Date: 201812
Local time of day: 1201-1800
Location: ZZZ.TRACON, US
Flight conditions: VMC
Aircraft: B767 Undifferentiated or Other Model
Operator: Air Carrier
Operating under: Part 121
Flight plan: IFR
Mission: Passenger
Flight phase: Descent
Airspace: Class E ZZZ
ATC / advisory: TRACON ZZZ
Aircraft component: Electrical/Electronic Panel & Parts
Component problem: Malfunctioning
Reporter organization: Air Carrier
Reporter function: First Officer; Pilot Not Flying
Reporter qualification: Flight Crew Instrument; Flight Crew Multiengine; Flight Crew Air Transport Pilot (ATP)
Human factors: Physiological - Other
Second reporter function: Captain; Pilot Flying
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 Provided Assistance; Flight Crew Overcame Equipment Problem; Flight Crew Requested ATC Assistance / Clarification; Flight Crew Landed in Emergency Condition
Contributing factors: Aircraft
Primary problem: Aircraft

Narrative: Descending through 14;000 feet into ZZZ; we noticed electrical fire fumes and smoke coming from the panel above the Captain's forward window. We donned O2 masks and goggles while the relief pilot ran us through the Smoke/Fumes Elimination checklist. Captain flew and I performed PM duties while monitoring the checklist. Relief pilot coordinated with the flight attendants using the TEST memory aid.  I requested priority handling onto the arrival; and we were cleared direct to the FAF for a visual approach to XXC in VMC conditions with light winds. We remained on O2 until after rollout on the runway and determining the smoke had cleared.  We had previously cleared our exit plan with ATC and directed the cabin crew not to initiate an evacuation. ARFF vehicles checked the aircraft for fire and followed us to the gate; where we shut down and asked them to check the cockpit; as the APU would not start; several switches in that vicinity of the overhead panel were very hot; and we were concerned about the smoke returning if power was applied to the aircraft at the gate. After the overhead panel was checked by ARFF personnel and hot spots were confirmed with their thermal imaging; we were cleared to deplane passengers at the gate with electrical power remaining off. We completed a maintenance debrief; were met by Company Operations; and departed after passengers had deplaned.


Second narrative: Inbound on arrival a strong acrid odor developed in the cockpit followed by fairly heavy smoke coming through the left forward window AC ducting. We immediately donned our oxygen masks and goggles and established communications amongst ourselves. We received expedited routing from ATC and speed at our discretion. We maintained 320 knots until 4;000 feet. While the First Officer and I flew the aircraft and communicated with ATC and notified the company what was happening the Relief Officer ran the checklist and coordinated with the flight attendants. We had requested ARFF for the landing; and when we pulled off of the runway; they did an exterior assessment of the aircraft. They saw no signs of fire; so we then taxied to the gate where they did an inspection of the cockpit and found no fire.


Synopsis: B767 flight crew reported an electrical smoke/fumes event during arrival emanating from the Captain's panel above the forward window. The crew donned the O2 masks; requested priority handling and landed uneventfully.