What was found
MCI - FLT 173 - DURING CRUISE, CABIN PRESSURE COULD NOT BE MAINTAINED. REPOSITIONED AND RETORQUED LEFT AIR CYCLE MACHINE DUCT BOOT. LEAK CHECK AND OPERATIONAL CHECK NORMAL. (M)
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
MCI - FLT 173 - DURING CRUISE, CABIN PRESSURE COULD NOT BE MAINTAINED. REPOSITIONED AND RETORQUED LEFT AIR CYCLE MACHINE DUCT BOOT. LEAK CHECK AND OPERATIONAL CHECK NORMAL. (M)