B737 Undifferentiated or Other Model
Flight Crew Air Transport Pilot (ATP)
Flight Crew Last 90 Days 200; Flight Crew Total 15000; Flight Crew Type 3500
Aircraft Equipment Problem Less Severe; Flight Deck / Cabin / Aircraft Event Smoke / Fire / Fumes / Odor; Ground Event / Encounter Other / Unknown
Aircraft Aircraft Damaged; General Maintenance Action; General Flight Cancelled / Delayed
Aircraft; Equipment / Tooling
While deplaning at the gate; ramp personal plugged external power into the aircraft. Pilots heard a loud banging noise and followed by a burnt electrical smell. The First Officer and I both opened our windows to evaluate the situation. I told ramp to immediately disconnect the external power. He replied it is already disconnected. I noticed a Maintenance Technician already waiting at the gate; when we arrived. He immediately inspected aircraft. Pilots later noticed some smoke enter flight deck; either through First Officer's open window or right side floor panels. Maintenance opened E and E compartment and reported no fire. I confirmed no fire with Maintenance and verbally with Mechanic. I made a log book write up and aircraft was removed from service.
[Report narrative contained no additional information].
B737 flight crew reports a loud banging noise and electrical fumes as ground power is connected to the aircraft at the gate. Ground power is quickly disconnected and the aircraft is taken out of service for maintenance.