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A B777-200 captain related an extended loss of communications on a polar route flight when the HF radios failed.
| Attributes | |
| ACN | 900166 |
| Time | |
| Date | 201007 |
| Local Time Of Day | 1201-1800 |
| Place | |
| Locale Reference | CZEG.ARTCC |
| State Reference | AB |
| Aircraft 1 | |
| Make Model Name | B777-200 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Cruise |
| Flight Plan | IFR |
| Component | |
| Aircraft Component | HF SSB |
| Person 1 | |
| Function | Pilot Not Flying Captain |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Experience | Flight Crew Last 90 Days 30 Flight Crew Total 12000 Flight Crew Type 2000 |
| Events | |
| Anomaly | Aircraft Equipment Problem Less Severe |
Narrative:
After passing 80n100w on our polar flight both HF radios failed. We were unable to contact edmonton; anchorage or magadan via cpdlc because we were too far north for satellite communications. This prevented us from talking with anchorage center while we were in their airspace. We were able to relay our position to magadan via an air carrier flight which was approximately 10 minutes ahead of us. We were also able to coordinate our climb to a meters altitude with their assistance as well. After passing south of 83 degrees north in russian airspace we were able to contact dispatch via ACARS. Dispatch told us that magadan had lost cpdlc connectivity. We used the satellite phone to call magadan. VHF communications with magadan was reestablished and the remainder of the flight proceeded without incident.
Original NASA ASRS Text
Title: A B777-200 Captain related an extended loss of communications on a Polar route flight when the HF radios failed.
Narrative: After passing 80N100W on our Polar flight both HF radios failed. We were unable to contact Edmonton; Anchorage or Magadan via CPDLC because we were too far north for satellite communications. This prevented us from talking with Anchorage Center while we were in their airspace. We were able to relay our position to Magadan via an air carrier flight which was approximately 10 minutes ahead of us. We were also able to coordinate our climb to a meters altitude with their assistance as well. After passing south of 83 degrees north in Russian airspace we were able to contact dispatch via ACARS. Dispatch told us that Magadan had lost CPDLC connectivity. We used the satellite phone to call Magadan. VHF communications with Magadan was reestablished and the remainder of the flight proceeded without incident.
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.