Air carrier flight attendant reported the captain notified the flight crew of a diversion to another...

Narrative:

Fwd flight attendant (flight attendant) received message via telecom phone from the captain. We are diverting to another airport due to aircraft landing gear had not retracted after takeoff. We were also notified we would need to fly around to burn off approximately 4;000 pounds of fuel.flight crew and cabin crew continued to communicate on situation and plan of action. Flight crew notified fas and [requested priority ATC handling]. Cabin crew began preparations for landing. Captain made announcements keeping passengers updated and cabin crew did the same. We landed safely at ZZZ airport. Fire department and emergency crew were awaiting us. The aircraft was parked at a hard stand. Passengers deplaned using the air stairs and were transported to the terminal via shuttle buses. The crew secured aircraft; transported to terminal via [ground transportation].

Original NASA ASRS Text

Title: Air Carrier Flight Attendant reported the Captain notified the flight crew of a diversion to another airport because the landing gear did not retract after takeoff.

Narrative: FWD FA (Flight Attendant) received message via telecom phone from the Captain. We are diverting to another airport due to aircraft landing gear had not retracted after takeoff. We were also notified we would need to fly around to burn off approximately 4;000 pounds of fuel.Flight crew and cabin crew continued to communicate on situation and plan of action. Flight crew notified FAs and [requested priority ATC handling]. Cabin crew began preparations for landing. Captain made announcements keeping passengers updated and Cabin crew did the same. We landed safely at ZZZ airport. Fire department and emergency crew were awaiting us. The aircraft was parked at a hard stand. Passengers deplaned using the air stairs and were transported to the terminal via shuttle buses. The crew secured aircraft; transported to terminal via [ground transportation].

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	1717857
Time
Date	202001
Local Time Of Day	1201-1800
Place
Locale Reference	ZZZ.Airport
State Reference	US
Environment
Light	Daylight
Aircraft 1
Make Model Name	Regional Jet 900 (CRJ900)
Operating Under FAR Part	Part 121
Flight Phase	Initial Climb
Flight Plan	IFR
Component
Aircraft Component	Gear Extend/Retract Mechanism
Person 1
Function	Flight Attendant (On Duty)
Events
Anomaly	Aircraft Equipment Problem Critical Inflight Event / Encounter Fuel Issue

Air carrier flight attendant reported the captain notified the flight crew of a diversion to another airport because the landing gear did not retract after takeoff.