As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: RIGHT HAND OFF WING SLIDE RESERVOIR BOTTLE WILL NOT ACCEPT SAFETY LOCK OUT PIN AND CABLE B-NUT IS DISCONNECTED FROM REGULATOR. REPLACED RIGHT HAND OFF WING SLIDE RESERVOIR BOTTLE AND ACCOMPLISHED A SATISFACTORY OPERATIONAL CHECK PER AMM 25-62-46.