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Bombardier Global: What Is Your Flap Status?

August 2023

Years have passed since Bombardier issued Global* Flap Corrosion Protection and Drainage Improvement SBs (Service Bulletins) inner, mid, and outboard flap assemblies, which call for the inspection and modification of flaps for corrosion and drainage issues.

An internal borescope inspection of the flaps is performed through drain holes. If no corrosion is found, the area is clean, and a preventive compound is applied. Additional drain holes are added for the removal of moisture.

If corrosion is found during the course of these SBs, the flaps are removed to access the corrosion and follow-up paintwork.

These are recommended Service Bulletins we are ready to accommodate as part of your next major calendar inspection.

Duncan Aviation Tooling & Capabilities

All of Duncan Aviation’s full-service facilities (Battle Creek, MI; Lincoln, NE; and Provo, UT) have access to the necessary tooling available to comply with these SBs and have serviced more than 163 sets of flaps (inner, mid, & outboard).

Edrill Bushing Reaming Kit Inboard Flap Rig Board
(L to R) E-drill, Inboard Flap Rig Board, Bushing Reaming kit

MODEL DESCRIPTION SB
GLEX/XRS I/B FLAPS 700-57-050 R3
5000 I/B FLAPS 700-1A11-57-016 R3
5000GVFD I/B FLAPS 700-57-5005 R3
6000 I/B FLAPS 700-57-6005 R3
5500 N/A N/A
6500 N/A N/A
GLEX/XRS MID FLAPS 700-57-053 R1
5000 MID FLAPS 700-1A11-57-019 R1
5000GVFD MID FLAPS 700-57-5008 R1
6000 MID FLAPS 700-57-6008 R1
5500 MID FLAPS 700-57-5502 R2
6500 MID FLAPS 700-57-6502 R2
GLEX/XRS O/B FLAPS 700-57-054 R1
5000 O/B FLAPS 700-1A11-57-020 R1
5000GVFD O/B FLAPS 700-57-5009 R1
6000 O/B FLAPS 700-57-6009 R1
5500 O/B FLAPS 700-57-5503 R2
6500 O/B FLAPS 700-57-6503 R2
GLEX/XRS I/B FLAP MIGRATED BUSHINGS 700-57-048 R2
5000 I/B FLAP MIGRATED BUSHINGS 700-1A11-57-014 R2
5000GVFD I/B FLAP MIGRATED BUSHINGS 700-57-5003 R2
6000 I/B FLAP MIGRATED BUSHINGS 700-57-6003 R2
5500 N/A N/A
6500 N/A N/A
GLEX/XRS SPIGOT TUBE CORROSION 700-27-085
5000 SPIGOT TUBE CORROSION 700-1A11-27-043
5000GVFD SPIGOT TUBE CORROSION 700-27-5014
6000 SPIGOT TUBE CORROSION 700-27-6014
5500 N/A N/A
6500 N/A N/A