Passenger injuries sustained during aircraft parking procedure.

Attributes
ACN	203151
Time
Date	199202
Day	Fri
Local Time Of Day	1801 To 2400
Place
Locale Reference	airport : ewr
State Reference	NJ
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Flight Conditions	VMC
Light	Night
Aircraft 1
Controlling Facilities	artcc : zma
Operator	common carrier : air carrier
Make Model Name	Large Transport, Low Wing, 2 Turbojet Eng
Navigation In Use	Other Other
Flight Phase	ground : parked ground other : taxi
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : flight engineer pilot : atp pilot : cfi
Experience	flight time last 90 days : 100 flight time total : 15000 flight time type : 200
ASRS Report	203151
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp
Events
Anomaly	aircraft equipment problem : less severe non adherence : published procedure non adherence other other anomaly other anomaly other
Independent Detector	other flight crewa
Resolutory Action	none taken : insufficient time
Consequence	other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation other

Narrative:

Arrived at parking gate at ewr. I set park brakes and was verified by first officer. I ordered the right engine shut down and turned the seat belt light 'off.' left engine was left running (APU shutdown). First officer looked up and yelled 'we're rolling!' immediately hit the brakes resulting in an abrupt lurch. After 3 or 4 attempts to reset brakes were unsuccessful, I had the first officer attempt to set the brakes. They also were unsuccessful. After selecting 'reserve brakes' I was able to reset the parking brake. Hydraulic brake pressure was normal. I started the APU and shut down the left engine. The tow bar was hooked up and aircraft repositioned. Passenger reported being jostled and some minor injuries. Contributing factors: 1)practice of leaving 1 engine running at gate waiting for ground power to save APU fuel. 2) delay in chocking wheels as soon as the aircraft is stopped. 3) failure of parking brake mechanism. Some corrective recommendations might be: 1) discontinue practice of leaving engine running at gate. 2) ensure wheels are chocked as soon as aircraft is stopped. 3) investigate failure of parking brake linkage.

Original NASA ASRS Text

Title: PAX INJURIES SUSTAINED DURING ACFT PARKING PROC.

Narrative: ARRIVED AT PARKING GATE AT EWR. I SET PARK BRAKES AND WAS VERIFIED BY FO. I ORDERED THE R ENG SHUT DOWN AND TURNED THE SEAT BELT LIGHT 'OFF.' L ENG WAS LEFT RUNNING (APU SHUTDOWN). FO LOOKED UP AND YELLED 'WE'RE ROLLING!' IMMEDIATELY HIT THE BRAKES RESULTING IN AN ABRUPT LURCH. AFTER 3 OR 4 ATTEMPTS TO RESET BRAKES WERE UNSUCCESSFUL, I HAD THE FO ATTEMPT TO SET THE BRAKES. THEY ALSO WERE UNSUCCESSFUL. AFTER SELECTING 'RESERVE BRAKES' I WAS ABLE TO RESET THE PARKING BRAKE. HYD BRAKE PRESSURE WAS NORMAL. I STARTED THE APU AND SHUT DOWN THE L ENG. THE TOW BAR WAS HOOKED UP AND ACFT REPOSITIONED. PAX RPTED BEING JOSTLED AND SOME MINOR INJURIES. CONTRIBUTING FACTORS: 1)PRACTICE OF LEAVING 1 ENG RUNNING AT GATE WAITING FOR GND PWR TO SAVE APU FUEL. 2) DELAY IN CHOCKING WHEELS AS SOON AS THE ACFT IS STOPPED. 3) FAILURE OF PARKING BRAKE MECHANISM. SOME CORRECTIVE RECOMMENDATIONS MIGHT BE: 1) DISCONTINUE PRACTICE OF LEAVING ENG RUNNING AT GATE. 2) ENSURE WHEELS ARE CHOCKED AS SOON AS ACFT IS STOPPED. 3) INVESTIGATE FAILURE OF PARKING BRAKE LINKAGE.

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.