What was found
ALTIMETERS ACTS LIKE A VSI INDICATION FO/CAPT DIFFERENT BETWEEN RT AND LT WAS 180’ FLUCTUATED TO 220 AND EICAS MSG ALT DISCREPANCY. T/S SYSTEM CAPT/FO ALTIMETER FOUND WATER IN CAPTS PRIMARY STATIC SYSTEM PLUMBING ACCOMPLISHED PITOT/STATIC SYSTEM FLUSH AS PER AMM 34-11-00. REMOVED MOISTURE SYSTEM A/C SYSTEM CHECKS OK. REMOVED AND REPLACED LT AND RT ADC P/N 4040800-906, SERIAL NUMBER 82110355 IAW 34-12-01 BITE CK OPS OK. ACMP MCDP TEST 30 AS PER AMM 22-00-02. REFM EICAS BITE. NO FAULTS NOTED. REMOVED DISPLAY AND CLEANED COOLING AIR SCREEN. REINSTALLED DISPLAY UNIT DISPLAY OK. FIM 34-41-00 AMM 31-41-01.