As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER T/O A RUMBLE NOISE IN THE RIGHT PACK. SWITHCHED TO LEFT PACK. LATER IN FLIGHT RESELECTED RIGHT PACK AND WENT UNCONTROLLABLE (TEMP) AND SMELLED SMOKE IN COCKPIT. REPLACED FLOW CONTROL VALVE PER MM 21-51-01. OPS, LEAK AND BITE TEST NORMAL. CLEARED M184618. PLACARD REMOVED. P/N ON/OFF 396496-1 S/N ON 286 OFF 178.