BE300 captain reported an unsafe right gear indication after two successful touch and goes. During a...

Narrative:

Training flight for approaches with two successful gear extension and retraction sequence's with no incident. On the third visual pattern the right gear down and locked light was not illuminated. We retracted the gear with no problems; attempted to lower the gear again the same right gear light would not illuminate with gear selected down. Retracted the gear and ran the abnormal gear extension checklist then returned to ZZZ. After clearance for the approach; the gear was lowered with the right gear light not illuminated. Landing gear circuit breaker checked and gear down lights push to test checked; again all normal. Asked the tower to confirm what we saw from the cockpit the gear down in the normal position and tower confirmed that both gear appeared to be down. Briefed on a soft touchdown and to exit the runway and shutdown and wait for tow. Also; briefed if the gear collapsed the plan was perform the emergency engine shut down on the ground and egress out of the main cabin door. The gear collapsed after the rollout and the start of taxi off the runway. Performed as briefed the emergency engine shut down and evacuation.

Original NASA ASRS Text

Title: BE300 Captain reported an unsafe right gear indication after two successful touch and goes. During a flyby the Tower indicated that the gear appeared to be down. While taxiing off the runway the right gear collapsed.

Narrative: Training flight for approaches with two successful gear extension and retraction sequence's with no incident. On the third visual pattern the right gear down and locked light was not illuminated. We retracted the gear with no problems; attempted to lower the gear again the same right gear light would not illuminate with gear selected down. Retracted the gear and ran the abnormal gear extension checklist then returned to ZZZ. After clearance for the approach; the gear was lowered with the right gear light not illuminated. Landing gear circuit breaker checked and gear down lights push to test checked; again all normal. Asked the tower to confirm what we saw from the cockpit the gear down in the normal position and tower confirmed that both gear appeared to be down. Briefed on a soft touchdown and to exit the runway and shutdown and wait for tow. Also; briefed if the gear collapsed the plan was perform the emergency engine shut down on the ground and egress out of the main cabin door. The gear collapsed after the rollout and the start of taxi off the runway. Performed as briefed the emergency engine shut down and evacuation.

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.

Attributes
ACN	1415547
Time
Date	201701
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	Super King Air 300
Operating Under FAR Part	Part 91
Flight Phase	Taxi
Flight Plan	IFR
Component
Aircraft Component	Gear Down Lock
Person 1
Function	Captain Instructor
Qualification	Flight Crew Air Transport Pilot (ATP) Flight Crew Flight Engineer Flight Crew Flight Instructor
Experience	Flight Crew Last 90 Days 40 Flight Crew Total 10200 Flight Crew Type 800
Events
Anomaly	Aircraft Equipment Problem Critical Ground Event / Encounter Other / Unknown

BE300 captain reported an unsafe right gear indication after two successful touch and goes. During a flyby the tower indicated that the gear appeared to be down. While taxiing off the runway the right gear collapsed.