Narrative:

After conducting a single engine taxi to the 15R deice pad; communication was established with iceman and we were instructed to proceed to lane two. We then accomplished the pre-deice checklist and informed iceman that we were configured and ready for deicing. Deicing commenced at the nose of the aircraft and moved to the left wing. Next we received the following radio transmission. 'Aircraft X; you have a clean aircraft; type I and iv; contact ground for taxi'. We completed the post de-icing checklist; started the #1 engine. I would estimate that about 3 to 4 minutes elapsed before were able to call ground for taxi instructions and left the de-ice pad. We then taxied to runway 15R and switched to tower frequency. Tower gave us instructions to line up and wait on runway 15R as there was landing traffic on runway 10. We then departed without issue. During the flight we received an ACARS message to contact [company] after arrival. After contacting dispatch we learned of the miscommunication and that we supposedly departed the deice pad prior to completion of the de-ice/anti-ice process. The dispatcher informed us the iceman attempted to contact us; through ground and tower frequencies; however we received no such communication.ensuring proper terminology and communication is used both two and from the de-ice personnel. Also I remember thinking to myself that the de-icing was accomplished pretty fast. However; I thought that they were using two trucks and that accounted for the short amount of time. In the future I will be sure to speak up and ask if I think there is a possible issue during ground de-icing procedures.

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Original NASA ASRS Text

Title: B737 First Officer reported they were advised during their flight that because of a miscommunication they apparently departed the de-ice pad before de-icing was completed.

Narrative: After conducting a single engine taxi to the 15R deice pad; communication was established with Iceman and we were instructed to proceed to lane two. We then accomplished the Pre-Deice Checklist and informed Iceman that we were configured and ready for deicing. Deicing commenced at the nose of the aircraft and moved to the left wing. Next we received the following radio transmission. 'Aircraft X; you have a clean aircraft; type I and IV; contact ground for taxi'. We completed the post de-icing checklist; started the #1 engine. I would estimate that about 3 to 4 minutes elapsed before were able to call Ground for taxi instructions and left the de-ice pad. We then taxied to Runway 15R and switched to Tower frequency. Tower gave us instructions to line up and wait on Runway 15R as there was landing traffic on Runway 10. We then departed without issue. During the flight we received an ACARS message to contact [Company] after arrival. After contacting Dispatch we learned of the miscommunication and that we supposedly departed the deice pad prior to completion of the de-ice/anti-ice process. The dispatcher informed us the Iceman attempted to contact us; through Ground and Tower frequencies; however we received no such communication.Ensuring proper terminology and communication is used both two and from the De-ice Personnel. Also I remember thinking to myself that the de-icing was accomplished pretty fast. However; I thought that they were using two trucks and that accounted for the short amount of time. In the future I will be sure to speak up and ask if I think there is a possible issue during ground de-icing procedures.

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.