Private instrument rated pilot of a sel small aircraft lost all electrical power during vectors for an ILS approach and continued approach to landing without benefit of a clearance for the approach or landing. Pilot believed that he was still under IFR control and would continue in a timely manner with last intended clearance. Controller suggested that he circle the field until tower signal lights were obtained.

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Attributes
ACN	411272
Time
Date	199808
Day	Sun
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : grb
State Reference	WI
Altitude	agl bound lower : 3000 agl bound upper : 3000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : grb tower : grb
Operator	general aviation : personal
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Operating Under FAR Part	Part 91
Flight Phase	descent : approach descent other
Route In Use	arrival other enroute : on vectors
Flight Plan	None
Person 1
Affiliation	Other
Function	flight crew : single pilot
Qualification	pilot : instrument pilot : private
Experience	flight time last 90 days : 40 flight time total : 385 flight time type : 275
ASRS Report	411272
Person 2
Affiliation	government : faa
Function	controller : approach
Qualification	controller : radar
Events
Anomaly	aircraft equipment problem : critical other anomaly other
Independent Detector	aircraft equipment other aircraft equipment : unspecified other flight crewa
Resolutory Action	flight crew : declared emergency other
Consequence	faa : reviewed incident with flight crew
Supplementary
Primary Problem	Aircraft
Air Traffic Incident	Pilot Deviation

Narrative:

On vectors for ILS runway 36 grb, transponder went out (multiple recycling), then all radios, then all electrical went out -- all within 5 mins. No 'low voltage' light illumination. Continued on and completed ILS runway 36 approach and landed without clearance (to enter approach) or green light to land. Judgement should have been to circle until a light signal instead of continuing approach. I continued as if on an IFR flight plan. Called tower and was 'scolded.'

Original NASA ASRS Text

Title: PVT INST RATED PLT OF A SEL SMA LOST ALL ELECTRICAL PWR DURING VECTORS FOR AN ILS APCH AND CONTINUED APCH TO LNDG WITHOUT BENEFIT OF A CLRNC FOR THE APCH OR LNDG. PLT BELIEVED THAT HE WAS STILL UNDER IFR CTL AND WOULD CONTINUE IN A TIMELY MANNER WITH LAST INTENDED CLRNC. CTLR SUGGESTED THAT HE CIRCLE THE FIELD UNTIL TWR SIGNAL LIGHTS WERE OBTAINED.

Narrative: ON VECTORS FOR ILS RWY 36 GRB, XPONDER WENT OUT (MULTIPLE RECYCLING), THEN ALL RADIOS, THEN ALL ELECTRICAL WENT OUT -- ALL WITHIN 5 MINS. NO 'LOW VOLTAGE' LIGHT ILLUMINATION. CONTINUED ON AND COMPLETED ILS RWY 36 APCH AND LANDED WITHOUT CLRNC (TO ENTER APCH) OR GREEN LIGHT TO LAND. JUDGEMENT SHOULD HAVE BEEN TO CIRCLE UNTIL A LIGHT SIGNAL INSTEAD OF CONTINUING APCH. I CONTINUED AS IF ON AN IFR FLT PLAN. CALLED TWR AND WAS 'SCOLDED.'

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.