Narrative:

Proceeded to use satcom for position reports with oakland control. Captain initiated position report and sent at N5000 W14000. Satisfactory SELCAL check had been performed on primary/secondary HF frequencys with san francisco co radio. At next position, N5300 W15000 captain sent report, and then queried via HF if reports were being received. San francisco/hnl said had not received and could not contact. I understood them to say a SELCAL code for our flight that was incorrect. Gave both positions. Said out of contact about one hour. I did not check for receipt of satcom reports since wasn't sending. Should have been alert to this. Satcom subsequently inoperative. No apparent conflicts with other traffic.

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Original NASA ASRS Text

Title: A WDB CREW HAD A SATCOM FAILURE OVER THE PACIFIC AND WAS OUT OF COM FOR MORE THAN ONE HR. AN IMPROPER SELCAL SIGN HAD BEEN ENTERED.

Narrative: PROCEEDED TO USE SATCOM FOR POS RPTS WITH OAKLAND CTL. CAPT INITIATED POS RPT AND SENT AT N5000 W14000. SATISFACTORY SELCAL CHK HAD BEEN PERFORMED ON PRIMARY/SECONDARY HF FREQS WITH SAN FRANCISCO CO RADIO. AT NEXT POS, N5300 W15000 CAPT SENT RPT, AND THEN QUERIED VIA HF IF RPTS WERE BEING RECEIVED. SAN FRANCISCO/HNL SAID HAD NOT RECEIVED AND COULD NOT CONTACT. I UNDERSTOOD THEM TO SAY A SELCAL CODE FOR OUR FLT THAT WAS INCORRECT. GAVE BOTH POSITIONS. SAID OUT OF CONTACT ABOUT ONE HR. I DID NOT CHK FOR RECEIPT OF SATCOM RPTS SINCE WASN'T SENDING. SHOULD HAVE BEEN ALERT TO THIS. SATCOM SUBSEQUENTLY INOP. NO APPARENT CONFLICTS WITH OTHER TFC.

Data retrieved from NASA's ASRS site as of July 2007 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.