TM 55-1520-240-PM PHASE NO. _____ Area Name and No. Aircraft Serial No. Date FORWARD ROTOR, CROWN, AND TUNNEL, AREA #7 Inspect Phase No’s Inspection Requirements Status Faults and/or Remarks Action Taken Initial FORWARD ROTOR, CROWN, AND TUNNEL, AREA #7 ALL/C 7.1 Tunnel area for debris under synch shafts. Shafts for scoring, chafing, and damage. Adapters and plates for cracks and security of hardware. Shock mounts for security and freedom of movement. Rubber for cuts, cracks or unbonding between rubber and metal parts, and evidence of contact with support brackets. Shock mount support bushings for wear. Bearings for evidence of overheating. Drain cups for debris. Support brackets for cracks, bending, and twisting. Retainer nuts for presence of cotter pin. ALL 7.2 Hydraulic lines in tunnel area for leaks, chafing and proper support. ALL/C 7.3 Flight control connecting links, idlers, and control arms throughout tunnel area for security, damage, corrosion, and evidence of interference. Connecting link swaged inserts for evidence of looseness. Access 34, 35, 36, 37, 38, 39. "FOD REMINDER" Check work area for tools and parts after completion of maintenance and inspection. 2-44