TM 9-2350-247-10PREVENTIVE MAINTENANCE CHECKS AND SERVICES — Continued 0057 00ITEMNO.INTERVALMAN-HOURITEM TO BECHECKED ORSERVICEDCREWMEMBERPROCEDUREEQUIPMENTNOT READY/AVAILABLEIF:41After0.3Fan Gear Box(M548A3)DRIVERa. Check oil level in sight glass of fan gear box.NOTEAdd mark is even with bottom of sightglass. Full mark is even with center ofsight glass.b. Fan gear box oil level must be between ADDand FULL on sight glass.Any sign ofClass III leak,no sign of oilin sight glass,or oil iscontaminated.c. If low, notify unit maintenance.0057 00-64
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