A321 flight crew reported an ECAM indication of a thrust reverser being pressurized.

Narrative:

ECAM eng 1 rev pressurized. Complied with ECAM. Requested lower altitude and priority handling. Determined based on our position and drift down QRH chart that we would be above terrain. We also verified this by leveling at FL190 and selection 280 kts. We then referenced the QRH; briefed the flight attendants; and proceeded directly to ZZZ. We requested xxl and emergency equipment. Captain performed the landing. Upon exiting the runway at xy the crew noticed brake temps in excess of 500c. We then requested to continue north as ATC instruction were south on Z. This was to avoid more braking and downhill taxi. We then came to a slow rolling stop with minimal breaking on taxiway ax short of xxr. At that point left side brakes were around 800c and right side 700c. Crew used right brake only in an attempt to get the left cooling as soon as possible. Briefed the flight attendant and passengers that it would be a little while before we could continue and started coordinating with operations and maintenance.

Original NASA ASRS Text

Title: A321 flight crew reported an ECAM indication of a thrust reverser being pressurized.

Narrative: ECAM eng 1 rev pressurized. Complied with ECAM. Requested lower altitude and priority handling. Determined based on our position and drift down QRH chart that we would be above terrain. We also verified this by leveling at FL190 and selection 280 kts. We then referenced the QRH; briefed the flight attendants; and proceeded directly to ZZZ. We requested XXL and emergency equipment. Captain performed the landing. Upon exiting the runway at XY the crew noticed brake temps in excess of 500c. We then requested to continue north as ATC instruction were south on Z. This was to avoid more braking and downhill taxi. We then came to a slow rolling stop with minimal breaking on taxiway AX short of XXR. At that point left side brakes were around 800c and right side 700c. Crew used right brake only in an attempt to get the left cooling as soon as possible. Briefed the FA and passengers that it would be a little while before we could continue and started coordinating with operations and maintenance.

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	1702989
Time
Date	201911
Local Time Of Day	1201-1800
Place
Locale Reference	ZZZ.ARTCC
State Reference	US
Environment
Flight Conditions	VMC
Aircraft 1
Make Model Name	A321
Operating Under FAR Part	Part 121
Flight Phase	Cruise
Flight Plan	IFR
Component
Aircraft Component	Turbine Engine Thrust Reverser
Person 1
Function	Captain Pilot Not Flying
Qualification	Flight Crew Air Transport Pilot (ATP)
Person 2
Function	First Officer Pilot Flying
Qualification	Flight Crew Air Transport Pilot (ATP)
Events
Anomaly	Aircraft Equipment Problem Critical