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Widebody transport aircraft flight attendant notifies captain of loud noise heard in cargo area on taxi out. Deadheading flight crew hears noise as well. Air carrier returns to gate and inspection reveals all cargo bins are secured. Noise is heard again on taxi out and 'sounds like a bowling ball rolling around.' it is decided that it is something loose inside a bin. Flight continues.
| Attributes | |
| ACN | 352236 |
| Time | |
| Date | 199611 |
| Day | Sun |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : msp |
| State Reference | MN |
| Altitude | agl bound lower : 0 agl bound upper : 0 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | Commercial Fixed Wing |
| Operating Under FAR Part | Part 121 |
| Flight Phase | ground other : taxi |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : flight engineer pilot : atp |
| Experience | flight time last 90 days : 125 flight time total : 9000 flight time type : 3800 |
| ASRS Report | 352236 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Events | |
| Anomaly | other anomaly other |
| Independent Detector | other other : unspecified |
| Resolutory Action | none taken : unable other |
| Consequence | Other |
| Supplementary | |
| Air Traffic Incident | other |
Narrative:
Taxiing out, flight attendant called up and reported loud noise below the floor while taxiing out. Noise was heard by several passenger, flight attendants, and a deadheading B747 crew. The deadheading captain reported that it sounded like a loose cargo bin shifting. Aircraft returned to the gate. Maintenance and cargo people inspected all cargo bins and all were secured. The captain personally went through the cargo holds while they were being inspected. Maintenance found a plumb bob loose in the left wheel well. It was secured. No other problems were found. Taxied back out, the sounds were reported again. The deadheading pilot came up and said it sounded like a bowling ball rolling around. The 2 capts decided it was probably something loose within a bin, and would stay contained. An uneventful takeoff was made. The rest of the flight was normal.
Original NASA ASRS Text
Title: WDB ACFT FLT ATTENDANT NOTIFIES CAPT OF LOUD NOISE HEARD IN CARGO AREA ON TAXI OUT. DEADHEADING FLC HEARS NOISE AS WELL. ACR RETURNS TO GATE AND INSPECTION REVEALS ALL CARGO BINS ARE SECURED. NOISE IS HEARD AGAIN ON TAXI OUT AND 'SOUNDS LIKE A BOWLING BALL ROLLING AROUND.' IT IS DECIDED THAT IT IS SOMETHING LOOSE INSIDE A BIN. FLT CONTINUES.
Narrative: TAXIING OUT, FLT ATTENDANT CALLED UP AND RPTED LOUD NOISE BELOW THE FLOOR WHILE TAXIING OUT. NOISE WAS HEARD BY SEVERAL PAX, FLT ATTENDANTS, AND A DEADHEADING B747 CREW. THE DEADHEADING CAPT RPTED THAT IT SOUNDED LIKE A LOOSE CARGO BIN SHIFTING. ACFT RETURNED TO THE GATE. MAINT AND CARGO PEOPLE INSPECTED ALL CARGO BINS AND ALL WERE SECURED. THE CAPT PERSONALLY WENT THROUGH THE CARGO HOLDS WHILE THEY WERE BEING INSPECTED. MAINT FOUND A PLUMB BOB LOOSE IN THE L WHEEL WELL. IT WAS SECURED. NO OTHER PROBS WERE FOUND. TAXIED BACK OUT, THE SOUNDS WERE RPTED AGAIN. THE DEADHEADING PLT CAME UP AND SAID IT SOUNDED LIKE A BOWLING BALL ROLLING AROUND. THE 2 CAPTS DECIDED IT WAS PROBABLY SOMETHING LOOSE WITHIN A BIN, AND WOULD STAY CONTAINED. AN UNEVENTFUL TKOF WAS MADE. THE REST OF THE FLT WAS NORMAL.
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.