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A B757-200 flight crew allows forward motion of the aircraft during a xbleed start when the captain fails to set the parking brake at the ramp at bwi.
| Attributes | |
| ACN | 482780 |
| Time | |
| Date | 200008 |
| Day | Mon |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : bwi.airport |
| State Reference | MD |
| Altitude | agl single value : 0 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | B757-200 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | ground : pushback ground : holding |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 240 flight time total : 17360 flight time type : 3840 |
| ASRS Report | 4827801 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 152 flight time total : 8711 flight time type : 1820 |
| ASRS Report | 482906 |
| Events | |
| Anomaly | aircraft equipment problem : less severe non adherence : published procedure non adherence : company policies other anomaly other |
| Independent Detector | other flight crewa |
| Resolutory Action | flight crew : became reoriented other |
| Consequence | Other |
| Supplementary | |
| Problem Areas | Flight Crew Human Performance Aircraft |
| Primary Problem | Flight Crew Human Performance |
Narrative:
Started right engine at gate at bwi. APU was inoperative for pneumatics. Aircraft pushed back from gate onto ramp. Aircraft was stopped. Tug driver was cleared to disconnect and was told to stay clear of aircraft for xbleed start. We waited a couple of mins for the wave-off. I received wave-off, released parking brake keeping feet on brake pedals. I waited for tug driver and wing walker to get clear of aircraft. Once they cleared, I had first officer call ATC ground to tell them we needed to do a xbleed start. ATC said ramp was clear behind us. We had xbleed start checklist and ran the checklist. I advanced power on the operating engine to 70% N2 and cleared first officer to start left engine. First officer noticed aircraft was starting to move and called it to my attention. I looked down and I saw that the parking brake was off. I set parking brake and we continued with the xbleed start. No further problems occurred. Supplemental information from acn 482906: the aircraft moved 2-3 ft before captain stopped the airplane.
Original NASA ASRS Text
Title: A B757-200 FLC ALLOWS FORWARD MOTION OF THE ACFT DURING A XBLEED START WHEN THE CAPT FAILS TO SET THE PARKING BRAKE AT THE RAMP AT BWI.
Narrative: STARTED R ENG AT GATE AT BWI. APU WAS INOP FOR PNEUMATICS. ACFT PUSHED BACK FROM GATE ONTO RAMP. ACFT WAS STOPPED. TUG DRIVER WAS CLRED TO DISCONNECT AND WAS TOLD TO STAY CLR OF ACFT FOR XBLEED START. WE WAITED A COUPLE OF MINS FOR THE WAVE-OFF. I RECEIVED WAVE-OFF, RELEASED PARKING BRAKE KEEPING FEET ON BRAKE PEDALS. I WAITED FOR TUG DRIVER AND WING WALKER TO GET CLR OF ACFT. ONCE THEY CLRED, I HAD FO CALL ATC GND TO TELL THEM WE NEEDED TO DO A XBLEED START. ATC SAID RAMP WAS CLR BEHIND US. WE HAD XBLEED START CHKLIST AND RAN THE CHKLIST. I ADVANCED PWR ON THE OPERATING ENG TO 70% N2 AND CLRED FO TO START L ENG. FO NOTICED ACFT WAS STARTING TO MOVE AND CALLED IT TO MY ATTN. I LOOKED DOWN AND I SAW THAT THE PARKING BRAKE WAS OFF. I SET PARKING BRAKE AND WE CONTINUED WITH THE XBLEED START. NO FURTHER PROBS OCCURRED. SUPPLEMENTAL INFO FROM ACN 482906: THE ACFT MOVED 2-3 FT BEFORE CAPT STOPPED THE AIRPLANE.
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.