TM 55-1520-240-PM1-11. MAINTENANCE OPERATIONAL CHECKS (MOCS).After the completion of any required corrective action to any of the componentsof a functional system of the aircraft, MOCs shall be performed on that systemto determine the effectiveness of the maintenance actions performed and toverify the proper operation of that system (refer to TM 55-1520-240-T). TheseMOCs shall be performed in accordance with TM 1-1500-328-23.1-12. MAINTENANCE TEST FLIGHT (MTF).When all required inspections in Section II have been accomplished andinitialed in accordance with the above procedures, the MTF shall be performedin accordance with the requirements of TM 1-1520-240-MTF and TM 1-1500-328-23 using the MTF form in the TM 1-1520-240-MTF manual.1-13. CHECKLIST DISPOSITION.The completion of each phased maintenance inspection shall be recordedon applicable aircraft forms as addressed in DA PAM 738-751. The signedchecklist, together with all forms prescribed by DA PAM 738-751 will be filedfor a period of six months. At the end of the six-month period, disposition offorms will be in accordance with DA PAM 738-751.1-14. INSPECTION AREAS.Figure 1-4 shows the inspection area of the CH-47D aircraft. Figure 1-5 showsthe location of access doors and panels which require removal at variousphased maintenance inspections.1-15. SERIAL NUMBER CHECKLIST (FIGURE 1-6) AND EQUIPMENTINVENTORY CHECK.After all corrective actions have been completed and following completion ofthe Phased Inspection, the Technical Inspector shall make a serial number ver-ification check, aircraft component historical record and an aircraft equipmentinventory check in accordance with DA PAM 738-751.1-3
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