Narrative:

As this was my first trip to southeast asia using controller pilot datalink communications (cpdlc); I had studied the applicable procedures extensively; and was additionally confident in the experience of my copilot operating in this region. Crossing from the manila flight information region (fir) into the ho chi minh fir over migug and communicating over VHF; the controller asked us to report mesox. We informed him that we were cpdlc; and he instructed us to use cpdlc. My colleague suggested that since we had ads-C; we didn't need to send a position report. I accepted his recommendation; and shortly thereafter we were in radar contact. We proceeded to our destination without incident. In retrospect; I believe that we should have sent that position report; and will use this experience as a lesson for the future.

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Original NASA ASRS Text

Title: Falcon 7X Captain reported he was unsure about reporting requirements in Southeast Asia using Controller Pilot Datalink Communications (CPDLC).

Narrative: As this was my first trip to Southeast Asia using Controller Pilot Datalink Communications (CPDLC); I had studied the applicable procedures extensively; and was additionally confident in the experience of my copilot operating in this region. Crossing from the Manila Flight Information Region (FIR) into the Ho Chi Minh FIR over MIGUG and communicating over VHF; the controller asked us to report MESOX. We informed him that we were CPDLC; and he instructed us to use CPDLC. My colleague suggested that since we had ADS-C; we didn't need to send a position report. I accepted his recommendation; and shortly thereafter we were in radar contact. We proceeded to our destination without incident. In retrospect; I believe that we should have sent that position report; and will use this experience as a lesson for the future.

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.