AFS-BH430-IBF-ICA
Aerospace
Filtration Systems, Inc.
Revision: B
Proprietary Information
Use or disclosure of this material is subject
34
AFS Bell 230 and 430 IBF
to the restrictions on the title page
Instructions for Continued Airworthiness
g.
Disconnect the actuator electrical connector from the wire harness.
h.
Disconnect the wire harness from the firewall connector.
i.
Remove the wire harness from the bracket located on the Bypass Structural Assembly.
j.
Remove the wire clamps securing the wire harness to the Bypass Structural Assembly and the
center wall.
k.
Remove the two NAS6203-4 bolts, NAS1149D0332J washers, and MS21042L3 nuts securing
the lower horizontal bracket to the lower firewall flange.
l.
Remove the four MS27039-08-08 screws and NAS1149DN832J washers securing the Bypass
Structural Assembly to the upper firewall flange.
m.
Remove the two NASM3H4A bolts, NAS1149D0316J washers, and MS21042L3 nuts securing
the lower angled bracket to the lower firewall flange.
n.
Remove the five NAS6203 bolts and NAS1149D0363J washers securing the Bypass Structural
Assembly to the aft section of the firewall.
8.4.1.2
Inspection
a.
Cracking. Visually inspect the Bypass Structural Assembly and related parts for cracking using
10x magnifications at the corners, radii, and transitions in part thickness. Any fretting of faying
surfaces, such as those at a crack, may emit a black or grey dust or soot like material indicative
of a crack. Inspect suspect areas carefully using the 10x magnification. Refer to adjustment /
calibration / repair for disposition of cracks in the Bypass Structural Assembly or parts.
b.
Reserved.
c.
Protective Coatings. Visually inspect the Bypass Door Assembly and related parts for missing,
damaged, or “scratched through” protective coatings. Re-apply protective coatings per Table 2
of this chapter.
d.
Corrosion. Visually inspect the Bypass Structural Assembly and related parts for corrosion in
accordance with AC 43.13-1, Chapter 6 and Table 2.
e.
Missing, damaged or loose associated components. Visually inspect the Bypass Structural
Assembly for missing damaged or loose components.
8.4.1.3
Troubleshooting
Not applicable.
Summary of Contents for AFS-BH430-IBF-ICA
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