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A319 flight crew and a ramp person involved describe a parking brake failure during gate arrival. When the failure is detected; various combinations of normal brakes; antiskid off and parking brake reset are used to stop initially but the aircraft starts rolling again. The yellow electric pump is turned on and the number 1 engine is started and the aircraft stopped twice more before the engine comes up and normal brakes are restored.
| Attributes | |
| ACN | 1320731 |
| Time | |
| Date | 201512 |
| Local Time Of Day | 0001-0600 |
| Place | |
| Locale Reference | ZZZ.Airport |
| State Reference | US |
| Environment | |
| Flight Conditions | VMC |
| Aircraft 1 | |
| Make Model Name | A319 |
| Flight Phase | Parked |
| Component | |
| Aircraft Component | Parking Brake |
| Person 1 | |
| Function | First Officer Pilot Not Flying |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Person 2 | |
| Function | Captain Pilot Flying |
| Experience | Flight Crew Last 90 Days 144 Flight Crew Total 9999 Flight Crew Type 3360 |
| Events | |
| Anomaly | Aircraft Equipment Problem Less Severe Ground Event / Encounter Other / Unknown |
Narrative:
Pulling into the gate the captain had the APU on and set the parking break and stated that the parking break was on and the pressure was normal. Then he asked for the number one engine so I did. At that point I was starting my parking check list flow when the captain said that we were rolling back. At that time I notice that he stepped on the foot brakes and we were still rolling back. I looked down and the parking break was still set. The captain turned off the anti-skid and released the breaks and we were still rolling back. The captain re-applied the brakes and the airplane was still rolling back and at that time I pushed the yellow electric pump on. The aircraft rolled back a total three times until we were able to stop the aircraft. I started the number one engine again so that we could move the aircraft back to the gate. The captain held the breaks until we got the chocks in and then we shut down the aircraft and completed the parking check list.
Original NASA ASRS Text
Title: A319 flight crew and a ramp person involved describe a parking brake failure during gate arrival. When the failure is detected; various combinations of normal brakes; antiskid off and parking brake reset are used to stop initially but the aircraft starts rolling again. The yellow electric pump is turned on and the number 1 engine is started and the aircraft stopped twice more before the engine comes up and normal brakes are restored.
Narrative: Pulling into the gate the Captain had the APU on and set the parking break and stated that the parking break was on and the pressure was normal. Then he asked for the number one engine so I did. At that point I was starting my parking check list flow when the captain said that we were rolling back. At that time I notice that he stepped on the foot brakes and we were still rolling back. I looked down and the parking break was still set. The captain turned off the anti-skid and released the breaks and we were still rolling back. The captain re-applied the brakes and the airplane was still rolling back and at that time I pushed the yellow electric pump on. The aircraft rolled back a total three times until we were able to stop the aircraft. I started the number one engine again so that we could move the aircraft back to the gate. The captain held the breaks until we got the chocks in and then we shut down the aircraft and completed the parking check list.
Data retrieved from NASA's ASRS site 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.