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B737 flight crew reports rolling back after parking at the gate with chocks in. The brakes are applied and the ground crew tugs the aircraft back to the spot. The company briefing page indicates that at this gate and another the company uses at this airport require the parking brakes to remain set at all times.
| Attributes | |
| ACN | 1120501 |
| Time | |
| Date | 201310 |
| Local Time Of Day | 1201-1800 |
| Place | |
| Locale Reference | ZZZ.Airport |
| State Reference | US |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Make Model Name | B737-700 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Parked |
| Person 1 | |
| Function | Captain |
| Experience | Flight Crew Last 90 Days 220 |
| Person 2 | |
| Function | First Officer |
| Events | |
| Anomaly | Deviation - Procedural Published Material / Policy Ground Event / Encounter Other / Unknown |
Narrative:
Normal marshaling into gate; stopped normally; normal hand signals to include chocks in signal from marshaller. At that point I released the parking brake and called for the parking checklist. While accomplishing the checklist; I notice movement in my left peripheral vision; glanced up; saw the jetway moving forward; smoothly applied brakes; and set the parking brake. The aircraft started rolling backward and either pushed the rear chock out of place; the chock was incorrectly positioned; or not in position. Rampers came on the intercom; hooked up the tow bar; and towed the aircraft forward to the stop point; and I set the parking brake for the remainder of the turn. There was a briefing page change which I reviewed before reporting to the aircraft and reviewed it once again enroute. I overlooked the notice to keep parking brakes set at [specific gates at this airport; including the one we wereparked at]. A more vigilant review of the briefing page on my part would have prevented this. Recommend that briefing pages with gates like this have the gate list include bold lettering to draw additional attention to special gate requirements.
Original NASA ASRS Text
Title: B737 flight crew reports rolling back after parking at the gate with chocks in. The brakes are applied and the ground crew tugs the aircraft back to the spot. The company briefing page indicates that at this gate and another the company uses at this airport require the parking brakes to remain set at all times.
Narrative: Normal marshaling into gate; stopped normally; normal hand signals to include chocks in signal from Marshaller. At that point I released the parking brake and called for the Parking Checklist. While accomplishing the checklist; I notice movement in my left peripheral vision; glanced up; saw the jetway moving forward; smoothly applied brakes; and set the parking brake. The aircraft started rolling backward and either pushed the rear chock out of place; the chock was incorrectly positioned; or not in position. Rampers came on the intercom; hooked up the tow bar; and towed the aircraft forward to the stop point; and I set the parking brake for the remainder of the turn. There was a briefing page change which I reviewed before reporting to the aircraft and reviewed it once again enroute. I overlooked the notice to keep parking brakes set at [specific gates at this airport; including the one we wereparked at]. A more vigilant review of the briefing page on my part would have prevented this. Recommend that briefing pages with gates like this have the gate list include bold lettering to draw additional attention to special gate requirements.
Data retrieved from NASA's ASRS site as of July 2013 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.