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Air carrier flight crew reported multiple electrical failures during cruise that resulted in a diversion.
| Attributes | |
| ACN | 1740466 |
| Time | |
| Date | 202004 |
| Environment | |
| Flight Conditions | VMC |
| Aircraft 1 | |
| Make Model Name | Commercial Fixed Wing |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Cruise |
| Route In Use | Direct |
| Flight Plan | IFR |
| Component | |
| Aircraft Component | Electrical Power |
| Person 1 | |
| Function | Pilot Flying First Officer |
| Qualification | Flight Crew Instrument Flight Crew Multiengine Flight Crew Air Transport Pilot (ATP) |
| Experience | Flight Crew Last 90 Days 159 Flight Crew Total 12176 Flight Crew Type 533 |
| Person 2 | |
| Function | First Officer Pilot Flying |
| Qualification | Flight Crew Multiengine Flight Crew Instrument Flight Crew Air Transport Pilot (ATP) |
| Experience | Flight Crew Last 90 Days 166 Flight Crew Total 24403 Flight Crew Type 2184 |
| Events | |
| Anomaly | Aircraft Equipment Problem Critical Flight Deck / Cabin / Aircraft Event Passenger Misconduct |
Narrative:
At some point after departure EICAS indicated window heat left fwd and window heat right side. As the pilot monitoring; accomplished the irregular checklist which resulted in primary heat being removed from the appropriate windows. Several hours later captain and I left the cockpit to begin our break. Shortly afterword I was summoned; informed we were diverting to ZZZZ; and returned to the cockpit. I was briefed that upon further investigation it appeared that some 38 circuit breakers had tripped and upon consultation with [maintenance control] and dispatch the decision to divert due to a possible issue with pecs system was made. I concurred with this decision. Also during this time there apparently was an issue with an uncooperative passenger leading to declaring a threat level 1 and law enforcement was requested to meet the aircraft upon arrival. We continued to ZZZZ and landed uneventfully. The entire crew coordination during this event was excellent.
Original NASA ASRS Text
Title: Air carrier flight crew reported multiple electrical failures during cruise that resulted in a diversion.
Narrative: At some point after departure EICAS indicated WINDOW HEAT L FWD and WINDOW HEAT R SIDE. As the Pilot Monitoring; accomplished the irregular checklist which resulted in primary heat being removed from the appropriate windows. Several hours later Captain and I left the cockpit to begin our break. Shortly afterword I was summoned; informed we were diverting to ZZZZ; and returned to the cockpit. I was briefed that upon further investigation it appeared that some 38 circuit breakers had tripped and upon consultation with [Maintenance Control] and Dispatch the decision to divert due to a possible issue with PECS system was made. I concurred with this decision. Also during this time there apparently was an issue with an uncooperative passenger leading to declaring a threat level 1 and law enforcement was requested to meet the aircraft upon arrival. We continued to ZZZZ and landed uneventfully. The entire crew coordination during this event was excellent.
Data retrieved from NASA's ASRS site and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.