TB 1-1520-240-20-97
4. Summary of the Problem.
a. TB 1-1520-240-20-77 was issued to have specific rod end bearings inspected and lubricated at the next phase
and every 1st and 3rd phase thereafter. Since this TB, several bearings in the closet area have been identified as also
requiring lubrication.
b. For manpower/downtime and funding impacts, see paragraph 12.
c. The purpose of this TB is to inform the user of the requirement to inspect and lubricate the rod end bearing
grease fittings in the flight control closet area. The bearings shall be lubricated at the next phase and then at every 1 st
and 3rd phase interval for the CH-47D. The MH-47E and MH-47D shall inspect and lubricate the bearings at every
phase inspection.
5. End Items to be Inspected. All CH-47D, MH-47D, and MH-47E aircraft.
6. Assembly Components to be Inspected.
a. CH-47D and MH-47D, TM 55-1520-240-23P-3, FIGURE 364:
NOMENCLATURE
PART NUMBER
NSN
ITEM
Connecting Link, RIG
145CS360-1
3040-01-118-6277
12
Actuator Electro-Mech
145CS100-5
16
Connecting Link, RIG
145C1415-1
17
b. MH-47E, TM 1-1520-252-23P-1, FIGURE 11-2:
NOMENCLATURE
PART NUMBER
NSN
ITEM
Connecting Link, RIG
145CS360-1
13
Actuator Electro-Mech
45CS100-5
17
Connecting Link, RIG
145C1415-1
18
7. Parts to be Inspected.
a CH-47D and MH-47D, TM 55-1520-240-23P-3:
NOMENCLATURE
PART NUMBER
NSN
FIGURE
ITEM
Bearing, Rod End
114CS103-4
3110-01-096-0895
364
14
Bearing, Roller, Rod End
SM4-4C
3110-01-025-0853
364
19
Bearing, Rod End
114CS103-4
3110-01-096-0895
367
6
b. MH-47E, TM 1-1520-252-23P-1:
NOMENCLATURE
PART NUMBER
NSN
FIGURE
ITEM
Bearing, Rod End
114CS103-4
3110-01-096-0895
11-4
15
Bearing, Roller, Rod End
SM4-4C
3110-01-025-0853
11-4
20
Bearing, Rod End
114CS103-4
3110-01-096-0895
11-7
6
8. Inspection Procedures.
a. At the next phase inspection, inspect and lubricate rod end bearings in the closet area in accordance with TM 55-
1520-240-23-9, Task 11-9 and 11-3.
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