Small transport has alternators fail during climb.

Attributes
ACN	219310
Time
Date	199208
Day	Sun
Local Time Of Day	1201 To 1800
Place
Locale Reference	atc facility : ont
State Reference	CA
Altitude	msl bound lower : 14000 msl bound upper : 14000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zla
Operator	general aviation : personal
Make Model Name	Small Transport, Low Wing, 2 Recip Eng
Flight Phase	climbout : intermediate altitude
Flight Plan	None
Person 1
Affiliation	Other
Function	flight crew : single pilot
Qualification	pilot : instrument
Experience	flight time last 90 days : 31 flight time total : 574 flight time type : 31
ASRS Report	219310
Person 2
Affiliation	government : faa
Function	controller : radar
Qualification	controller : radar
Events
Anomaly	aircraft equipment problem : critical other anomaly other
Independent Detector	other flight crewa
Resolutory Action	other
Consequence	faa : reviewed incident with flight crew
Supplementary
Primary Problem	Aircraft
Air Traffic Incident	other

Narrative:

While climbing VFR out of psp to ccr at 14000 ft to 14500, both alternators failed, and we were operating on battery power only. I contacted ZLA and informed them that I was returning to psp with an alternator problem but that I did not want to declare an emergency nor did I ask for priority handling. When center handed me off to psp approach, approach asked if I had declared an emergency while with la, I replied that I had not and then I was told not to be alarmed by the emergency equipment on the taxiways when we land. Due to center declaring an emergency for me. The plane has been repaired. The problem was a short in the field of 1 alternator and the overload caused the other to blow a fuse. This was not an emergency in my judgement.

Original NASA ASRS Text

Title: SMT HAS ALTERNATORS FAIL DURING CLB.

Narrative: WHILE CLBING VFR OUT OF PSP TO CCR AT 14000 FT TO 14500, BOTH ALTERNATORS FAILED, AND WE WERE OPERATING ON BATTERY PWR ONLY. I CONTACTED ZLA AND INFORMED THEM THAT I WAS RETURNING TO PSP WITH AN ALTERNATOR PROBLEM BUT THAT I DID NOT WANT TO DECLARE AN EMER NOR DID I ASK FOR PRIORITY HANDLING. WHEN CTR HANDED ME OFF TO PSP APCH, APCH ASKED IF I HAD DECLARED AN EMER WHILE WITH LA, I REPLIED THAT I HAD NOT AND THEN I WAS TOLD NOT TO BE ALARMED BY THE EMER EQUIP ON THE TAXIWAYS WHEN WE LAND. DUE TO CTR DECLARING AN EMER FOR ME. THE PLANE HAS BEEN REPAIRED. THE PROBLEM WAS A SHORT IN THE FIELD OF 1 ALTERNATOR AND THE OVERLOAD CAUSED THE OTHER TO BLOW A FUSE. THIS WAS NOT AN EMER IN MY JUDGEMENT.

Data retrieved from NASA's ASRS site as of July 2007 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.