As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT NR 4948 - BOS-YQB - AFTER REACHING CRUISE ALTITUDE, THE CAPTAIN REPORTED THAT THE OUTER WING DE-ICE BOOTS WERE NOT INFLATING. THE AIRCRAFT RETURNED TO BOS AND LANDED WITHOUT INCIDENT. MAINTENANCE PERFORMED AN INSPECTION OF THE DE-ICE BOOTS AND OPERATIONAL CHECKED THE SYSTEM. NO FAULTS WERE FOUND. AIRCRAFT WAS RETURNED TO SERVICE. (M)