What was found
WHEN FLYING FROM 26,000 TO 28,000 FT IN TURBULANCE. ABOVE MACH 0.80, NOSE GEAR DOOR LIGHT FLICKERED ON AND OFF, FOLLOWED BY A LOUD BANGING NOISE. JACKED NOSE LANDING GEAR. PERFORMED ADJUSTMENT, TEST OF NOSE WHEEL WELL DOORS PER MM 32-22-1. PERFORMED ADJUSTMENT TEST OF LANDING GEAR DOOR WARNING SWITCH PER MM 32-62-11. ALL OPERATIONAL CHECKS NORMAL ON GROUND.