TB 1-1520-238-30-20
11. SUPPLY/PARTS:
Nomenclature
Part Number
National Stock Number
Rubber Sheet
3M 8641 Tape (blk.)
Primer
3M Primer #86
Sealant
AMS-S-8802 CLB-2
Corrosion Resistant Coating
MIL-C-5541 CL 1A
Talcum Powder
Johnson &Johnson 3022
Ink, Permanent Marking
30001 BLACK
Rivets
NAS1097 (Size/dash# TBD
during rework)
Rivets
NAS 1738 Bx (Size TBD dur-
ing rework)
IGB Fairing Stiffener, LHS
7-511122620-7
NSN unavailable
IGB Fairing Stiffener, RHS
7-511122620-9
NSN unavailable
Satin Cloth
SAE-AMS-C-9084
Adhesive
EA9313
Adhesive
EA9309.3NA
Primer, Top Coat, Exterior Green
MIL-C-46168
Aluminum Alloy Sheet
6061-T4 Sheet, 0.080-0.090
Aluminum Alloy Tube
0.438" QQ--A--225/8, 6061--T6
NSN unavailable
Seal, Rubber Ext.
HS4028-2724
NSN unavailable
Trichloroethane
O-T-620
Abrasive Mat (Scotchbrite)
A-A-58065
5305-00-967-5092
Coating, Chemical
MIL-C-81706
Primer
MIL-PRF-23377
Adhesive
EC1300L (SG1300L)
Lint Free Cloth
Anti-Chafe Tape
12. SPECIAL TOOLS, JIGS, AND FIXTURES REQUIRED FOR INSPECTION: N/A
13. INSPECTION PROCEDURE:
13.1. Safe helicopter IAW applicable maintenance manual: see reference item 18.1, 18.2 or 18.3.
13.2. Inspect the diffuser and the tailboom area directly underneath the diffuser. If tailboom chaffing is
no tailboom chaffing is identified and no diffuser cracking is found then inspection is complete. If diffuser
cracking is found then repair/modify current diffuser IAW paragraph 14 or replace diffuser. If unable to replace
cracked diffuser due to extenuating circumstance, contact technical POC listed in paragraph 20.
13.3. Remove IGB Diffuser per applicable maintenance manual: see reference item 18.1, 18.2 or 18.3.
13.4. Radius two (2) areas as indicated on figure 9 if required. Touch-up all reworked areas using
MIL-C-5541, Class 1A (corrosion resistant coating) and MIL-PRF-85582, Type 1, Class 2 (paint primer).
13.5. Inspect depth of
damage to
skin. See Figure 1 for possible chafe areas. If
damage is
greater than 10%
(.006 inch) of fuselage skin thickness, contact AMCOM Engineering or Boeing Engineering. If damage is less
than 10% (.006 inch) of skin thickness, blend to assure smooth transitions without deepening damaged area.
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