As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
*SDR FILED OPEN* *DIV* COULD NOT ALIGN IRU'S ATTEMPTED TWICE. FMC MESSAGE IRS MOTION. (CENTER NOT ALIGNING) **OII 2** SWAPPED CENTER IRU(PART NUMBER HG1050AE15, SN 98062901) WITH RIGHT IRU (PN HG1050AD15 SN 2815) PER AMM 34-21-01. OPS CHECK OF CENTER AND LEFT IRU GOOD.