As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
`L REV UNLOCKED` INFLIGHT CLIMBING THROUGH 18,000 FEET. A/C WAS STABLE AND CONTROLLED. A/C DID NOT BUFFET OR YAW. DIVERTED TO BZN. FOUND LEFT REVERSER STOW MICROSWITCH OUT OF ADJUSTMENT, ADJUSTED STOW SWITCH IAW MM 78-37-01. OPS CHECK GOOD.