Date: 201704
Local time of day: 1801-2400
Location: ZZZ.Airport, US
Light: Night
Aircraft: A300
Operator: Air Carrier
Operating under: Part 121
Flight plan: IFR
Mission: Passenger
Flight phase: Cruise
ATC / advisory: Tower ZZZ
Aircraft component: Powerplant Lubrication System
Component problem: Malfunctioning
Reporter organization: Air Carrier
Reporter function: Captain; Pilot Flying
Reporter qualification: Flight Crew Air Transport Pilot (ATP)
Second reporter function: Pilot Flying; First Officer
Anomaly: Aircraft Equipment Problem Critical; Flight Deck / Cabin / Aircraft Event Smoke / Fire / Fumes / Odor
Detector: Person Flight Crew
When detected: In-flight
Result: Air Traffic Control Issued New Clearance; Air Traffic Control Provided Assistance; Flight Crew Diverted; Flight Crew Landed in Emergency Condition; Flight Crew Rejected Takeoff
Contributing factors: Aircraft
Primary problem: Aircraft

Narrative: During takeoff; we performed a rejected takeoff at approximately 75 knots for an ECAM 'No 1 Eng Oil Filter Clog'. Maintenance then replaced the oil filter and cleared the write up. During the subsequent engine run up; using 'B igniters' there was no light off on the #1 engine. MEL procedures were accomplished and a second takeoff was performed. At  level off cruise altitude of FL 330; oil bugs were set to 16 quarts on each oil gauge to match the indicated oil quantity readings  on the engines. Approximately 15-20 minutes later; engine #1 oil quantity was noted to have decreased to about 13.5 quarts; with engine #2 oil quantity holding steady at 16 quarts; 5-10 minutes later the quantity decreased to approximately 12.5-13.0 quarts on the #1 oil quantity gauge. All # 1 engine indications appeared normal at this time and remained so for the rest  of the flight. The First Officer opened the cockpit door and smelled fumes and noticed reduced visibility in the cabin area. We made the decision to land at the nearest suitable airport. Company divert ACARS message was sent and we coordinated a [diversion] with Center. Oil quantity continued to decrease to about 12 quarts before landing. We smelled fumes in the cockpit; so both of us donned our oxygen masks. We made an uneventful landing. After exiting the runway; Crash Fire Rescue performed an inspection of our aircraft and found no leaks or smoke coming from the airplane; so we continued our taxi to the ramp. Additional; related information noted on the first leg of the day; flying the same tail number; was that during the pre-flight the #2 HP valve was found to be stuck and eventually got fixed; and also we got a ECAM for a Trim Tank Isolation Valve stuck closed message right after takeoff (TT Isolation Valve should have opened at slat retract). Maintenance told us that this airplane had been on the ground for some time before our flight.


Second narrative: Approximately an hour into the flight; while accessing the cabin for a bathroom break; I became aware of reduced visibility in the cabin due to fumes and we immediately shut the flight deck door; and made provisions to divert. The smell of fumes became more prominent in the flight deck itself and we donned our oxygen masks. We had just enough time to make appropriate notifications and complete normal checklists prior to an immediate and uneventful landing.


Synopsis: A300 Flight Crew reported a decrease in the #1 engine oil quantity in cruise with subsequent fumes and reduced visibility. Flight diverted without further incident.