TM 10-8415-206-12&P 4-7.  ORGANIZATIONAL PMCS - Continued Table 4-1.  Organizational Preventive Maintenance Checks and Services -  Continued LEGEND DA - Days Q - Quarterly Item No. Interval DA Q Item to  be inspected Procedures Equipment   will   be   reported not ready/ available if: 10. 120 Liner Inspect for cracks or looseness. 11. 120 Shell Inspect for cracks, dirt damaged paint or marking Shell is cracked. 12. 120 Retainer clip Inspect for loose screws and missing retainer clip plate If screws or retainer clip are missing 13. 120 Night Vision Goggles Mounting System Inspect for loose screws and and excessively loose hook and pile If screws or hook and pile are excessively loose 14. 120 Thermo Plastic Liner assembly TPL Inspect for excessively loose hook and pile. If hook and pile are Section IV.  TROUBLESHOOTING 4-8.  ORGANIZATIONAL MAINTENANCE TROUBLESHOOTING Table 4-2 contains troubleshooting information useful to you in diagnosing and correcting malfunctions or unsatisfactory operation of the flyer's protective helmet. a.  The troubleshooting table lists the common malfunctions and unsatisfactory conditions you are most likely to run into. b.  You should first find the malfunction in the table which most closely describes the problem; then perform the tests, inspections and corrective actions in the order in which they are listed. c.  This manual cannot list all possible symptoms which may occur.  If a condition exists which can- not be resolved by you, notify your supervisor. d.  For troubleshooting information applicable to the operation of the Headset-Microphone Model MK-896A/AIC, refer to TM 11-5965-279-18&P. Change 2 4-5