TM 5-5420-278-24&P0018 000018 00-46Table 2. Unit Preventive Maintenance Checks and Services for Interior Bay (Contd).ITEM TOITEMCHECK/EQUIPMENT NOTNO.INTERVALSERVICEPROCEDUREREADY/AVAILABLE IF:21336Semi-Left inner and annuallyouter ponton bilge plugs (3)Ensure bilge plugs are secured and notcracked or broken.Any bilge plugmissing, cracked, orbroken.35Semi-Longitudinal annuallyupper coupling (2) and receptacleblocks (1)NOTEReceptacle consists of entirehousing (block) in whichconnector is seated.a. Inspect seams on welded insert blocksfor cracks or broken welds.b. Inspect receptacle area for cracks,broken welds, elongation, and deformation.a. Cracks or brokenwelds noted. b. Cracks, brokenwelds, elongation, ordeformationprevents properseating of connector.
Integrated Publishing, Inc. - A (SDVOSB) Service Disabled Veteran Owned Small Business