What was found
PDX- 'SUP'ON FLIGHT 2527 DURING APPROACH LAVATORY SMOKE DETECTOR ACTIVATED SHORTLY AFTER BLEED SYSTEM CHANGED OVER TO APU AIR. NO SMOKE NOTED. REMOVED AND REPLACED APU. OPERATIONAL CHECKS GOOD. AIRCRAFT RETURNED TO SERVICE.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
PDX- 'SUP'ON FLIGHT 2527 DURING APPROACH LAVATORY SMOKE DETECTOR ACTIVATED SHORTLY AFTER BLEED SYSTEM CHANGED OVER TO APU AIR. NO SMOKE NOTED. REMOVED AND REPLACED APU. OPERATIONAL CHECKS GOOD. AIRCRAFT RETURNED TO SERVICE.