As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: FLIGHT CREW REPORTED A STRONG OBNOXIOUS ODOR WITH APU ON THROUGHOUT FLIGHT DECK AND CABIN. MAINTENANCE FOUND APU AIR INTAKE CONTAMINATED WITH DIRT AND FLUIDS. MAINTENANCE FOUND COOLING FAN LEAKING ON APU, REPLACED COOLING FAN PER AMM 49-52-51. PERFORMED APU INLET CLEANING PER J/C 26T31049004 AND DECONTAMINATION OF ECS PER J/C 26L00021004. ACCOMPLISHED SATIFACTORY OPERATIONS CHECK AND LEAK CHECK.