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B777 rolls during parking after the captain releases the parking brake at the request of the mechanic tearing loose the #2 aircraft door.
| Attributes | |
| ACN | 531868 |
| Time | |
| Date | 200111 |
| Day | Thu |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : den.airport |
| State Reference | CO |
| Altitude | agl single value : 0 |
| Environment | |
| Light | Daylight |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | B777 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | other |
| Flight Phase | ground : parked ground : preflight |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : commercial pilot : instrument pilot : multi engine |
| ASRS Report | 531868 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Events | |
| Anomaly | ground encounters other non adherence : published procedure other anomaly other |
| Independent Detector | other other : 4 |
| Resolutory Action | none taken : detected after the fact |
| Consequence | other other other |
| Supplementary | |
| Problem Areas | Maintenance Human Performance Flight Crew Human Performance Company |
| Primary Problem | Maintenance Human Performance |
Narrative:
During the walkaround, I noticed the tug was attached, the tow pin installed, the proper lights on the nose gear were illuminated, and the chocks were in place. The aircraft was on the proper position on the ramp. The #12 brake was smoking heavily, so I mentioned this to the captain. A mechanic was on board, so the captain asked him if he could release the brakes. The mechanic left the cockpit, returned shortly, and granted clearance to release the brakes. Later in his preflight, the captain reset the parking brake. Preparing to run checklists, the purser called and said that the jetbridge was moving and the door 2L was caught. The captain went back to see. I was not on 'flight' interphone, but apparently the captain was asked by the mechanic to release the brake. He did so. The purser called again and said the jetbridge had again shifted and was tearing the door loose. I do not recall when the mechanic asked the captain to reset the parking brake.
Original NASA ASRS Text
Title: B777 ROLLS DURING PARKING AFTER THE CAPT RELEASES THE PARKING BRAKE AT THE REQUEST OF THE MECH TEARING LOOSE THE #2 ACFT DOOR.
Narrative: DURING THE WALKAROUND, I NOTICED THE TUG WAS ATTACHED, THE TOW PIN INSTALLED, THE PROPER LIGHTS ON THE NOSE GEAR WERE ILLUMINATED, AND THE CHOCKS WERE IN PLACE. THE ACFT WAS ON THE PROPER POS ON THE RAMP. THE #12 BRAKE WAS SMOKING HEAVILY, SO I MENTIONED THIS TO THE CAPT. A MECH WAS ON BOARD, SO THE CAPT ASKED HIM IF HE COULD RELEASE THE BRAKES. THE MECH LEFT THE COCKPIT, RETURNED SHORTLY, AND GRANTED CLRNC TO RELEASE THE BRAKES. LATER IN HIS PREFLT, THE CAPT RESET THE PARKING BRAKE. PREPARING TO RUN CHKLISTS, THE PURSER CALLED AND SAID THAT THE JETBRIDGE WAS MOVING AND THE DOOR 2L WAS CAUGHT. THE CAPT WENT BACK TO SEE. I WAS NOT ON 'FLT' INTERPHONE, BUT APPARENTLY THE CAPT WAS ASKED BY THE MECH TO RELEASE THE BRAKE. HE DID SO. THE PURSER CALLED AGAIN AND SAID THE JETBRIDGE HAD AGAIN SHIFTED AND WAS TEARING THE DOOR LOOSE. I DO NOT RECALL WHEN THE MECH ASKED THE CAPT TO RESET THE PARKING BRAKE.
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.