A C310 pilot, upon lowering the gear, did not receive a green down and locked indication for the rig...

Attributes
ACN	517861
Time
Date	200107
Day	Thu
Local Time Of Day	1801 To 2400
Place
Locale Reference	airport : pwc.airport
State Reference	MN
Altitude	agl single value : 300
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	general aviation : personal
Make Model Name	Cessna 310/T310C
Operating Under FAR Part	Part 91
Flight Phase	descent : approach
Route In Use	approach : visual
Flight Plan	None
Person 1
Affiliation	other
Function	flight crew : single pilot
Qualification	pilot : private pilot : instrument pilot : multi engine
Experience	flight time last 90 days : 35 flight time total : 815 flight time type : 330
ASRS Report	517861
Person 2
Affiliation	other
Function	observation : observer
Events
Anomaly	aircraft equipment problem : critical non adherence : far other anomaly other
Independent Detector	aircraft equipment other aircraft equipment : absense of rt main gear green lt other flight crewa
Resolutory Action	other
Consequence	other
Supplementary
Problem Areas	Aircraft Maintenance Human Performance
Primary Problem	Aircraft

Narrative:

Aircraft was on an IFR flight plan from oma to pwc. Canceled IFR with field in sight for a VFR visual approach. When landing gear was lowered, we did not get a green light indicating the right main gear was down and locked. We used a cell phone to contact relatives at a nearby lake cabin, after we were unable to contact anyone on the ground at pine river. We did a low altitude fly-by with the gear down. Altitude approximately 300 ft AGL over 10 mi lake. Observers on the ground indicated that all 3 wheels were down. The squat switch on the right main gear had been svced recently, and we strongly suspected the problem was in the switch. We returned to pwc and landed without incident. (The switch came on at touchdown.) I telephoned a briefer at princeton, mn, FSS and informed them of the circumstances regarding the cell phone use and low altitude fly-by.

Original NASA ASRS Text

Title: A C310 PLT, UPON LOWERING THE GEAR, DID NOT RECEIVE A GREEN DOWN AND LOCKED INDICATION FOR THE R MAIN GEAR.

Narrative: ACFT WAS ON AN IFR FLT PLAN FROM OMA TO PWC. CANCELED IFR WITH FIELD IN SIGHT FOR A VFR VISUAL APCH. WHEN LNDG GEAR WAS LOWERED, WE DID NOT GET A GREEN LIGHT INDICATING THE R MAIN GEAR WAS DOWN AND LOCKED. WE USED A CELL PHONE TO CONTACT RELATIVES AT A NEARBY LAKE CABIN, AFTER WE WERE UNABLE TO CONTACT ANYONE ON THE GND AT PINE RIVER. WE DID A LOW ALT FLY-BY WITH THE GEAR DOWN. ALT APPROX 300 FT AGL OVER 10 MI LAKE. OBSERVERS ON THE GND INDICATED THAT ALL 3 WHEELS WERE DOWN. THE SQUAT SWITCH ON THE R MAIN GEAR HAD BEEN SVCED RECENTLY, AND WE STRONGLY SUSPECTED THE PROB WAS IN THE SWITCH. WE RETURNED TO PWC AND LANDED WITHOUT INCIDENT. (THE SWITCH CAME ON AT TOUCHDOWN.) I TELEPHONED A BRIEFER AT PRINCETON, MN, FSS AND INFORMED THEM OF THE CIRCUMSTANCES REGARDING THE CELL PHONE USE AND LOW ALT FLY-BY.

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.

A C310 pilot, upon lowering the gear, did not receive a green down and locked indication for the right main gear.