Be-76 instructor and student pilots reported experiencing total electrical failure during cruise.

Attributes
ACN	1704170
Time
Date	201911
Local Time Of Day	1201-1800
Place
Locale Reference	ZZZ.TRACON
State Reference	US
Environment
Flight Conditions	VMC
Light	Night
Aircraft 1
Make Model Name	Duchess 76
Operating Under FAR Part	Part 91
Flight Phase	Cruise
Route In Use	Direct
Flight Plan	None
Component
Aircraft Component	Electrical Power
Person 1
Function	Pilot Flying Instructor
Qualification	Flight Crew Multiengine Flight Crew Instrument Flight Crew Commercial Flight Crew Flight Instructor
Experience	Flight Crew Last 90 Days 190 Flight Crew Total 1133 Flight Crew Type 81
Person 2
Function	Pilot Not Flying Trainee
Qualification	Flight Crew Instrument Flight Crew Private
Experience	Flight Crew Last 90 Days 68 Flight Crew Total 235 Flight Crew Type 10
Events
Anomaly	Aircraft Equipment Problem Critical Deviation - Procedural Clearance Deviation - Procedural Published Material / Policy

Narrative:

During cruising flight over zzzzz intersection on the way back to ZZZ (22 miles west ZZZ VOR on the radial 253) [we experienced] total electrical failure. (Emergency checklist [was] followed with no success).comm 1; navigation 1 and GPS lost. Used comm 2 as alternative to transmit the last communication to approachapproach cleared me to the B airspace.lost comm 2 (only receiving was reliable and could not transmit); navigation 2; pfd and mfd lost too. Only transponder was totally functional. Approach request to acknowledge instructions via ident.10 nm north west of ZZZ1; lost engine indications.engines were still running.used transponder code 7700.approach cleared me to ZZZ1 and maneuver as practical to descent.runway xx in use and cleared to land. (Aircraft refueled full tanks at ZZZ2) endurance with full tanks: 5.5 hours approximately flight time after refueling when emergency occurred: 2.1 hrs.

Original NASA ASRS Text

Title: BE-76 instructor and student pilots reported experiencing total electrical failure during cruise.

Narrative: During cruising flight over ZZZZZ Intersection on the way back to ZZZ (22 miles west ZZZ VOR on the radial 253) [We experienced] total electrical failure. (Emergency checklist [was] followed with no success).Comm 1; NAV 1 and GPS lost. Used comm 2 as alternative to transmit the last communication to approachApproach cleared me to the B airspace.Lost comm 2 (only receiving was reliable and could not transmit); NAV 2; PFD and MFD lost too. Only transponder was totally functional. Approach request to acknowledge instructions via ident.10 nm north west of ZZZ1; lost engine indications.Engines were still running.Used transponder code 7700.Approach cleared me to ZZZ1 and maneuver as practical to descent.Runway XX in use and cleared to land. (Aircraft refueled full tanks at ZZZ2) Endurance with full tanks: 5.5 hours approximately Flight time after refueling when emergency occurred: 2.1 hrs.

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.