Bombardier Challenger & Global: Preventing Hydraulic Line Damage from Deteriorated M85052/2 Clamps

September 2024

Bombardier has issued Advisory Wires that address premature failure of M85052/2 clamps, particularly those with blue cushion material, which can deteriorate and cause chafing of hydraulic tubing. Both blue and purple clamps have the same part number (M85052/2).

The issue has been resolved by removing affected clamps from inventory and implementing a quality control process. During maintenance, operators should inspect and replace any deteriorated clamps, especially in the aft compartment, to prevent hydraulic line damage.

Order your new clamps (M85052/2) at DuncanAviationParts.com. 

AW300-29-0211:

• Challenger 300/350

AW600-29-2485:

• Challenger 604 (5301 to 5665)
• Challenger 605 (5701 to 5990)

AW700-29-0528 Rev 1:

• Global Express / XRS (9002 - 9312, 9314 - 9380, 9384- 9429)
• Global 5000 (9127 to 9383, 9389 to 9400, 9404 to 9431 and 9998)
• Global 5000 feat. Vision Flight Deck (9386, 9401, 9445 - 9997)
• Global 6000 (9313, 9381, 9432 -9997)

Please reach out to me with any questions.