<< >> NASA ASRS Report 1007148, April 2012

B767-300 flight crew detects a thump during the initial portion of the takeoff roll and continues. Once airborne a faint burning rubber smell is detected and a tire failure is suspected but cannot be confirmed. Post flight inspection reveals that a pallet has broken loose and damaged an air duct.

Attributes
ACN	1007148
Time
Date	201204
Local Time Of Day	1201-1800
Place
Locale Reference	ZZZ.Airport
State Reference	US
Aircraft 1
Make Model Name	B767-300 and 300 ER
Operating Under FAR Part	Part 121
Flight Phase	Takeoff
Flight Plan	IFR
Component
Aircraft Component	Cargo Restraint/Tie Down
Person 1
Function	First Officer Pilot Flying
Qualification	Flight Crew Air Transport Pilot (ATP)
Person 2
Function	Relief Pilot Pilot Not Flying First Officer
Qualification	Flight Crew Air Transport Pilot (ATP)
Events
Anomaly	Aircraft Equipment Problem Critical Deviation - Procedural Other / Unknown Flight Deck / Cabin / Aircraft Event Smoke / Fire / Fumes / Odor

Narrative:

At the beginning of the takeoff roll (well below 80 KTS) crew felt a loud 'thump.' it felt like running over a seam in the concrete. It wasn't an unusual sound. On climbout; the cabin crew called to say they smelled a faint odor of burning rubber in the cabin. The cockpit crew noticed the same odor. The odor dissipated within a few minutes. No other abnormal indications were noted. We began to think we may have blown a tire on takeoff roll. The crew made a call back to the tower to advise and have them inspect the runway. Also called maintenance to advise. We consulted the QRH; which advised continuation to destination. A call back from maintenance confirmed the runway was found to be free of debris. We elected to continue to destination; and encountered no further complications. Upon arrival; maintenance inspection revealed that a cargo pallet in the forward compartment had broken loose and slid aft; damaging an air duct.

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Original NASA ASRS Text

Title: B767-300 flight crew detects a thump during the initial portion of the takeoff roll and continues. Once airborne a faint burning rubber smell is detected and a tire failure is suspected but cannot be confirmed. Post flight inspection reveals that a pallet has broken loose and damaged an air duct.

Narrative: At the beginning of the takeoff roll (well below 80 KTS) crew felt a loud 'thump.' It felt like running over a seam in the concrete. It wasn't an unusual sound. On climbout; the cabin crew called to say they smelled a faint odor of burning rubber in the cabin. The cockpit crew noticed the same odor. The odor dissipated within a few minutes. No other abnormal indications were noted. We began to think we may have blown a tire on takeoff roll. The crew made a call back to the Tower to advise and have them inspect the runway. Also called Maintenance to advise. We consulted the QRH; which advised continuation to destination. A call back from Maintenance confirmed the runway was found to be free of debris. We elected to continue to destination; and encountered no further complications. Upon arrival; Maintenance inspection revealed that a cargo pallet in the forward compartment had broken loose and slid aft; damaging an air duct.

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.