Narrative:

After gate arrival; the lead flight attendant called my attention to an unsafe condition at the jet bridge. Passengers were deplaning despite a more than one foot gap between the aircraft and the jet bridge. A small; narrow metal ramp had been placed across the gap for the passengers. I stopped the passengers [from] deplaning and discussed the situation with the gate agents and ramp supervisor on scene. They explained that the guide lines had not been properly painted on the ramp for the B737; the jet bridge could not be aligned to the aircraft; and this gap happened on every arrival at that gate. I considered this information and allowed deplaning to continue. Then the flight attendants and I noticed that the small bridge had begun rocking as each passenger stepped on it; and the situation was getting worse. The jet bridge had dropped down and its leveler was not detecting and correcting the situation. I once again stopped deplaning; went up to the gate; got agents to come down to adjust the jet bridge; and also asked at least one to remain there to monitor for the rest of deplaning.

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Original NASA ASRS Text

Title: B737 flight crew reported the lead in line for the B737 is not correct causing the jet-bridge not to align properly with the aircraft door.

Narrative: After gate arrival; the lead Flight Attendant called my attention to an unsafe condition at the jet bridge. Passengers were deplaning despite a more than one foot gap between the aircraft and the jet bridge. A small; narrow metal ramp had been placed across the gap for the passengers. I stopped the passengers [from] deplaning and discussed the situation with the gate agents and ramp supervisor on scene. They explained that the guide lines had not been properly painted on the ramp for the B737; the jet bridge could not be aligned to the aircraft; and this gap happened on every arrival at that gate. I considered this information and allowed deplaning to continue. Then the flight attendants and I noticed that the small bridge had begun rocking as each passenger stepped on it; and the situation was getting worse. The jet bridge had dropped down and its leveler was not detecting and correcting the situation. I once again stopped deplaning; went up to the gate; got agents to come down to adjust the jet bridge; and also asked at least one to remain there to monitor for the rest of deplaning.

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.