A lear 35 flight crew experienced landing gear indicator problems on landing at lga.

Attributes
ACN	437760
Time
Date	199905
Day	Thu
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : lga.airport
State Reference	NY
Altitude	msl single value : 1500
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tower : lga.tower
Operator	general aviation : corporate
Make Model Name	Learjet 35
Operating Under FAR Part	Part 91
Flight Phase	descent : approach
Route In Use	approach : visual
Flight Plan	IFR
Person 1
Affiliation	company : corporate
Function	flight crew : first officer
Qualification	pilot : commercial pilot : atp
Experience	flight time last 90 days : 100 flight time total : 7000 flight time type : 350
ASRS Report	437760
Person 2
Affiliation	company : corporate
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Events
Anomaly	aircraft equipment problem : less severe
Independent Detector	other flight crewa other flight crewb
Resolutory Action	controller : provided flight assist flight crew : overcame equipment problem
Supplementary
Problem Areas	Aircraft
Primary Problem	Aircraft

Narrative:

We were cleared for the visual for runway 31, had contacted tower and were downwind. When I called for the gear down, I heard it cycle and the other pilot called out that we only had 2 green gear lights. All 3 red 'gear unsafe' lights were out. As I turned base, he cycled the gear with the same result. We advised the tower we needed to go around, that we had a gear indication problem. They gave us a heading and altitude and vectored us back into sequence for a left downwind. We extended the gear resulting in only 2 green and no red lights. I pulled the power to idle to see if we would get the gear horn. We did not. In a lear 35 you will get this horn if all 3 gear are not locked down. We then asked tower to visually check the gear on the right side to verify it was extended and the landing light was illuminated when we performed a fly-by. They verified it appeared down and the landing lights were both lit. In a lear 35 the landing light will not illuminate unless the gear is locked down. We left the gear down after the fly-by, entered the same downwind and on downwind the light came on and we landed without incident.

Original NASA ASRS Text

Title: A LEAR 35 FLC EXPERIENCED LNDG GEAR INDICATOR PROBS ON LNDG AT LGA.

Narrative: WE WERE CLRED FOR THE VISUAL FOR RWY 31, HAD CONTACTED TWR AND WERE DOWNWIND. WHEN I CALLED FOR THE GEAR DOWN, I HEARD IT CYCLE AND THE OTHER PLT CALLED OUT THAT WE ONLY HAD 2 GREEN GEAR LIGHTS. ALL 3 RED 'GEAR UNSAFE' LIGHTS WERE OUT. AS I TURNED BASE, HE CYCLED THE GEAR WITH THE SAME RESULT. WE ADVISED THE TWR WE NEEDED TO GO AROUND, THAT WE HAD A GEAR INDICATION PROB. THEY GAVE US A HDG AND ALT AND VECTORED US BACK INTO SEQUENCE FOR A L DOWNWIND. WE EXTENDED THE GEAR RESULTING IN ONLY 2 GREEN AND NO RED LIGHTS. I PULLED THE PWR TO IDLE TO SEE IF WE WOULD GET THE GEAR HORN. WE DID NOT. IN A LEAR 35 YOU WILL GET THIS HORN IF ALL 3 GEAR ARE NOT LOCKED DOWN. WE THEN ASKED TWR TO VISUALLY CHK THE GEAR ON THE R SIDE TO VERIFY IT WAS EXTENDED AND THE LNDG LIGHT WAS ILLUMINATED WHEN WE PERFORMED A FLY-BY. THEY VERIFIED IT APPEARED DOWN AND THE LNDG LIGHTS WERE BOTH LIT. IN A LEAR 35 THE LNDG LIGHT WILL NOT ILLUMINATE UNLESS THE GEAR IS LOCKED DOWN. WE LEFT THE GEAR DOWN AFTER THE FLY-BY, ENTERED THE SAME DOWNWIND AND ON DOWNWIND THE LIGHT CAME ON AND WE LANDED WITHOUT INCIDENT.

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.