What was found
SPEED BRAKES WORK INTERMITTENTLY IN FLIGHT. TROUBLE SHOT SPEED BRAKE SYSTEM & FOUND LH WOW SWITCH DEFECTIVE AND LT THROTTLE LEVER 85 PERCENT SWITCH OPERATING ARM OUT OF ADJUSTMENT. REMOVED UNSERVICEABLE LT WOW SWITCH & INSTALLED A NEW SWITCH. ADJUSTED LT THROTTLE LEVER 85 PERCENT SWITCH OPERATING LEVER. JACKED ACFT & PERFORMED LT WOW SWITCH ADJUSTMENT AND SPEED BRAKE OPERATIONAL CHECKS, NO DISCREPANCIES WERE NOTED. ACCOMPLISHED IAW MM. 32-60-00, 27-60-00