PA-60 pilot reported the left main landing gear did not extend during final approach.

Attributes
ACN	1433624
Time
Date	201703
Local Time Of Day	1201-1800
Place
Locale Reference	ZZZ.Airport
State Reference	US
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Make Model Name	PA-60 600 Aerostar
Operating Under FAR Part	Part 91
Flight Phase	Landing
Flight Plan	IFR
Component
Aircraft Component	Gear Extend/Retract Mechanism
Person 1
Function	Pilot Flying Single Pilot
Qualification	Flight Crew Multiengine Flight Crew Air Transport Pilot (ATP) Flight Crew Instrument
Experience	Flight Crew Last 90 Days 18 Flight Crew Total 2662 Flight Crew Type 11
Events
Anomaly	Aircraft Equipment Problem Critical Ground Event / Encounter Ground Strike - Aircraft Ground Event / Encounter Loss Of Aircraft Control

Narrative:

On approach to ZZZ1 the left main gear light did not illuminate. After perfoming the relevant emergency checklists; I landed at ZZZ with the left main gear retracted. The aircraft is currently being inspected.

Original NASA ASRS Text

Title: PA-60 pilot reported the left main landing gear did not extend during final approach.

Narrative: On approach to ZZZ1 the left main gear light did not illuminate. After perfoming the relevant emergency checklists; I landed at ZZZ with the left main gear retracted. The aircraft is currently being inspected.

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.