Ce-525 captain reported observing an aircraft at approximately FL356 in atlantic oceanic airspace th...

Attributes
ACN	1280022
Time
Date	201507
Local Time Of Day	1201-1800
Place
Locale Reference	ZJX.ARTCC
State Reference	FL
Environment
Flight Conditions	Mixed
Light	Daylight
Aircraft 1
Make Model Name	Citationjet (C525/C526) - CJ I / II / III / IV
Operating Under FAR Part	Part 91
Flight Phase	Cruise
Route In Use	Oceanic Airway AR-16
Flight Plan	IFR
Person 1
Function	Captain
Qualification	Flight Crew Air Transport Pilot (ATP) Flight Crew Instrument Flight Crew Multiengine
Experience	Flight Crew Last 90 Days 33 Flight Crew Total 3824 Flight Crew Type 284
Events
Anomaly	ATC Issue All Types Conflict Airborne Conflict Deviation - Procedural Published Material / Policy Deviation - Procedural FAR
Miss Distance	Vertical 600

Narrative:

We had been level at FL350 on ar-16 for several minutes. Approximately halfway between emcee and seelo on ar-16 another jet flying south passed over us at what appeared to be less than 1;000 feet. There were intermittent clouds and then by the visual reference; the jet appeared to be a hawker and approximately 6-800 feet above us opposite direction. We encountered the jet wash from it. Immediately after we contacted ATC asking if they had any aircraft flying in our vicinity. The controller responded: 'no; there are no other aircraft in your vicinity.' we then stated that a jet had just passed over us at what looked like 600 feet or so. ATC stated: 'standby'. When ATC called next; their statement was: 'describe the aircraft?' our reply: 'it appeared to be a hawker or possibly a lear 60.' they replied there were no aircraft that they see flying on the route or near us. We continued the flight as there was no sign of any damage to our jet. However the jet flying south on ar-16 which is noted on the high altitude charts as a north bound route has us questioning how and why this aircraft was flying in this manner. Please review and process when feasible as this is in our opinions an unsafe manner to operate in high altitude oceanic environment.

Original NASA ASRS Text

Title: CE-525 Captain reported observing an aircraft at approximately FL356 in Atlantic Oceanic airspace that was apparently not in contact with ATC.

Narrative: We had been level at FL350 on AR-16 for several minutes. Approximately halfway between EMCEE and SEELO on AR-16 another jet flying south passed over us at what appeared to be less than 1;000 feet. There were intermittent clouds and then by the visual reference; the jet appeared to be a Hawker and approximately 6-800 feet above us opposite direction. We encountered the jet wash from it. Immediately after we contacted ATC asking if they had any aircraft flying in our vicinity. The Controller responded: 'No; there are no other aircraft in your vicinity.' We then stated that a jet had just passed over us at what looked like 600 feet or so. ATC stated: 'Standby'. When ATC called next; their statement was: 'Describe the aircraft?' Our reply: 'It appeared to be a Hawker or possibly a Lear 60.' They replied there were no aircraft that they see flying on the route or near us. We continued the flight as there was no sign of any damage to our jet. However the jet flying south on AR-16 which is noted on the High Altitude charts as a north bound route has us questioning how and why this aircraft was flying in this manner. Please review and process when feasible as this is in our opinions an unsafe manner to operate in high altitude oceanic environment.

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.

Ce-525 captain reported observing an aircraft at approximately FL356 in atlantic oceanic airspace that was apparently not in contact with ATC.