SB-700-57-050 Rev 3 – Inboard Flaps
SB-700-57-053 Rev1 – Middle Flaps
SB-700-57-054 Rev 1 – Outer Flaps

Equivalent SBs for the other models apply.

The Global Express Specialists at West Star Aviation want to remind you that there have been revisions to three important service bulletins for specific flap corrosion inspection, correction and drainage improvement on inboard, middle and outer flaps of Bombardier Global Express aircraft (specifically BD−700−1A10 aircraft, Serial No. 9002 to 60095).

This process requires a visual borescope inspection to look for corrosion. If corrosion is discovered a near complete disassembly of the flaps may be required. Please plan your downtime accordingly, as the estimated amount of downtime is 5 weeks, if internal corrosion is found. Best to plan this SB in conjunction with major maintenance events.

These are recommended SB’s, not mandatory or associated to an AD.

For your convenience, West Star Aviation’s full-service Grand Junction, CO (GJT) and East Alton, IL (ALN) facilities both have the capabilities to perform these service bulletins. Our specialists have completed 53 sets of inboard flaps, 22 sets of middle flaps and 21 sets of outer flaps already.