EMB170 captain reports communications failure enroute on all three radios. Comm is established with ...

Narrative:

While enroute to ZZZ lost all 3 comms on a heading 10 degrees to left. As we lost comms; 1 at a time; I briefly heard back direct to ZZZ1 but was unable to verify due to lost communications with ATC. Squawked 7600; and flew expected route of ZZZ1 which was original course. Re established communication with dispatch via ACARS 30 minutes later while on course to ZZZ. They gave us instructions from ATC. Followed those for the next 15 minutes. Then the first officer finally got his side to work on comm 2 only via ZZZ2. My comm 1 never worked again until maintenance reset on ground. Landed uneventfully after reestablishing comm via first officer radio 150 miles from ZZZ.

Original NASA ASRS Text

Title: EMB170 Captain reports communications failure enroute on all three radios. Comm is established with Dispatch via ACARS and ATC instructions are relayed. Direct comm with ATC is eventually established via backup radio.

Narrative: While enroute to ZZZ lost all 3 comms on a heading 10 degrees to left. As we lost comms; 1 at a time; I briefly heard back direct to ZZZ1 but was unable to verify due to lost communications with ATC. Squawked 7600; and flew expected route of ZZZ1 which was original course. Re established communication with dispatch Via ACARS 30 minutes later while on course to ZZZ. They gave us instructions from ATC. Followed those for the next 15 minutes. Then the First Officer finally got his side to work on COMM 2 only via ZZZ2. My comm 1 never worked again until maintenance reset on ground. Landed uneventfully after reestablishing comm via First Officer radio 150 miles from ZZZ.

Data retrieved from NASA's ASRS site as of April 2012 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	860501
Time
Date	200911
Local Time Of Day	1201-1800
Place
Locale Reference	ZZZ.ARTCC
State Reference	US
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Make Model Name	EMB ERJ 170/175 ER&LR
Operating Under FAR Part	Part 121
Flight Phase	Cruise
Flight Plan	IFR
Component
Aircraft Component	Air/Ground Communication
Person 1
Function	Pilot Flying Captain
Qualification	Flight Crew Air Transport Pilot (ATP)
Events
Anomaly	Aircraft Equipment Problem Critical

EMB170 captain reports communications failure enroute on all three radios. Comm is established with dispatch via ACARS and ATC instructions are relayed. Direct comm with ATC is eventually established via backup radio.