TM 55-1520-240-23-45-6INSPECT ROTARY-WING HEADS(Continued)5-6h.Damage to edge of pitch arm (16) wherewasher contacts arm when pitch link bolt isinstalled shall not exceed 0.060 inch in depth.i.Damage to arm faces (17) around bolt holeshall not exceed 0.040 inch in depth.j.Damage to remaining areas (18) of pitch arm(16) shall not exceed 0.050 inch in depth.j.1.Damage to fillet areas (18.1) where pitch armblends into housing shall not exceed 0.010inch in depth.k.Damage to six lugs (19), pockets (20), andcenter housing areas (21) shall not exceed0.005 inch in depth.NOTEThere may be two different five-digitcodes marked on the part. Thefive digit code 81996 is not themanufacturer’s CAGE code. If found,the number 81996 identifies the partas having been manufactured IAWgovernment technical data package(TDP). Use the five-digit IAW stepsk3, k5 and k6 to determine themanufacturer’s CAGE code.k.1.Locate the inboard tie-bar pin assemblies,three (3) per rotor head, TM 55-1520-240-23P.k.2.Remove the pin for inspection. Refer to Task5-23.1.k.3.Identify the five-digit manufacturer’s CAGEcode or manufacturer’s name on the end ofthe pin. If the inboard tie-bar pin is markedwith one of the following CAGE codes, thepin is serviceable:(A)CAGE code 63259 (Boniface Tool andDie)(B)CAGE code 56811 (Olympic Tool andMachine)(C)CAGE code 77272 (Boeing)NOTEIf the pin contains only one CAGEcode (81205) along with the partnumber, the pin is consideredserviceable. If the pin contains twoCAGE codes (81205 and 81966)along with the part number, the partis considered unserviceable. The pinwith the two CAGE’s could reflect anarmy procurement which has beenimproperly identified.(D)CAGE code 81205 (Boeing Seattle)k.4.If the pin is serviceable, re-install IAW Task5-23.2.k.5.If pin is unserviceable, or if CAGE code ormanufacturer’s name cannot be identified,replace with serviceable part from the supplysystem as defined above.k.6.Locate the outboard tie-bar pin assemblies,three per rotor head, TM 55-1520-240-23P.k.7.Remove the pin for inspection. Refer to Task5-23.1. Repeat steps k2 thru k5.l.Damage to tanks (22) shall not exceed 0.020inch in depth by 2.5 inches in length.5-34
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