TM 55-1520-240-PM PHASE NO. _____ Area Name and No. Aircraft Serial No. Date NO. 1 ENGINE AREA #4 Inspect Phase No’s Inspection Requirements Status Faults and/or Remarks Action Taken Initial ALL 4.18 Main fuel manifolds for security and signs of leaks. Access 55, 58, 60 ALL 4.19 Lines and hoses throughout the area for leaks, chafing, and security, including quick disconnect shelf. ALL/C 4.20 Main oil filter bypass indicator for extension. ALL/C 4.21 Remove interstage air bleed strainer. Inspect, clean, and reinstall. On helicopters (Without  74 ), refer to TM 55-2840-254-23. On helicopters (With  74 ), refer to TM 1-2840-265-23. Access 55, 58, 60 ALL/C 4.22 Remove fuel control strainer, if the main fuel filter bypass indicator has been actuated (in bypass). Inspect, clean, and reinstall, not necessary otherwise. On helicopters (Without  74 ), refer to TM 55-2840-254-23. Access 55, 58, 60 2, 4 4.23 Replace oil and fuel filters every 400 hours. "FOD REMINDER" Check work area for tools and parts after completion of maintenance and inspection. 2-23