<< >> NASA ASRS Report 1345100, April 2016

Convair 580 first officer reported only one of the main landing gear dropped when selected down. The crew was able to successfully troubleshoot the problem and make an uneventful landing.

Attributes
ACN	1345100
Time
Date	201604
Local Time Of Day	1801-2400
Place
Locale Reference	ZZZ.Airport
State Reference	US
Environment
Flight Conditions	VMC
Light	Dusk
Aircraft 1
Make Model Name	CV 580
Operating Under FAR Part	Part 121
Flight Phase	Final Approach
Route In Use	Visual Approach
Flight Plan	IFR
Component
Aircraft Component	Main Gear
Person 1
Function	First Officer Pilot Not Flying
Qualification	Flight Crew Multiengine Flight Crew Air Transport Pilot (ATP) Flight Crew Instrument
Experience	Flight Crew Last 90 Days 85 Flight Crew Total 2500 Flight Crew Type 250
Events
Anomaly	Aircraft Equipment Problem Less Severe

Narrative:

Captain called for gear down; upon moving the lever only 2 of the 3 landing gear lights illuminated. We proceeded to execute a fly by to have the tower visually verify all 3 landing gear were down. It appeared that only one of the two main landing gear were down. We then went northeast of the field to troubleshoot the issue and complete the QRH checklists. We successfully managed to get the remaining gear down and executed a second flyby. Landed without incident.

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Original NASA ASRS Text

Title: Convair 580 First Officer reported only one of the main landing gear dropped when selected down. The crew was able to successfully troubleshoot the problem and make an uneventful landing.

Narrative: Captain called for gear down; upon moving the lever only 2 of the 3 landing gear lights illuminated. We proceeded to execute a fly by to have the tower visually verify all 3 landing gear were down. It appeared that only one of the two main landing gear were down. We then went northeast of the field to troubleshoot the issue and complete the QRH checklists. We successfully managed to get the remaining gear down and executed a second flyby. Landed without incident.

Data retrieved from NASA's ASRS site 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.