UK Airprox Board UK Airprox Board
  • Assessment Summary Sheet for UKAB Meeting on Wednesday 11th December 2019

    Contributory factor assessment for each Airprox can be downloaded here

     

    Total A B C D E
    11 1 3 5 1 1

     

    Airprox Aircraft 1 (Type) Aircraft 2 (Type) Airspace (Class)

    ICAO

    Risk

    2019179 Legacy (Civ Comm) Global Express (Civ Comm) London FIR (A) C
    2019181 Avro RJ (MoD ATEC) Grob Tutor (HQ Air Trg) Boscombe ATZ (G) E
    2019187 B747 (CAT) Unknown (Unknown) London TMA (A) D
    2019190 DA42 & C152 (Civ FW) PA16 (Civ FW) Coventry ATZ (G) C
    2019191 B737 (CAT) PA28 (Civ FW) Cardiff CTR (D) C
    2019192 R44 (Civ Helo) PA28 (Civ FW) Gloucestershire ATZ (G) B
    Recommendation: Gloucester consider reviewing fixed wing and rotary wing circuit separation.
    2019195 PA28(A) (Civ FW) PA28(B) (Civ FW) London FIR (G) C
    2019197 Ventus (Civ Gld) PC12 (Civ FW) London FIR (G) B
    2019198 PA28 (Civ FW) Skyranger Swift (Civ FW) Scottish FIR (G) C
    2019206 C152 (Civ FW) PA28 (Civ FW) Gamston ATZ (G) A
    2019207 A320 (CAT) Saab 340 (CAT) Stansted CTR (D) B

  • Consolidated Drone/Balloon/Model/Unknown Object Report Sheet for UKAB Meeting on 11th December 2019

    Contributory factor assessment for each Airprox can be downloaded here

    [1] Latitude and Longitude are usually only estimates that are based on the reported time of occurrence mapped against any available radar data for the aircraft’s position at that time. Because such reported times may be inaccurate, the associated latitudes and longitudes should therefore not be relied upon as precise locations of the event.


    Total Risk A Risk B Risk C Risk D Risk E
    16 4 5 7 0 0

     

    Airprox

    Number 

    Date

    Time (UTC)                 

    Aircraft

    (Operator)

    Object

    Location[1]

    Description

    Altitude

    Airspace

    (Class)

    Pilot/Controller Report

    Reported Separation

    Reported Risk

    Cause/Risk Statement

    ICAO

    Risk

    2019270

    11 Sep 19

    1750

     

    EC145

    (Civ Hel)

    Drone

    Wakefield

    5342N 00127W

    1300ft

    London FIR

    (G)

    The EC145 pilot reports they were about to enter

    the Leeds Bradford CTR. When they turned SE towards their base. The weather was good, clear visibility with cloud well above them. As they passed Wakefield (N5342.35 W00127.32), directly in their path, travelling towards them was a drone. It was about 50cm in diameter with a clear dome and a yellow/orange main body, with two black thin legs. The left seat called it and the pilot applied collective and flared the aircraft. The drone went directly below the aircraft at less than 3m. He circled the area at a distance and tried to identify the drone with no success. The details were passed to Leeds ATC and the flight was continued without further incident, but

    all crew members were visibly shaken.

    In the Board’s opinion the reported altitude and/or description of the object were sufficient to indicate that it could have been a drone.

     

    Applicable Contributory Factors: 1, 2, 4, 6

     

    Risk: The Board considered that the pilot’s overall account of the incident portrayed a situation where providence had played a major part in the incident and/or a definite risk of collision had existed.

    A
    2019272

    15 Sep 19

    1511

    PA28

    (Civ FW)

    Drone

    South of Gravesend

    5123N 00021E

    2200ft

    London FIR

    (G)

    The PA28 pilot reports that he was flying VMC and looking out for other aircraft when he saw a grey drone with red LEDs heading towards him and he turned right.

     

    Reported Separation: 50ft V/50m H

    Reported Risk of Collision: Medium

    In the Board’s opinion the reported altitude and/or description of the object were sufficient to indicate that it could have been a drone.

