PA32 pilot has loss of electrical power during approach to land; executes a gear up landing.

Attributes
ACN	690546
Time
Date	200603
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : zzz.airport
State Reference	US
Altitude	agl single value : 0
Environment
Flight Conditions	VMC
Weather Elements	Windshear
Light	Daylight
Aircraft 1
Controlling Facilities	tower : zzz.tower
Operator	common carrier : air taxi
Make Model Name	PA-32 Cherokee Six/Lance/Saratoga
Operating Under FAR Part	Part 135
Flight Phase	descent : approach landing : roll
Route In Use	approach : visual
Flight Plan	IFR
Person 1
Affiliation	company : air taxi
Function	flight crew : single pilot
Qualification	pilot : instrument pilot : commercial pilot : cfi pilot : multi engine pilot : private
Experience	flight time last 90 days : 250 flight time total : 1400 flight time type : 120
ASRS Report	690546
Events
Anomaly	aircraft equipment problem : critical ground encounters : gear up landing
Independent Detector	other flight crewa
Resolutory Action	none taken : detected after the fact
Consequence	other
Supplementary
Problem Areas	Aircraft Flight Crew Human Performance
Primary Problem	Ambiguous

Narrative:

I was en route to ZZZ airport. I was cleared for a visual approach for runway and was handed off to tower. I checked in with the tower; #2 in sequence to land; and tower cleared me to land. 5 mi out on final approach; I extended my landing gear and saw 3 green lights. 3-4 mi on the final approach segment; I lost all electrical power; battery and alternator. I had no indications of any loss of electrical power prior to this and was really concerned about not having any battery backup. I went through my loss of electrical power checklist quickly and was more concerned with getting my communications back on line; since I knew my gear was down prior to failure. Unfortunately no success in restoring power occurred and when I landed on the runway the gear was not fixed in position and landed flat/no gear.

Original NASA ASRS Text

Title: PA32 PLT HAS LOSS OF ELECTRICAL PWR DURING APCH TO LAND; EXECUTES A GEAR UP LNDG.

Narrative: I WAS ENRTE TO ZZZ ARPT. I WAS CLRED FOR A VISUAL APCH FOR RWY AND WAS HANDED OFF TO TWR. I CHKED IN WITH THE TWR; #2 IN SEQUENCE TO LAND; AND TWR CLRED ME TO LAND. 5 MI OUT ON FINAL APCH; I EXTENDED MY LNDG GEAR AND SAW 3 GREEN LIGHTS. 3-4 MI ON THE FINAL APCH SEGMENT; I LOST ALL ELECTRICAL PWR; BATTERY AND ALTERNATOR. I HAD NO INDICATIONS OF ANY LOSS OF ELECTRICAL PWR PRIOR TO THIS AND WAS REALLY CONCERNED ABOUT NOT HAVING ANY BATTERY BACKUP. I WENT THROUGH MY LOSS OF ELECTRICAL PWR CHKLIST QUICKLY AND WAS MORE CONCERNED WITH GETTING MY COMS BACK ON LINE; SINCE I KNEW MY GEAR WAS DOWN PRIOR TO FAILURE. UNFORTUNATELY NO SUCCESS IN RESTORING PWR OCCURRED AND WHEN I LANDED ON THE RWY THE GEAR WAS NOT FIXED IN POS AND LANDED FLAT/NO GEAR.

Data retrieved from NASA's ASRS site as of January 2009 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.