Category Archives: 2000-3000 ft

Drone airpox report involving a Cessna 560XL Citation XLS near Biggin Hill Airport

The UK Airprox Board investigated a drone near-miss reported by a Cessna 560XL Citation XLS near Biggin Hill Airport on 25 June 2016. Separation distance reported as less than 200 feet.

The pilot reported that they were taking radar vectors for weather avoidance and had a high cockpit workload. The PM visually acquired a contact on the nose at a range of about 1/2nm, and estimated it to be below. He made the PF, who was in the right-hand seat, aware and within 2 seconds of the PF acquiring the contact (and 5 seconds from when the PM had first seen it), a drone passed down the right-hand-side of the aircraft, 20ft below and 30ft to the right of the cockpit position, therefore only just beyond the wing-span. The object was a day-glo orange drone with 4 rotors and an under-slung camera housing with a ‘fisheye’ lens bubble, estimated to be about 1 cubic ft. It could have been hovering, although it looked to be slowly drawing to the right.

Reported separation: 20 ft (6 m) vertical / 32 ft (10 m) horizontal.

Aircraft:  Cessna 560XL Citation XLS
Operator:
Registration:
Flight:
Aircraft altitude: 3000 ft
Separation: 32 feet
Source: UKAB


Please note:

Please note that separation distances are solely based on pilot’s judgements and not necessarily accurate since horizontal and vertical separation distances can be hard to judge.

Drone airpox report involving an Avro RJ100 near London City Airport

The UK Airprox Board investigated a drone near-miss reported by an Avro RJ100 near London City Airport on 19 June 2016. Separation distance reported as 20 metres.

The RJ100 pilot reported that he was on final approach into London City Airport runway 27 at 3000 ft on the Localizer 6 nm before touchdown, shortly before intercepting the glideslope, when a flying object (for the FO it looked like a drone, coloured yellow) crossed their path approximately at the same altitude and 20 meters in front the aircraft from the right to the left; the wind was coming from the southwest. The FO spotted the object and advised “Look at that!”, the Captain couldn`t see it because it had already passed. The F/O thought that the object may have hit the left wing area, according to the observed flight path, there was no evidence of damage from the post flight inspection. The approach and landing were uneventful. The situation happened very quickly therefore an avoidance manoeuvre would not have been possible.

Reported separation: 0 ft vertical / 60 ft (20 m) horizontal.

Aircraft:  Avro RJ100
Operator: Swiss International Air Lines
Registration: HB-IYT
Flight: LX456
Aircraft altitude: 3000 ft
Separation: 60 feet
Source: UKAB


Please note:

Please note that separation distances are solely based on pilot’s judgements and not necessarily accurate since horizontal and vertical separation distances can be hard to judge.

DHC-8 in near miss incident with a drone near London City Airport

According to UKAB airprox report, a passenger plane was involved in a near miss with a drone on April 19, 2015 at 14:15 hours local time.

The DHC-8 was being vectored for an ILS approach to runway 09 at London City Airport, U.K. When the aircraft was approximately 3 miles south of London City Airport, and downwind right-hand for runway 09, the pilot reported seeing a drone at approximately 200m range and at the same height of 2000ft. The pilot reported the incident to ATC at the time. After landing the pilot and co-pilot, who had also seen the object, agreed that the miss distance was likely to be 50-150m and that the object was at least 1 metre in size, was black and white in colour and had some letters on it (the second of which may have been an X). A query to London City Tower after landing confirmed that they had had a similar report but not on that day. A passenger on the aircraft also reported seeing a black and white object. A review of the radar did not show any contact in the vicinity.

The U.K. Airprox Board assessed that safety margins had been much reduced below the norm.