|37000 Feet||Browse and search NASA's
Aviation Safety Reporting System
|Local Time Of Day||1801 To 2400|
|Locale Reference||airport : pit|
|Altitude||agl bound lower : 0|
agl bound upper : 0
|Operator||common carrier : air carrier|
|Make Model Name||Medium Large Transport|
|Flight Phase||ground : parked|
|Affiliation||company : air carrier|
|Function||flight crew : captain|
oversight : pic
|Qualification||pilot : atp|
|Experience||flight time last 90 days : 100|
flight time total : 15000
|Affiliation||company : air carrier|
|Function||flight crew : first officer|
|Qualification||pilot : commercial|
pilot : instrument
|Anomaly||other anomaly other|
|Independent Detector||other flight crewa|
|Air Traffic Incident||other|
Aircraft slid backwards while parked at gate. The nose wheel was chocked and the brakes were released as per procedure. I was signing the aircraft log book when I heard a noise from the cabin. Looking up, I noticed movement of the jetway. Actually, the jetway wasn't moving, the aircraft was sliding rearward. The brakes were applied by both myself and the first officer. The aircraft stopped, brakes were set. The aircraft was towed back to original parking spot and the remaining passenger deplaned. Luckily, no passenger were hurt and the aircraft sustained no damage. Large credit is due to the F/a's quick reaction in stopping the passenger from deplaning. I recommend 3 corrective actions in order to avoid such future incidents: chock main gear when only one is to be chocked, have ramp chocking area cleared of ice and snow or sanded as appropriate, and leave parking brakes set until all passenger have deplaned. Callback conversation with reporter revealed the following: ramp was covered with sleet and the reporter said it was reasonable level. Nose chock had been placed tight against the nose wheel both front and back. First officer was the first to notice movement of the aircraft and set the parking brake. Company has investigated the incident and has changed the procedure to leave the parking brake on during winter months. Should solve the problem.
Original NASA ASRS Text
Title: ACFT PARKED AT GATE, BRAKES OFF PER COMPANY PROC, SLIDES BACK, NO DAMAGE.
Narrative: ACFT SLID BACKWARDS WHILE PARKED AT GATE. THE NOSE WHEEL WAS CHOCKED AND THE BRAKES WERE RELEASED AS PER PROC. I WAS SIGNING THE ACFT LOG BOOK WHEN I HEARD A NOISE FROM THE CABIN. LOOKING UP, I NOTICED MOVEMENT OF THE JETWAY. ACTUALLY, THE JETWAY WASN'T MOVING, THE ACFT WAS SLIDING REARWARD. THE BRAKES WERE APPLIED BY BOTH MYSELF AND THE F/O. THE ACFT STOPPED, BRAKES WERE SET. THE ACFT WAS TOWED BACK TO ORIGINAL PARKING SPOT AND THE REMAINING PAX DEPLANED. LUCKILY, NO PAX WERE HURT AND THE ACFT SUSTAINED NO DAMAGE. LARGE CREDIT IS DUE TO THE F/A'S QUICK REACTION IN STOPPING THE PAX FROM DEPLANING. I RECOMMEND 3 CORRECTIVE ACTIONS IN ORDER TO AVOID SUCH FUTURE INCIDENTS: CHOCK MAIN GEAR WHEN ONLY ONE IS TO BE CHOCKED, HAVE RAMP CHOCKING AREA CLRED OF ICE AND SNOW OR SANDED AS APPROPRIATE, AND LEAVE PARKING BRAKES SET UNTIL ALL PAX HAVE DEPLANED. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING: RAMP WAS COVERED WITH SLEET AND THE RPTR SAID IT WAS REASONABLE LEVEL. NOSE CHOCK HAD BEEN PLACED TIGHT AGAINST THE NOSE WHEEL BOTH FRONT AND BACK. F/O WAS THE FIRST TO NOTICE MOVEMENT OF THE ACFT AND SET THE PARKING BRAKE. COMPANY HAS INVESTIGATED THE INCIDENT AND HAS CHANGED THE PROC TO LEAVE THE PARKING BRAKE ON DURING WINTER MONTHS. SHOULD SOLVE THE PROB.
Data retrieved from NASA's ASRS site as of August 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.