A300
Flight Crew Air Transport Pilot (ATP)
Situational Awareness; Troubleshooting
Flight Deck / Cabin / Aircraft Event Smoke / Fire / Fumes / Odor
Flight Crew Took Evasive Action; General Maintenance Action
Aircraft
After shutdown during shutdown checks cockpit filled with acrid smoke. Crew opened windows to evacuate smoke. No engines were running nor was APU. Smoke cleared after about 3 minutes. Unknown what type of smoke. Maintenance thought possibly hydraulic fluid burning. Could not locate cause. Left aircraft for maintenance to check.
The reporter stated that when Maintenance personnel entered the aircraft they recognized the glycol hydraulic fluid smell. Because no system faults were found; Maintenance guessed that after the cargo door was opened; Yellow System hydraulic fluid returned to the Green System causing a Green System over pressurization and that event released hydraulic fumes into the cargo area mixing with the air conditioning system. The reporter noticed a shortness of breath for about two days after the event and is now experiencing a cough about a month after the event. He has not sought medical attention.
An A300 cockpit filled with an acrid smoke during post flight shutdown with no engines running; so Maintenance suspected a hydraulic malfunction.