Incident Summary
On 21 September 2016, a Boeing 737-800 operated by Enter Air was being pushed back from its parking stand at Wrocław Airport (EPWR) at 11:24 local time. During the Before Taxi procedures, the ELEC warning light illuminated on the electrical system panel. The flight crew executed the corresponding checklist, but the fault did not clear. The captain then reported the issue and taxied the aircraft back to parking stand 14. An entry was made in the aircraft logbook, and the Maintenance Control Center (MCC) was informed.
Technical Investigation
Technical personnel arrived and performed a system test, which identified a malfunction of the static inverter. The faulty unit was replaced. The repair work proved time-consuming, leading to a decision at 11:55 to disembark the passengers. Another aircraft was arranged to transport them.
Outcome
All 185 occupants on board were uninjured. The aircraft was returned to service after the replacement. The investigation was supervised by Tomasz Makowski, and no safety recommendations were issued.