Private pilot of a mooney 20L lost all electrical power and called the destination tower on a cellular phone to advise of his problem and obtain landing instructions. He did, and received a red flashing light to clear the runway after landing.

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Attributes
ACN	445926
Time
Date	199908
Day	Thu
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : bjc.airport
State Reference	CO
Altitude	agl bound lower : 0 agl bound upper : 6000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tower : bjc.tower
Operator	general aviation : personal
Make Model Name	M-20 L
Operating Under FAR Part	Part 91
Navigation In Use	other
Flight Phase	cruise : level descent : approach landing : roll
Flight Plan	VFR
Person 1
Affiliation	other
Function	flight crew : single pilot
Qualification	pilot : private
Experience	flight time last 90 days : 35 flight time total : 75 flight time type : 75
ASRS Report	445926
Person 2
Affiliation	government : faa
Function	controller : local
Qualification	controller : non radar
Events
Anomaly	aircraft equipment problem : critical other anomaly other
Independent Detector	aircraft equipment other aircraft equipment : lost all electrical pwr other flight crewa
Resolutory Action	flight crew : landed in emergency condition
Consequence	faa : reviewed incident with flight crew other
Supplementary
Problem Areas	Flight Crew Human Performance Aircraft
Primary Problem	Aircraft

Narrative:

As I passed cos, my friend's microphone was losing power. The ADF went out, then transponder, then radios and finally the GPS/communication. We lost all electrical system and navaids. We decided to use my cell phone to call the tower and turn off the avionics master. I called the tower and was only able to tell them my location and that I lost my radios and transponder. As we got within 7 mi of jeffco we tried turning on the avionics master and the GPS/communication. It came on and I again told them my situation. They told me to enter a right base for runway 11R. They told me to expect runway 11R. I also asked for light signals. I then lost radio communication again. I proceeded to land in that when told to expect the runway that it constitutes clearance in the event of lost communication. We looked for light signals but none were given. We then landed and saw a flashing red light telling me to get off the runway. I then got off the runway and put the plane away and immediately went and talked to the tower.

Original NASA ASRS Text

Title: PVT PLT OF A MOONEY 20L LOST ALL ELECTRICAL PWR AND CALLED THE DEST TWR ON A CELLULAR PHONE TO ADVISE OF HIS PROB AND OBTAIN LNDG INSTRUCTIONS. HE DID, AND RECEIVED A RED FLASHING LIGHT TO CLR THE RWY AFTER LNDG.

Narrative: AS I PASSED COS, MY FRIEND'S MIKE WAS LOSING PWR. THE ADF WENT OUT, THEN XPONDER, THEN RADIOS AND FINALLY THE GPS/COM. WE LOST ALL ELECTRICAL SYS AND NAVAIDS. WE DECIDED TO USE MY CELL PHONE TO CALL THE TWR AND TURN OFF THE AVIONICS MASTER. I CALLED THE TWR AND WAS ONLY ABLE TO TELL THEM MY LOCATION AND THAT I LOST MY RADIOS AND XPONDER. AS WE GOT WITHIN 7 MI OF JEFFCO WE TRIED TURNING ON THE AVIONICS MASTER AND THE GPS/COM. IT CAME ON AND I AGAIN TOLD THEM MY SIT. THEY TOLD ME TO ENTER A R BASE FOR RWY 11R. THEY TOLD ME TO EXPECT RWY 11R. I ALSO ASKED FOR LIGHT SIGNALS. I THEN LOST RADIO COM AGAIN. I PROCEEDED TO LAND IN THAT WHEN TOLD TO EXPECT THE RWY THAT IT CONSTITUTES CLRNC IN THE EVENT OF LOST COM. WE LOOKED FOR LIGHT SIGNALS BUT NONE WERE GIVEN. WE THEN LANDED AND SAW A FLASHING RED LIGHT TELLING ME TO GET OFF THE RWY. I THEN GOT OFF THE RWY AND PUT THE PLANE AWAY AND IMMEDIATELY WENT AND TALKED TO THE TWR.

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.