     

    Applicable Contributory Factors: 1, 2, 4, 6

     

    Risk: The Board considered that the pilot’s overall account of the incident portrayed a situation where safety had been much reduced below the norm to the extent that safety had not been assured.

    B
    2019276

    16 Sep 19

    1545

    EMB175

    (CAT)

    Unk Obj

    MCT 250 10nm

    5334N 00159W

    3000ft

    Manchester CTR

    (D)

    The EMB175 pilot reports they were on base leg, just prior to being given final vector for the ILS, a small red object was observed directly in front of and below the aircraft. It appeared to be red, with possibly a red beacon, however this could this could have been glare/reflection from the sun. Within 2 seconds the EMB175 had passed over the intruder, with an estimated separation 1000ft, however due to the relative speed of the contact and perspective this could be an over estimation. They reported it to ATC immediately.

     

    Reported Separation: 1000ft V/0nm H

    Reported Risk of Collision: Low

    In the Board’s opinion the reported altitude and/or description of the object were such that they were unable to determine the nature of the unknown object.

     

    Applicable Contributory Factors: 5

     

    Risk: The Board considered that the pilot’s overall account of the incident portrayed a situation where although safety had been reduced, there had been no risk of collision.

    C
    2019277

    13 Sep 19

    1736

    C130

    (HQ Air Ops)

    Unk Obj

    Brize Norton

    5152N 00150W

    3600ft

    London FIR

    G

    The C130 pilot reports that on descent through 4500ft whilst positioning for an approach to Brize Norton, a drone was spotted. It was head-on, within 50ft and passed overhead. It had a bright light on it but was too small to detect the colour. There was no time to take avoiding action.

     

    Reported Separation: 50ft V/ 0m H

    Reported Risk of Collision: High

    In the Board’s opinion the reported altitude and/or description of the object were such that they were unable to determine the nature of the unknown object.

     

    Applicable Contributory Factors: 5

     

    Risk: The Board considered that the pilot’s overall account of the incident portrayed a situation where safety had been much reduced below the norm to the extent that safety had not been assured.

    B
    2019286

    21 Sep 19

    0946

    B777

    (CAT)

    Drone

    Windsor

    5128N 00036W

    1600ft

     

    London CTR

    (D)

    The B777 pilot reports that when descending through 1560ft on finals RW09L, a drone was sighted passing down the left-hand-side about 200-300m away, and approximately 100-200ft lower.  It looked like a large quadcopter with a bright green light on it and something dangling from a pole beneath it.

     

    Reported Separation: 100-200ft V/ 200-300m H

    Reported Risk of Severity: Low

    In the Board’s opinion the reported altitude and/or description of the object were sufficient to indicate that it could have been a drone.

     

    Applicable Contributory Factors: 1, 2, 3, 4, 6

     

    Risk: The Board considered that the pilot’s overall account of the incident portrayed a situation where although safety had been reduced, there had been no risk of collision.

    C
    2019288

    21 Sep 19

    1220

    CS100

    (CAT)

    Drone

    5nm west LHR

    5128N 00037W

    1600ft

    London CTR

    (D)

    The Bombardier CS100 pilot reports that he was on final approach to RW09L, when the Commander spotted a white drone. It was positioned about 200m left of the centreline, about 500ft below the aircraft altitude. The drone was steady moving west at a speed of about 25kts. The incident was reported to ATC

     

    Reported Separation: 500ft V/200m H

    Reported Risk of Collision: Not reported

    In the Board’s opinion the reported altitude and/or description of the object were sufficient to indicate that it could have been a drone.

     

    Applicable Contributory Factors: 1, 2, 3, 4, 6

     

    Risk: The Board considered that the pilot’s overall account of the incident portrayed a situation where although safety had been reduced, there had been no risk of collision.

    C
    2019289

    21 Sep 19

    1240

    A320

    (CAT)

    Drone

    Enfield

    5139N 00005W

    6000ft

    London TMA

    (A)

    The A320 pilot reports that on departure from Heathrow a small dot was seen ahead and on the left-hand-side, initially thought to be a balloon, but it came alongside very rapidly and identified as a small white quadcopter drone, thought to be a DJI Phantom.  Although the distance and height were difficult to judge, it was clearly identifiable as a drone.  It was not possible to avoid due to the late sighting.  ATC were advised.

