Parts to be Inspected. - TB-1-1520-237-20-2100003

TB 1--1520--237--20--210

NOMENCLATURE

PART NUMBER

NATIONAL STOCK NUMBER

Main Rotor Spindle Assy

70102--08200--063

1615--01--370--4918

Main Rotor Spindle Assy

70102--08200--069

1615--01--442--6926

Main Rotor Spindle Assy

70102--08200--070

N/A

Parts to be Inspected.

NOMENCLATURE

PART NUMBER

NATIONAL STOCK NUMBER

Main Rotor Pitch Horns

70102--08111--047

1615--01--214--9140

a. Serial Numbers R241--00101 THRU R241--00355

b. Serial Numbers R241--00701 THRU R241--00966

Serial Numbers R241--01001 THRU R241--01160

d. Serial Numbers A241--07534 THRU A241--07594

e. Serial Numbers A241--07706 THRU A241--07755

Serial Numbers A241--07768 THRU A241--07771

g. Serial Numbers A241--07800 THRU A241--07831

8. Inspection Procedures. Visually inspect each paragraph 6 assembly and paragraph 7 component to

determine whether the pitch horn is within the serial number ranges specified in paragraph 7. If the pitch horn

serial number is not within the serial number range, the inspection is complete if the pitch horn has a serial

number within the paragraph 7 serial numbers range. Correct IAW paragraph 9.

Correction Procedures.

a. Inspect the records on the subject part.

b. On aircraft -- if the pitch horn total time since new hours is more than 2,500 hours or the total time

since new cannot be determined, immediately remove the part. Dispose of the part IAW paragraph 10. Re-

port IAW paragraph 14b..

c. On aircraft -- if the pitch horn total time since new is less than 2,500 hours, annotate the reduced

2,500 hour retirement life on the spindle component record, DA Form 2408--16. Do not overfly the 2,500 hour

retirement life. Upon removal dispose IAW para 10. Report IAW paragraph 14b.

d. Retail stock -- if the verifiable available total in--service time is less than 500 hours, dispose IAW para-

graph 10. If there is more than 500 hours of verifiable life remaining on the paragraph 7 part, annotate the

reduced 2,500 hour retirement life on the DA Form 2408--16 spindle component record, or the tag attached

to the pitch horn. Report IAW paragraph 14.d.(2).

e. Wholesale Stock -- see paragraph 1.f.(1).

Component/parts in work (Depot level and others) -- See paragraph 1g.

10. Supply/Parts and Disposition.

a. Parts Required.

NOMENCLATURE

PART NUMBER

NATIONAL STOCK NUMBER

Main Rotor Pitch Horns

70102--08111--047

1615--01--214--9140

b. Requisitioning Instructions. Requisition replacement parts using normal supply procedures. All req-

uisitions shall use project code "CC 57--59" "XFB" .

NOTE