What was found
MDIS 104 05-50 4531 07SEP26 22:51 DAD OPEN CREW REPORTED "FUME EVENT. DURING FLIGHT WE NOTICED A CHEMICAL TYPE OF SMELL CLOSE TO THE CARGO DOOR WHILE IT WAS CLOSED. INITIALLY WE DID NOT NOTICE IT FROM THE COCKPIT SEATS. WE DONNED THE OXYGEN MASKS AND DIVERTED TO VVDN. THERE WERE NO CAUTION LIGHTS. THE FUMES/ODOR WERE NOT SEEN VISUALLY, THEY WERE ONLY SMELLED." CREW HAVE TRIED TO SUBMIT THE FUME WRITE UP IN WRENCH BUT IT`S PAST THE ALLOWABLE TIME TO DO THAT. PERFORMED GENERAL INSPECTION OF MAIN DECK CARGO COMPARMENT, LOWER FORWARD CARGO COMPARTMENT, AFT CARGO COMPARTMENT, E/E COMPARTMENT, ENGINE AREA, APU AREA. NO ABNORMAL FOUND. PERFORMED AIR CONDITIONING SYSTEM OIL SMOKE/FUME CONTAMINATION REMOVAL PER AMM 21-00-21-2. NO ABNORMAL NOTED. PERFORMED OIL INSPECTION/CHECK PER AMM 79-00-00-6 FOUND NORMAL. PERFORMED BOTH ENGINES RUN HIGH POWER AT 64% N1. DURING THE HIGH-POWER ENGINE RUN, THE LEFT AND RIGHT PNEUMATIC SYSTEMS WERE OPERATED INDIVIDUALLY, WITH ONLY ONE PNEUMATIC SOURCE SELECTED AT A TIME, WHILE APU BLEED SOURCE SELECTED OFF. ALSO ISOLATED L& R AIR CONDITIONING PACK SYSTEMS. NO ODOR OR ABNORMAL SMELL NOTED DURING RUN UP. ENGINES PARAMETERS WERE NORMAL. ORIG SUB DATE: 09-08-2026