Systematic work on which no less than one-fourth inch in thickness. Cut in halves.

TANKS 0.035-CUBIC-METER (12.3-CUBIC-FOOT) CAPACITY 7240 kN/m? (1050 PSIA) MAXIMUM PRESSURE UMBILICAL SERVICE PANEL (DISCONNECTED — AT T — 25 min) Y — 30 min Secure white room; ground crew retires to failback area.