARSHAL WENT FROM THE 'FULL STOP' SIGNAL TO A 'CHOCKS IN' SIGNAL ALMOST IMMEDIATELY. AS MY HAND WAS STILL ON THE PARKING BRAKE HANDLE, I PROCEEDED TO SET THE PARKING BRAKE TO 'OFF.' I THEN WENT ABOUT MY OTHER COCKPIT DUTIES. VERY SHORTLY THEREAFTER, I NOTICED THAT THE ACFT WAS MOVING. I QUICKLY APPLIED FOOT BRAKES AND STOPPED THE ACFT. I THEN RESET THE PARKING BRAKE TO 'ON' AND SECURED BOTH ENGS. WHEN APPLYING THE FOOT BRAKES, I FELT SOMETHING BENEATH THE ACFT. AFTER DEPLANING PAX, I INSPECTED THE NOSE AREA OF THE ACFT AND IT APPEARED THAT THERE WAS SLIGHT DAMAGE SUSTAINED TO THE FORWARD AVIONICS COMPARTMENT DOOR AND TO THE #1 DME ANTENNA. THERE WAS A PUSHBACK TRACTOR IN CLOSE VICINITY THAT WAS POSITIONED FOR THE NEXT DEP. I ASKED THE GND MARSHAL WHAT HAD HAPPENED AND HE STATED THAT THE SMALL RUBBER CHOCK THAT HAD BEEN PLACED ON THE L NOSEWHEEL HAD SLIPPED ON THE WET, PAINTED RAMP, THAT THE CHOCK HAD ENDED UP TO THE SIDE AND BEHIND WHERE THE NOSEWHEELS HAD ENDED UP. UPON RETURNING TO THE CABIN OF THE ACFT, I ASKED THE 'A' FLT ATTENDANT IF ANYONE WAS HURT DURING THE SUDDEN STOPPING OF THE ACFT. FLT ATTENDANT INFORMED ME THAT 1 FEMALE PAX HAD FALLEN, BUT HAD STATED THAT SHE WAS ALRIGHT BEFORE EXITING THE ACFT. I ASKED THE OTHER 2 FLT ATTENDANTS IF THEY WERE ALRIGHT AND ONE FLT ATTENDANT STATED THAT SHE HAD FALLEN, BUT WAS OK. THE OTHER FLT ATTENDANT STATED THAT SHE WAS OK ALSO. I MADE AN APPROPRIATE LOGBOOK ENTRY. RECOMMEND CHANGE OF SOP AND KEEP PARKING BRAKE SET FOR ALL ARRS.

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.