C310 pilot reported a total electrical failure inbound to hum that resulted in an msy mode C veil tr...

Narrative:

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.

Original NASA ASRS Text

Title: C310 pilot reported a total electrical failure inbound to HUM that resulted in an MSY mode C veil transponder violation.

Narrative: 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.

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.

Attributes
ACN	1336256
Time
Date	201602
Local Time Of Day	1201-1800
Place
Locale Reference	HUM.Airport
State Reference	LA
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Make Model Name	Cessna 310/T310C
Operating Under FAR Part	Part 91
Flight Phase	Descent
Route In Use	Direct
Flight Plan	None
Person 1
Function	Single Pilot
Qualification	Flight Crew Instrument Flight Crew Multiengine Flight Crew Flight Instructor Flight Crew Air Transport Pilot (ATP)
Experience	Flight Crew Last 90 Days 50 Flight Crew Total 12000 Flight Crew Type 3000
Events
Anomaly	Aircraft Equipment Problem Less Severe Airspace Violation All Types

C310 pilot reported a total electrical failure inbound to hum that resulted in an msy mode C veil transponder violation.