Preformed Packing offers OEM replacement parts to aid maintenance.

Press Release Summary:

Messier-Bugatti-Dowty part number BT34-5 consists of part of piston housing, which acts as sub-assembly of Carbon Brake Assembly. Latter is installed on left of right axle of main landing gear of various models of Boeing 777-200, 300, 300ER, 200LR, and F Series aircraft. FAA PMA replacement parts are available to promote cost reduction when maintaining SAFRAN, Messier-Bugatti-Dowty, Carbon Brake Assembly systems.

Original Press Release:

Seginus Inc. is Pleased to Introduce BT34-5EH, Preformed Packing.

SAFRAN, Messier-Bugatti-Dowty part number BT34-5 part of the Piston Housing, which is the sub-assembly of the Carbon Brake Assembly. The Carbon Brake Assembly is installed on the left of right axle of the main landing gear of various models of the Boeing 777-200, 300, 300ER, 200LR and F Series aircraft.

Seginus Inc has release the following FAA PMA replacement parts to aid in your cost reduction programs when maintaining your SAFRAN, Messier-Bugatti-Dowty, Carbon Brake Assembly systems.

BT34-5 Preformed Packing

For additional information contact our USA offices or your regional distributor.

OEM Part Numbers:


PMA Part Numbers:


Quantity Per Unit:

1 per Return Piston Assembly


Carbon Brake Assembly P/N C20558000

CMM Reference:



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