Cessna 310/T310C
Flight Crew Instrument; Flight Crew Multiengine; Flight Crew Flight Instructor; Flight Crew Air Transport Pilot (ATP)
Flight Crew Last 90 Days 50; Flight Crew Total 12000; Flight Crew Type 3000
Aircraft Equipment Problem Less Severe; Airspace Violation All Types
Aircraft
Cruise at 5500 feet and I experienced total electrical failure; all instruments; transponder; lights; flaps and landing gear inoperable. I texted my son and gave him the phone number of the Houma-Terrebonne (HUM) tower to call and tell the Tower I was NORDO and no electrical. I have memorized the HUM tower phone number. I texted him to call them and tell them I would arrive and needed a light signal to land at their Class D airport. I would try to call the tower as I was closer but did not know if I could understand them on the cell phone by voice. I probably violated the airspace of Class B MSY for the encoder/transponder veil. Also I learned later that HUM tower did call the MSY approach controller to tell him he would have primary target only as I was totally no electrical. I lowered the landing gear manually; called the HUM tower by telephone and received a verbal clearance to land and taxi to the ramp. No problems; no damage; no injuries; no traffic conflicts. All is ok except I violated the encoder veil because of no electrical power.
C310 pilot reported a total electrical failure inbound to HUM that resulted in an MSY mode C veil transponder violation.