As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SHIP 1603 - RVSM - CAPT ALTIMETER 150 LOWER THAN FO ALTIMETER AND 600 LOWER THAN STANDBY ABOVE 20,000. CORRECTIVE ACTION: RPLCD CAPTS ALTIMETER PER B767-300 AMM 34-13 AND LT ADC PER B767 -300 AMM 34-12 TEST 30 PASS. OK FOR SRVC (4914450)