TB1--1520--238--20--118
b. If no debonding or cracks is found, touch up area as follows--
(1) Smooth sanded repair area using 320 grit sandpaper then use 400 grit sandpaper to finish
blending the area.
(2) Solvent wipe the area with isopropyl alcohol. Hand--wipe solvent. Allow to dry 15 minutes.
(3) Apply chemical conversion coating by brush or swab to any bare metal. Allow coating to re-
main on surface until color develops. Color need not be uniform in appearance. If the metal is stainless, the
conversion coating will not change color and will not adversely affect the metal.
(4) Rinse with water or blot to remove excess (do not rub new coating).
(5) Air dry for 1 hour minimum or oven dry for 20 to 30 minutes at a temperature not to exceed
125 degrees F (52 C).
(6) Apply MIL--P--23377 to sanded area. Allow primer to dry for a minimum of 1 hour prior to top--
coating or handing of part.
(7) Apply topcoat, MIL--C--46168, Type IV or MIL--C--53039. Allow to dry for minimum of 1 hour
before handling.
NOTE
Newly painted surface will dry to touch in one hour and will dry hard in approxi-
mately 3 hours.
c. Repeat this recurring blade inspection every 250 hours. Make appropriate entry on DA Form
2408--18 IAW paragraph 8d(2) to reflect the 250 hour recurring inspection for each blade.
d. Verify DA Form 2408--16, Block 6j, reflects a life limit of 6201 hours. This includes the --7 blades.
The interim 1000 hour life limit per SOF AH--64--01--04 is rescinded.
NOTE
HQDA will prioritize units and repair parts distribution.
a. Parts Required. Items cited in paragraph 7 and/or 12 may be required to replace defective items.
b. Requisitioning Instructions. Requisition replacement parts through normal supply channels using
normal supply procedures. All requisitions shall use project code (cc 57--59) "X1G" (X--Ray --One --Golf).
NOTE
Project code "X1G" is required to track SOF costs in an attempt to establish a fu-
ture fund to reimburse units for stock fund expenditures created by SOF mes-
sages.
c. Bulk and Consumable Materials. N/A.
NOTE
X--Ray film and developer are identified in AMB A/D 01--06. Contact the Technical
POC paragraph 16a for additional requirements.
NOMENCLATURE
PART NUMBER
NATIONAL STOCK NUMBER
Bushing
7--211421034
3120--01--163--4660
Bolt
HS4243V9--63
5306--01--177--5717
Washer, Pli
FT4162--9D287
5310--01--176--7025
Nut, Self--Locking
HS4133V9
5310--01--176--7064
Nut, Self--Locking
MS21224--8
5310--00--004--5119
7
