TM 10-3930-669-10 Table 2-3.  Operator Preventive Maintenance Checks and Services - CONT. Location Item Interval Item to Procedure Not Fully Mission No. Check/Service Capable If: MONTHLY EXTERIOR- Continued 29 Monthly Handles and Check for damage, rust, and corrosion. Anti-skid Steps Notify Unit Maintenance. 30 Monthly Access Doors Check for missing or loose attaching parts and broken or loose door latches and door hinges.  Notify Unit Maintenance. 31 Monthly Engine Access Check for missing or loose attaching Panel parts and broken or loose access panel hinge.  Notify Unit Maintenance. 32 Monthly Cab Door Check for missing or loose attaching parts and broken or loose door latches and door hinges.  Notify Unit Maintenance. 2-25