TM 5-5420-278-24&P0018 000018 00-44Table 2. Unit Preventive Maintenance Checks and Services for Interior Bay (Contd).ITEM TOITEMCHECK/EQUIPMENT NOTNO.INTERVALSERVICEPROCEDUREREADY/AVAILABLE IF:231Semi-Right outer annuallyponton lock (1)at end of baya. Inspect engagement of outer ponton lock. b. Adjust outer ponton lock (WP 0045 00).a. Outer ponton lockwill not engage.32Semi-Right and innerannuallyponton bilge plugs (2)Ensure bilge plugs are secured and notcracked or broken.Any bilge plugmissing, cracked, orbroken.1
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