army, helicopter, lifts, rocks, cracked, from, large, boulders, hillside, behind, homes, ala, mahina, place, in, moanalua, valley, were, removed, as, safety, precaution, busted, boulder, parts, taken, to, grounds, tripler, medical, center, work, crew, grabs, line, with, hooks, attached, white, bags, filled, that, once, signals, ok, lift, rock-filled, are, away, by, stored, removes, pieces, menaced