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Air carrier flight crew reported being contacted on 121.5 and told to switch to a new frequency by ATC. On the new frequency they were informed that they have been out of contact for 15 minutes and were being intercepted by the military to verify their identity.
| Attributes | |
| ACN | 1382171 |
| Time | |
| Date | 201608 |
| Local Time Of Day | 1801-2400 |
| Place | |
| Locale Reference | LFFF.ARTCC |
| State Reference | FO |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Make Model Name | Commercial Fixed Wing |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Cruise |
| Flight Plan | IFR |
| Person 1 | |
| Function | Relief Pilot Captain |
| Qualification | Flight Crew Multiengine Flight Crew Air Transport Pilot (ATP) |
| Experience | Flight Crew Last 90 Days 20 Flight Crew Total 12000 Flight Crew Type 650 |
| Person 2 | |
| Function | First Officer Pilot Not Flying |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Experience | Flight Crew Last 90 Days 59 Flight Crew Total 5074 Flight Crew Type 300 |
| Events | |
| Anomaly | Deviation - Procedural Published Material / Policy Flight Deck / Cabin / Aircraft Event Other / Unknown Inflight Event / Encounter Other / Unknown |
Narrative:
Tonight captain; first officer and myself were operating a flight to libreville; gabon. Captain was the flying pilot and I was the non-flying pilot. Over disak waypoint we received a frequency change and direct to valku. I checked in with the controller and got a response to our position. Approximately 15 minutes had gone by and we received a call on 121.5 from control. We were then given a new frequency were they said that they had tried to reach us several times without a reply. None of us had heard a call being broadcasted to us. Control then gave us a new frequency so we switched over and checked in. Approximately 5 minutes later control told us that we are being intercepted by the military to verify our aircraft because they lost contact with us for approximately 15 minutes. The military knew before the point of intercept that we were in radio contact again but still wanted to check and verify our aircraft. They intercepted us at FL310 on UN855. Military aircraft came up on our right wing for approximately 2 minutes and then left.
Original NASA ASRS Text
Title: Air carrier flight crew reported being contacted on 121.5 and told to switch to a new frequency by ATC. On the new frequency they were informed that they have been out of contact for 15 minutes and were being intercepted by the military to verify their identity.
Narrative: Tonight Captain; First Officer and myself were operating a flight to Libreville; Gabon. Captain was the flying pilot and I was the non-flying pilot. Over DISAK waypoint we received a frequency change and Direct to VALKU. I checked in with the controller and got a response to our position. Approximately 15 minutes had gone by and we received a call on 121.5 from control. We were then given a new frequency were they said that they had tried to reach us several times without a reply. None of us had heard a call being broadcasted to us. Control then gave us a new frequency so we switched over and checked in. Approximately 5 minutes later control told us that we are being intercepted by the military to verify our aircraft because they lost contact with us for approximately 15 minutes. The military knew before the point of intercept that we were in radio contact again but still wanted to check and verify our aircraft. They intercepted us at FL310 on UN855. Military Aircraft came up on our right wing for approximately 2 minutes and then left.
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.