B737 flight crew and ground personnel reported main landing gear caught fire at gate after taxi-in.

Attributes
ACN	1629372
Time
Date	201903
Local Time Of Day	1201-1800
Place
Locale Reference	ZZZ.Airport
State Reference	US
Environment
Flight Conditions	VMC
Aircraft 1
Make Model Name	B737 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	Parked
Flight Plan	IFR
Person 1
Function	First Officer Pilot Flying
Qualification	Flight Crew Air Transport Pilot (ATP) Flight Crew Instrument Flight Crew Multiengine
Experience	Flight Crew Last 90 Days 119 Flight Crew Total 7609 Flight Crew Type 4777
Person 2
Function	Other / Unknown
Events
Anomaly	Aircraft Equipment Problem Critical Flight Deck / Cabin / Aircraft Event Smoke / Fire / Fumes / Odor Ground Event / Encounter Other / Unknown

Narrative:

Upon completion of flight in ZZZ; we parked the aircraft at [the] gate. After completing the after landing checklist I noticed that a ramp worker was trying to communicate to me through hand signaling. I opened the cockpit window and the ramp worker stated that the right main landing gear was on fire and that the fire fighters were notified and on their way to the gate to assist. I then instructed ramp personnel to retrieve a fire extinguisher to start fighting the fire until the emergency equipment arrived. I then contacted operations to notify them of the situation and they stated that they had already been alerted. While I was communicating with ramp personnel and operations; the captain ordered the passengers to evacuate the aircraft through the main cabin door via the PA. The flight attendants followed up with the evacuation instructions verbally and the evacuation was completed without incident. Emergency personnel extinguished the brake fire.

Original NASA ASRS Text

Title: B737 flight crew and ground personnel reported Main Landing Gear caught fire at gate after taxi-in.

Narrative: Upon completion of flight in ZZZ; we parked the aircraft at [the] gate. After completing the after landing checklist I noticed that a ramp worker was trying to communicate to me through hand signaling. I opened the cockpit window and the ramp worker stated that the right main landing gear was on fire and that the fire fighters were notified and on their way to the gate to assist. I then instructed ramp personnel to retrieve a fire extinguisher to start fighting the fire until the emergency equipment arrived. I then contacted operations to notify them of the situation and they stated that they had already been alerted. While I was communicating with ramp personnel and operations; the Captain ordered the passengers to evacuate the aircraft through the main cabin door via the PA. The flight attendants followed up with the evacuation instructions verbally and the evacuation was completed without incident. Emergency personnel extinguished the brake fire.

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.