Emb-145 captain reported a failure of both air conditioning/pressurization pack valves necessitating...

Narrative:

While climbing through FL220; master warning light illuminated and indicated cabin altitude of 10;000 feet then pack 1 and 2 vlv fail illuminated. Executed an immediate decent to arrest the cabin climb. While trying to advise ATC of the change in altitude assignment I was consistently informed by center that he was talking on 4 frequencies and to wait. After 4 attempts to advise I was in an immediate decent; I notified ATC and descended to 13;000 and ran my checklists for the mechanical issues. Once the checks were complete we were able to reset the packs and the cabin returned to normal pressure. We landed at ZZZ with no further incidents. Pack vlv failure. Have ATC not talk on multiple frequencies at once during high traffic times.

Original NASA ASRS Text

Title: EMB-145 captain reported a failure of both air conditioning/pressurization pack valves necessitating an immediate descent until the system was successfully reset.

Narrative: While climbing through FL220; Master Warning light illuminated and indicated cabin altitude of 10;000 feet then Pack 1 and 2 VLV Fail illuminated. Executed an immediate decent to arrest the cabin climb. While trying to advise ATC of the change in altitude assignment I was consistently informed by Center that he was talking on 4 frequencies and to wait. After 4 attempts to advise I was in an immediate decent; I notified ATC and descended to 13;000 and ran my checklists for the mechanical issues. Once the checks were complete we were able to reset the packs and the cabin returned to normal pressure. We landed at ZZZ with no further incidents. Pack VLV Failure. Have ATC not talk on multiple frequencies at once during high traffic times.

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	1552617
Time
Date	201806
Local Time Of Day	1801-2400
Place
Locale Reference	ZZZ.ARTCC
State Reference	US
Aircraft 1
Make Model Name	EMB ERJ 145 ER/LR
Operating Under FAR Part	Part 121
Flight Phase	Climb
Flight Plan	IFR
Component
Aircraft Component	Air Conditioning and Pressurization Pack
Person 1
Function	Captain Pilot Not Flying
Qualification	Flight Crew Air Transport Pilot (ATP)
Events
Anomaly	ATC Issue All Types Aircraft Equipment Problem Critical

Emb-145 captain reported a failure of both air conditioning/pressurization pack valves necessitating an immediate descent until the system was successfully reset.