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C172 instructor pilot reported a citation that departed behind them passed directly under their aircraft with about 200 feet vertical separation. Citation pilot's report describes the same incident from his perspective.
| Attributes | |
| ACN | 1371822 |
| Time | |
| Date | 201607 |
| Local Time Of Day | 1201-1800 |
| Place | |
| Locale Reference | PCT.TRACON |
| State Reference | VA |
| Environment | |
| Flight Conditions | VMC |
| Aircraft 1 | |
| Make Model Name | Skyhawk 172/Cutlass 172 |
| Operating Under FAR Part | Part 91 |
| Flight Phase | Cruise |
| Route In Use | None |
| Flight Plan | VFR |
| Aircraft 2 | |
| Make Model Name | Cessna Citation Undifferentiated or Other Model |
| Operating Under FAR Part | Part 91 |
| Flight Phase | Initial Climb |
| Route In Use | SID ARSNL5 |
| Flight Plan | IFR |
| Person 1 | |
| Function | Instructor Pilot Not Flying |
| Qualification | Flight Crew Instrument Flight Crew Flight Instructor Flight Crew Commercial |
| Experience | Flight Crew Last 90 Days 40 Flight Crew Total 350 Flight Crew Type 230 |
| Person 2 | |
| Function | Single Pilot Pilot Flying |
| Qualification | Flight Crew Flight Instructor Flight Crew Multiengine Flight Crew Instrument |
| Experience | Flight Crew Last 90 Days 75 Flight Crew Total 4480 Flight Crew Type 107 |
| Events | |
| Anomaly | Conflict NMAC |
| Miss Distance | Horizontal 0 Vertical 200 |
Narrative:
Departing hef with a student at 2;300 feet MSL heading westbound towards the highway airport when we received a traffic alert from potomac tracon who we were in contact with after departure. Potomac alerted us to a citation that had departed hef IFR and was behind us and about 300 feet below us. He alerted us that the traffic was 'not talking to anybody.' I took the controls from my student; and told potomac TRACON we would look for the traffic. We had the jet on our tis system and received an alert that it was 200 feet below us and less than a mile. After continuing to look for several seconds the jet passed directly under us at what I would estimate to be ~200 feet of vertical separation. After it passed we alerted ATC of the near miss and continued on our lesson.
Original NASA ASRS Text
Title: C172 Instructor Pilot reported a Citation that departed behind them passed directly under their aircraft with about 200 feet vertical separation. Citation Pilot's report describes the same incident from his perspective.
Narrative: Departing HEF with a student at 2;300 feet MSL heading westbound towards the HWY airport when we received a traffic alert from Potomac Tracon who we were in contact with after departure. Potomac alerted us to a Citation that had departed HEF IFR and was behind us and about 300 feet below us. He alerted us that the traffic was 'not talking to anybody.' I took the controls from my student; and told Potomac TRACON we would look for the traffic. We had the jet on our TIS system and received an alert that it was 200 feet below us and less than a mile. After continuing to look for several seconds the jet passed directly under us at what I would estimate to be ~200 feet of vertical separation. After it passed we alerted ATC of the near miss and continued on our lesson.
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.