What was found
AIRCRAFT WAS GROUNDED: MUSTY OR DIRTY SOCK SMELL IN CABIN. C/W JOB CARD 26L00021001, 26L00021002, 26L00021004 AND FOUND APU WAS SOURCE OF ODOR. REPLACED APU TURBINE CAVITY VENT O-RINGS.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
AIRCRAFT WAS GROUNDED: MUSTY OR DIRTY SOCK SMELL IN CABIN. C/W JOB CARD 26L00021001, 26L00021002, 26L00021004 AND FOUND APU WAS SOURCE OF ODOR. REPLACED APU TURBINE CAVITY VENT O-RINGS.