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The aircraft could not taxi from 'spot 7' at bos without starting the second engine and applying excessive power (after clearing area behind them). Bos ground informed the crew that there is a 'divot at spot 7; you're not the first.'
| Attributes | |
| ACN | 1273667 |
| Time | |
| Date | 201506 |
| Local Time Of Day | 1801-2400 |
| Place | |
| Locale Reference | BOS.Airport |
| State Reference | MA |
| Aircraft 1 | |
| Make Model Name | Medium Large Transport |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Taxi |
| Flight Plan | IFR |
| Person 1 | |
| Function | Captain Pilot Flying |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Events | |
| Anomaly | Deviation - Procedural Published Material / Policy Ground Event / Encounter Object |
Narrative:
Pushed A1 at kbos; cleared 'spot 7.' at 'spot 7' (facing south) set brakes to await taxi instructions. After taxi instructions received and route briefed released brake for taxi. Pushed power up on #1 engine (single engine taxi) to make way. Aircraft would not move. Increased power to try and break free. Unable to move. I do not remember exact power setting; but should have been ample to break free. Baffled; verified brake was off; it was... Pushed power up again yet could get no forward momentum. Boston called 'aircraft X; you unable to move?' we responded 'now that you ask; that's affirmative' boston came back 'divot at spot 7; you're not the first.' we asked if anyone was behind us and area clear and bos confirmed clear. We pushed the power up further on #1. Unable to break free. I wasn't comfortable with the situation; so had the first officer start #2. Even with both turning; it took a lot of power to break free. My concern is for others out there that could experience the same in the future; and power settings that could be a safety hazard in such a busy area. Since the flight; I relayed my experience to another pilot who had experienced the same...so I thought it might be a good to forward along.
Original NASA ASRS Text
Title: The aircraft could not taxi from 'Spot 7' at BOS without starting the second engine and applying excessive power (after clearing area behind them). BOS ground informed the crew that there is a 'Divot at spot 7; you're not the first.'
Narrative: Pushed A1 at KBOS; cleared 'Spot 7.' At 'Spot 7' (facing south) set brakes to await taxi instructions. After taxi instructions received and route briefed released brake for taxi. Pushed power up on #1 engine (single engine taxi) to make way. Aircraft would not move. Increased power to try and break free. Unable to move. I do not remember exact power setting; but should have been ample to break free. Baffled; verified brake was off; it was... pushed power up again yet could get no forward momentum. Boston called 'Aircraft X; you unable to move?' We responded 'now that you ask; that's affirmative' Boston came back 'divot at spot 7; you're not the first.' We asked if anyone was behind us and area clear and BOS confirmed clear. We pushed the power up further on #1. Unable to break free. I wasn't comfortable with the situation; so had the FO Start #2. Even with both turning; it took a lot of power to break free. My concern is for others out there that could experience the same in the future; and power settings that could be a safety hazard in such a busy area. Since the flight; I relayed my experience to another pilot who had experienced the same...so I thought it might be a good to forward along.
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.