Pilot of a fairey firefly reported that the main gear collapsed on landing rollout.

Attributes
ACN	1014432
Time
Date	201206
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	Military Trainer
Operating Under FAR Part	Part 91
Flight Phase	Landing
Route In Use	None
Flight Plan	None
Component
Aircraft Component	Main Gear
Person 1
Function	Pilot Flying Single Pilot
Qualification	Flight Crew Flight Engineer Flight Crew Air Transport Pilot (ATP) Flight Crew Instrument Flight Crew Multiengine
Experience	Flight Crew Last 90 Days 215 Flight Crew Total 32400 Flight Crew Type 326
Events
Anomaly	Aircraft Equipment Problem Critical

Narrative:

A normal tail-low wheel landing was made and as the aircraft was rolling out the left main gear began a slow collapse followed by the right main gear. The aircraft departed the right side of the runway. There were no injuries or property damage other than to the aircraft.

Original NASA ASRS Text

Title: Pilot of a Fairey Firefly reported that the main gear collapsed on landing rollout.

Narrative: A normal tail-low wheel landing was made and as the aircraft was rolling out the left main gear began a slow collapse followed by the right main gear. The aircraft departed the right side of the runway. There were no injuries or property damage other than to the aircraft.

Data retrieved from NASA's ASRS site as of July 2013 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.