TM 5-4220-231-14&PTable 2-1. Operator Preventive Maintenance Checks and Services For Diving Operations - (Con't).B-Before D-During A-After W-WeeklyITEMINTERVAL ITEM TO BE INSPECTED.Equipment isNONot Ready/B D A FWPROCEDURESAvailable If:180Flasks, HP (18). Inspect end of flask forCertificationmanufacturer's label. Ensure flask has a valid testRecorddate (within 3 years).showsexpired testdate0 0Inspect external surface for the following:Exposedgroups ofAbrasion damagefibers exceed.010 in.(.254mm)thick and .125in. (3.175mm)wideCut damageCut exceeds.005 in.(. 127mm)deepDents or bruisesDamageaffectsstructuralconfiguration.2-25
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