As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) LIGHT BLUE SMOKE REPORTED IN COCKPIT AFTER ENGINE START. BOTH NR 1 & NR 2 ENGINE BLEEDS SWITCHED WERE ON WITH RECIRCULATION FAN ON. ENGINES WERE SUBSEQUENTLY SHUTDOWN AND A REPORT OF MILD OIL SMELL REPORTED BY THE CREW. NO MEDICAL ACTION WAS REQUIRED AS A RESULT OF THIS EVENT. THE ENGINEERS HAVE CONFIRMED THE SOURCE OF THE SMOKE AS THE NR 1 ENGINE. THE P2.5 VALVE HAD SEIZED DUE TO PISTON RING CORROSION. THE VALVE WILL BE REPLACED.