What was found
FLIGHT RETURNED TO DEPARTURE AFTER SMOKE ACCUMULATED IN THE CABIN AND COCKPIT. THE AFT LAVATORY SMOKE DETECTOR ALSO SOUNDED BRIEFLY. MAINTENANCE REPLACED A LEAKING APU AND ACCOMPLISHED THE PNEUMATIC SYS DUCT BURN OUT PROCEDURES.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
FLIGHT RETURNED TO DEPARTURE AFTER SMOKE ACCUMULATED IN THE CABIN AND COCKPIT. THE AFT LAVATORY SMOKE DETECTOR ALSO SOUNDED BRIEFLY. MAINTENANCE REPLACED A LEAKING APU AND ACCOMPLISHED THE PNEUMATIC SYS DUCT BURN OUT PROCEDURES.