Flight Crew Instrument; Flight Crew Air Transport Pilot (ATP); Flight Crew Multiengine
Flight Crew Total 22000
Workload
Aircraft Equipment Problem Less Severe; Flight Deck / Cabin / Aircraft Event Smoke / Fire / Fumes / Odor
Air Traffic Control Provided Assistance; Flight Crew Diverted; Flight Crew Returned To Departure Airport; Flight Crew Landed in Emergency Condition; General Maintenance Action
Aircraft
Had a strong electrical/ozone burning smell in the cockpit for 30 seconds after feeling and hearing a loud thud. I [notified ATC] and used the electrical system fire or smoke checklist; but there was not any smoke or haze or any EICAS; MFD or PFD emergency abnormal or advisory indications so most of the checklist was not applicable.After ATC was notified; we did not have much time before we landed back: The electrical system fire or smoke checklist looked the best at the time. Looking at the checklist; it really did not apply to our situation; we never got any fire or smoke anywhere in the aircraft; just an occasional smell of electrical burning in the cockpit that lasted at most 30 seconds. But I did focus too much time on the checklists.Just read the checklist and if a bullet point does not apply go to the next bullet point and so on; and if none of the bullet points apply; then the checklist did not apply. In my case the checklist bullet points kept referring to smoke dissipation but we had no smoke or fumes so the checklist did not apply.
EMB-145 Captain reported electrical/ozone-burning odor and the electrical fire or smoke checklist was not applicable during troubleshooting.