A320
Flight Crew Multiengine; Flight Crew Air Transport Pilot (ATP); Flight Crew Instrument
Troubleshooting
Aircraft Equipment Problem Less Severe; Deviation / Discrepancy - Procedural Published Material / Policy; Flight Deck / Cabin / Aircraft Event Smoke / Fire / Fumes / Odor
General Flight Cancelled / Delayed; General Maintenance Action
Aircraft
Upon applying APU bleed at gate; entire aircraft experienced a strong dirty socks odor. Pack isolation did not resolve issue. APU bleed off decreased intensity; but strong residual odor remained onboard. Crew deplaned shortly after bleed turned off.
Air Carrier pilot reported a fume event upon applying APU bleeds at gate. APU bleeds were turned off and the crew deplaned.