What was found
ELEVATOR SERVO FAULT DURING CRUISE, FOLLOWED BY F/CTL PRIM 1 PITCH FAULT FOR 30 SEC, THEN CLEARED 1MIN, FOLLOWED BY F/CTR ELEVATOR SERVO FAULT SHOWING LT ELEV B & RT ELEV G AMBER BOXED ON F.CTLPG. REPLACED THE LT ELEVATOR POS TRANSDUCER IAW AMM 27-98--17, TESTED OK. REPLACED YELLOW SYS. ELEVATOR SERVO CONTROL UNIT AMM 27-34-51-400-801-A TEST OK.