The reporter had a gear up landing with the landing gear indicating in the down position as per the ...

Attributes
ACN	323404
Time
Date	199512
Day	Sat
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : o85
State Reference	CA
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	general aviation : instructional
Make Model Name	PA-24 Comanche
Operating Under FAR Part	Part 91
Flight Phase	landing other
Flight Plan	None
Person 1
Affiliation	company : air carrier
Function	flight crew : single pilot
Qualification	pilot : student
Experience	flight time last 90 days : 12 flight time total : 34 flight time type : 15
ASRS Report	323404
Events
Anomaly	aircraft equipment problem : critical conflict : ground critical other anomaly other
Independent Detector	other other : unspecified cockpit
Resolutory Action	none taken : detected after the fact
Consequence	other
Supplementary
Primary Problem	Aircraft
Air Traffic Incident	other

Narrative:

Around XX00 am I was departing O8S to practice takeoff and lndgs. On downwind I extended my landing gear and got a down and green indication. I then set 9 degrees of flaps as I was turning base. I then noticed no sidetone in my headset, when announcing my position. I checked the radio and noticed the entire avionics stack was without power. I checked the generator switch (on), and the circuit breakers (all in). By this time I was on short final and did a 'gump check' (fuel pump on, undercarriage down and locked, mixture rich, propeller forward). Not knowing the gear was not down and locked I executed a landing and slid about 400 ft. No injuries. Aircraft damage minimal. (Propeller bent, ADF antenna broke, belly rash.) even after I slid in, the 'down and green' light was illuminated! Callback conversation with reporter revealed the following information: the reporter stated as of this date he does not know why the gear indicated down and was not. He stated the comanche has a reputation for gear problems. Just this week the repairs were commenced and as yet no explanation for the erroneous indication. This airplane is owned by the reporter. The reporter has since the report gotten his private license.

Original NASA ASRS Text

Title: THE RPTR HAD A GEAR UP LNDG WITH THE LNDG GEAR INDICATING IN THE DOWN POS AS PER THE GREEN GEAR DOWN LIGHTS. THE RPTR LOST HIS RADIOS DURING THE APCH TO LNDG.

Narrative: AROUND XX00 AM I WAS DEPARTING O8S TO PRACTICE TKOF AND LNDGS. ON DOWNWIND I EXTENDED MY LNDG GEAR AND GOT A DOWN AND GREEN INDICATION. I THEN SET 9 DEGS OF FLAPS AS I WAS TURNING BASE. I THEN NOTICED NO SIDETONE IN MY HEADSET, WHEN ANNOUNCING MY POS. I CHKED THE RADIO AND NOTICED THE ENTIRE AVIONICS STACK WAS WITHOUT PWR. I CHKED THE GENERATOR SWITCH (ON), AND THE CIRCUIT BREAKERS (ALL IN). BY THIS TIME I WAS ON SHORT FINAL AND DID A 'GUMP CHK' (FUEL PUMP ON, UNDERCARRIAGE DOWN AND LOCKED, MIXTURE RICH, PROP FORWARD). NOT KNOWING THE GEAR WAS NOT DOWN AND LOCKED I EXECUTED A LNDG AND SLID ABOUT 400 FT. NO INJURIES. ACFT DAMAGE MINIMAL. (PROP BENT, ADF ANTENNA BROKE, BELLY RASH.) EVEN AFTER I SLID IN, THE 'DOWN AND GREEN' LIGHT WAS ILLUMINATED! CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: THE RPTR STATED AS OF THIS DATE HE DOES NOT KNOW WHY THE GEAR INDICATED DOWN AND WAS NOT. HE STATED THE COMANCHE HAS A REPUTATION FOR GEAR PROBS. JUST THIS WEEK THE REPAIRS WERE COMMENCED AND AS YET NO EXPLANATION FOR THE ERRONEOUS INDICATION. THIS AIRPLANE IS OWNED BY THE RPTR. THE RPTR HAS SINCE THE RPT GOTTEN HIS PVT LICENSE.

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.

The reporter had a gear up landing with the landing gear indicating in the down position as per the green gear down lights. The reporter lost his radios during the approach to landing.