Cessna 402C pilot reported returning to the departure airport after experiencing loss of both altern...

Attributes
ACN	1390969
Time
Date	201609
Local Time Of Day	0601-1200
Place
Locale Reference	ZZZ.Airport
State Reference	US
Environment
Light	Daylight
Aircraft 1
Make Model Name	Cessna 402/402C/B379 Businessliner/Utiliner
Operating Under FAR Part	Part 91
Flight Phase	Initial Climb
Flight Plan	IFR
Component
Aircraft Component	AC Generator/Alternator
Person 1
Function	Single Pilot Pilot Flying
Qualification	Flight Crew Flight Instructor Flight Crew Multiengine Flight Crew Air Transport Pilot (ATP)
Events
Anomaly	Aircraft Equipment Problem Less Severe

Narrative:

I did a full run up before the first flight of the day. I taxied out to [the] runway after picking up my IFR clearance. I was cleared for takeoff and started the roll down the runway. At 500 ft; I saw the left alt light come on. I called the tower; told them I would switch to approach because I needed to fly the approach and return to land. Before I could switch; the right alt light came on too. I informed approach of the situation; and said I needed to come back in and land as soon as possible. I leveled off; and began to run through the dual alternator failure checklist. At this point the low volt light came on as well. I shut off all unnecessary electrical equipment and let operations know what was going on. Approach brought me in on final; I put the gear down and switched over to tower. I was cleared to land and landed with no further incidence.

Original NASA ASRS Text

Title: Cessna 402C pilot reported returning to the departure airport after experiencing loss of both alternators.

Narrative: I did a full run up before the first flight of the day. I taxied out to [the] runway after picking up my IFR clearance. I was cleared for takeoff and started the roll down the runway. At 500 ft; I saw the left alt light come on. I called the tower; told them I would switch to Approach because I needed to fly the approach and return to land. Before I could switch; the right alt light came on too. I informed Approach of the situation; and said I needed to come back in and land as soon as possible. I leveled off; and began to run through the dual alternator failure checklist. At this point the low volt light came on as well. I shut off all unnecessary electrical equipment and let Operations know what was going on. Approach brought me in on final; I put the gear down and switched over to tower. I was cleared to land and landed with no further incidence.

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.