TB 1-1520-238-20-65
7. Parts to be Inspected.
NOMENCLATURE
PART NUMBER
NATIONAL STOCK NUMBER
Pin, Grooved, Headed (Shear
7-211514082
Pin)
Pin, Solid, Steel (Solid Pin)
7-232310078-3
8. Inspection Procedures
a. Determine serial number of aircraft.
b. If aircraft serial number is 88-0200 (PV530) or subsequent, there is no further action required and the inspection
is complete
c. If aircraft serial number is 82-23355 (PV01) through 88-0199 (PV529) (Non-Bucs Aircraft), perform the following
inspections.
NOTE
These Aircraft shoed not have Bucs active Servos (red warning decal affixed to the cylinder barrel) installed.
d. Servocylinder Inspection
(1)
Check the Servocylinder part number on the data plate of the Lateral/Collective Servocylinder (TM 1-
1520-238-23P, Figure 323, item 1). If part numbers 289300-1007, 289300-1009, 289300-1015,289300-1017 or 289300-
1019 is installed, remove and replace with Non-Bucs Lateral/Collective Servocylinder listed in paragraph 6. Proceed to
(2)
Check the Servocylinder part number on the data plate of the Longitudinal Servocylinder (TM 1-1520-
238-23P, figure 323, item 2). H part numbed 308900-1007, 308900-1009, 308900-1011, 308900-1013, or 308900-1015
installed, remove end replace with Non-Bucs Longitudinal Servocylinder listed in paragraph 6. Proceed to paragraph 9a
for correction procedures.
(3) Check the Servocylinder part number of the data plate of the Directional (tail rotor) Servocylinder (TM 1-
1520-238-23P, Figure 355, item 20). If part numbers 289400-1005, 289400-1007, or 289400-1009 is installed, remove
and replace with Non-Bucs Directional (tail rotor) Servocylinder listed in paragraph 6. Proceed to paragraph 9a for
correction procedures.
e. Pin Inspection
(1) With hydraulic pressure applied (APU or AGPU), ensure:
(a)
Collective full down.
(b)
Directional pedal full left.
(c)
Cyclic stick centered (use indicator on cyclic stick cover as guide.)
(2)
Remove hydraulic pressure from system.
(3) Pilots station: Use a force gage, fish scale or equivalent (minimum value 0-150 pounds for directional
pedals, minimum value 0-100 pounds for all others) to perform the following procedures:
(a) To prevent damage wrap tape around the cyclic stick grip at the center of the handgrip location.
Manila rope may be used in lieu of tape.
(b) Apply a force of 45 plus or minus 2 pounds, at the center of the handgrip, in the lateral direction,
hold for five (5) seconds.
(c) Apply a force of 65 plus or minus 2 pounds, at the center of the handgrip in the aft direction, hold
for five (5) seconds.
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