As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FIFTEEN MINUTES INTO FLIGHT NR 2 INS FAULT. CVMP QRH PROCEDURE. ALSO INDICATIONS OF LOSS OF ADC 2. NO FLIGHT DIRECTOR OR SPEED TAPE ON FIRST OFFICERS FLIGHT DISPLAY. SELECTING ADC 2 NON-RVSM RESULTING IN DIVERT. DUPLICATED DISCREPANCY FOUND NR 2 IRU INOPERATIVE. ISDU SHOWS FAULT CODE 1. R & R NR 2 IRU IAW AMM 34-25-34-04. OPERATIONS CHECKED NORMAL. ACFT LLM & RVSM CAPABLE. OK FOR SERVICE. IRU PN HG1050BD07, SN 98021001 & REPLACED NR 2 IRU.