EMB505 flight crew reported descending due to lack of radio establishment; engine icing indications ...

Narrative:

During flight; at FL450; we had abnormal engine icing indications in conjunction with moderate turbulence and lost communications. Finding warmer temperatures and smoother air was increasingly becoming a concern. I stayed on Comm1 trying to get a descent clearance but there was no ability to hear each other. My copilot went on Comm2 and [requested priority handling] after multiple attempts of reaching someone on other frequencies. The [priority handling] call was due to the start of a decent with lack of radio establishment; engine icing indications in icing conditions; and moderate turbulence. We started a decent to FL320 because we were needing to get to warmer temperatures; and as we descended it offered better transmission clarity. I flew the plane while copilot got communication and position identification established. Once we were in a safe position; with warmer temperatures and communication established; I went to the previous frequency to get a phone number to call center to review the situation; they gave a number. When we were on the next frequency; center gave us a different number to call once on the ground. We called and spoke to ZZZ center; reviewing what had happened on our end and on theirs. She said they would fill out an in-house document called the 'mandatory occurrence report' and not report anything regarding pilot deviations due to my copilots [priority handling] call. She said it wasn't necessary to take names or certificate numbers because the document was for their training purpose only. She explained she agreed with our decision and did not see any wrong doing on our end. During flight; at FL450; we had abnormal engine icing indications in conjunction with moderate turbulence and lost communications. Finding warmer temperatures and smoother air was increasingly becoming a concern. I stayed on Comm1 trying to get a decent clearance but there was no ability to hear each other. My copilot went on Comm2 and [requested priority handling] after multiple attempts of reaching someone on other frequencies. The [priority handling] call was due to the start of a decent with lack of radio establishment; engine icing indications in icing conditions; and moderate turbulence. We started a decent to FL320 because we were needing to get to warmer temperatures; and as we descended it offered better transmission clarity. I flew the plane while copilot got communication and position identification established. Once we were in a safe position; with warmer temperatures and communication established; I went to the previous frequency to get a phone number to call center to review the situation; they gave a number. When we were on the next frequency; center gave us a different number to call once on the ground. We called and spoke to ZZZ center; reviewing what had happened on our end and on theirs. She said they would fill out an in-house document called the 'mandatory occurrence report' and not report anything regarding pilot deviations due to my copilots [priority handling] call. She said it wasn't necessary to take names or certificate numbers because the document was for their training purpose only. She explained she agreed with our decision and did not see any wrong doing on our end.

Original NASA ASRS Text

Title: EMB505 flight crew reported descending due to lack of radio establishment; engine icing indications in icing conditions; and moderate turbulence.

Narrative: During flight; at FL450; we had abnormal engine icing indications in conjunction with moderate turbulence and lost communications. Finding warmer temperatures and smoother air was increasingly becoming a concern. I stayed on Comm1 trying to get a descent clearance but there was no ability to hear each other. My copilot went on Comm2 and [requested priority handling] after multiple attempts of reaching someone on other frequencies. The [priority handling] call was due to the start of a decent with lack of radio establishment; engine icing indications in icing conditions; and moderate turbulence. We started a decent to FL320 because we were needing to get to warmer temperatures; and as we descended it offered better transmission clarity. I flew the plane while copilot got communication and position identification established. Once we were in a safe position; with warmer temperatures and communication established; I went to the previous frequency to get a phone number to call Center to review the situation; they gave a number. When we were on the next frequency; center gave us a different number to call once on the ground. We called and spoke to ZZZ Center; reviewing what had happened on our end and on theirs. She said they would fill out an in-house document called the 'Mandatory Occurrence Report' and not report anything regarding pilot deviations due to my copilots [priority handling] call. She said it wasn't necessary to take names or certificate numbers because the document was for their training purpose only. She explained she agreed with our decision and did not see any wrong doing on our end. During flight; at FL450; we had abnormal engine icing indications in conjunction with moderate turbulence and lost communications. Finding warmer temperatures and smoother air was increasingly becoming a concern. I stayed on Comm1 trying to get a decent clearance but there was no ability to hear each other. My copilot went on Comm2 and [requested priority handling] after multiple attempts of reaching someone on other frequencies. The [priority handling] call was due to the start of a decent with lack of radio establishment; engine icing indications in icing conditions; and moderate turbulence. We started a decent to FL320 because we were needing to get to warmer temperatures; and as we descended it offered better transmission clarity. I flew the plane while copilot got communication and position identification established. Once we were in a safe position; with warmer temperatures and communication established; I went to the previous frequency to get a phone number to call Center to review the situation; they gave a number. When we were on the next frequency; center gave us a different number to call once on the ground. We called and spoke to ZZZ Center; reviewing what had happened on our end and on theirs. She said they would fill out an in-house document called the 'Mandatory Occurrence Report' and not report anything regarding pilot deviations due to my copilots [priority handling] call. She said it wasn't necessary to take names or certificate numbers because the document was for their training purpose only. She explained she agreed with our decision and did not see any wrong doing on our end.

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	1753188
Time
Date	202007
Local Time Of Day	1201-1800
Place
Locale Reference	ZZZ.ARTCC
State Reference	US
Environment
Flight Conditions	IMC
Light	Daylight
Aircraft 1
Make Model Name	EMB-505 / Phenom 300
Operating Under FAR Part	Part 91
Flight Phase	Cruise
Flight Plan	IFR
Component
Aircraft Component	Ice/Rain Protection System
Person 1
Function	Captain Pilot Flying
Qualification	Flight Crew Multiengine Flight Crew Flight Instructor Flight Crew Instrument Flight Crew Air Transport Pilot (ATP)
Experience	Flight Crew Last 90 Days 54 Flight Crew Total 5284 Flight Crew Type 1865
Person 2
Function	Pilot Not Flying First Officer
Qualification	Flight Crew Instrument Flight Crew Multiengine Flight Crew Air Transport Pilot (ATP)
Events
Anomaly	Aircraft Equipment Problem Less Severe Deviation - Altitude Excursion From Assigned Altitude Deviation - Procedural Clearance Deviation - Procedural Published Material / Policy Inflight Event / Encounter Weather / Turbulence