C402 flight crew reported executing a go-around after the left main gear was slow to indicate down a...

Attributes
ACN	1600097
Time
Date	201812
Local Time Of Day	0601-1200
Place
Locale Reference	ZZZ.Airport
State Reference	US
Environment
Flight Conditions	VMC
Aircraft 1
Make Model Name	Cessna 402/402C/B379 Businessliner/Utiliner
Operating Under FAR Part	Part 135
Flight Phase	Initial Approach
Component
Aircraft Component	Landing Gear
Person 1
Function	Pilot Flying Captain
Qualification	Flight Crew Air Transport Pilot (ATP)
Person 2
Function	First Officer Pilot Not Flying
Events
Anomaly	Aircraft Equipment Problem Less Severe

Narrative:

Putting the gear down; the left main light did not illuminate. The decision was made to go around. Eventually after about 15 seconds; the left main gear down and locked light did illuminate. However the decision was already made to not land. Approach gave us a heading of 180 and altitude of 6;000 ft. We cycled the gear one more time and experienced the same. The left main gear did not illuminate down and locked until about 15 seconds after the selection of gear down. The QRH was handed to the first officer; the correct procedure was selected (gear will not extend hydraulically) and run through the process. Since all three gear down and locked lights were on; it was determined through the flow chart that the aircraft was safe to continue to land. The landing was without incident and we were able to taxi to the gate.

Original NASA ASRS Text

Title: C402 flight crew reported executing a go-around after the left main gear was slow to indicate down and locked.

Narrative: Putting the gear down; the left main light did not illuminate. The decision was made to go around. Eventually after about 15 seconds; the left main gear down and locked light did illuminate. However the decision was already made to not land. Approach gave us a heading of 180 and altitude of 6;000 ft. We cycled the gear one more time and experienced the same. The left main gear did not illuminate down and locked until about 15 seconds after the selection of gear down. The QRH was handed to the First Officer; the correct procedure was selected (Gear will not extend hydraulically) and run through the process. Since all three gear down and locked lights were on; it was determined through the flow chart that the aircraft was safe to continue to land. The landing was without incident and we were able to taxi to the gate.

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.