     

    Reported Separation: 200ft V/ 400m H

    Reported Risk of Collision: High

    In the Board’s opinion the reported altitude and/or description of the object were sufficient to indicate that it could have been a drone.

     

    Applicable Contributory Factors: 1, 2, 3, 4, 6

     

    Risk: The Board considered that the pilot’s overall account of the incident portrayed a situation where although safety had been reduced, there had been no risk of collision.

    C
    2019299

    20 Oct 19

    1423

    PA28

    (Civ FW)

    Drone

    Coventry Airport

    5220N 00127W

    1300ft

    Coventry ATZ

    (G)

    The PA28 pilot reports that he was conducting an instructional circuit sortie.  On the second circuit he was late downwind when the student observed what he initially thought was a bird straight ahead and slightly below.  It very quickly became very close and he was able to identify it as a drone.  It passed under the port wing at the mid-point, heading in the opposite direction. Had the student flown the circuit at the correct circuit altitude (he had allowed the aircraft to climb slightly while completing pre-landing checks) they believed they would have collided with the drone.

     

    Reported Separation: 50ft V/ 10m H

    Reported Risk of Collision: High

    In the Board’s opinion the reported altitude and/or description of the object were sufficient to indicate that it could have been a drone.

     

    Applicable Contributory Factors: 1, 2, 3, 4, 6

     

    Risk: The Board considered that the pilot’s overall account of the incident portrayed a situation where providence had played a major part in the incident and/or a definite risk of collision had existed.

    A
    2019301

    20 Oct 19

    1631

    H145

    (HEMS)

    Drone

    Swansea

    5137N 00356W

    1300ft

    London FIR

    (G)

    The H145 pilot reports that whilst transiting over Swansea at 1300ft, a drone was seen to pass approximately 20m down the right-hand-side of the aircraft at the same altitude.  The drone was a large red quadcopter, estimated to be in the 4-6kg weight range.  The pilot was maintaining a good look-out in excellent visibility and he saw the drone when it started moving relative to the windscreen at approximately 50m in the 1-2 o’clock.  He initiated a left-turn, which hadn’t altered the flight path by the time the drone passed them.  Details were immediately passed to another aircraft operating at Swansea aerodrome.

     

    Reported Separation: 0ft V/ 20m H

    Reported Risk of Collision: High

    In the Board’s opinion the reported altitude and/or description of the object were sufficient to indicate that it could have been a drone.

     

    Applicable Contributory Factors: 1, 2, 4, 6

     

    Risk: The Board considered that the pilot’s overall account of the incident portrayed a situation where providence had played a major part in the incident and/or a definite risk of collision had existed.

    A
    2019305

    28 Oct 19

    1122

    A321

    (CAT)

    Drone

    BIG Hold

    5129N 00000W

    FL080

    London TMA

    (A)

    The A321 pilot reports that a drone was spotted by the FO in the centre of the BIG hold.  It was a consumer style quadcopter drone, red and white with a flashing light on top.  It appeared to be in stable, level flight and did not appear to be moving towards any of the aircraft in the hold.  It was positioned almost directly in the centre of the stack.

     

    Reported Separation: 1000ft V/ <1nm H

    Reported Risk of Collision: Low

    In the Board’s opinion the reported altitude and/or description of the object were sufficient to indicate that it could have been a drone.

     

    Applicable Contributory Factors: 1, 2, 4, 5, 6

     

    Risk: The Board considered that the pilot’s overall account of the incident portrayed a situation where although safety had been reduced, there had been no risk of collision.

    C
    2019306

    29 Oct 19

    1543

    SK92

    (Civ Helo)

    Balloon

    7nm NNE Aberdeen

    5716N 00204W

    3000ft

    Scottish FIR

    (G)

    The SK92 pilot reports the after levelling off at 3000ft he saw a reflecting object on the forward left-hand-side.  It approached rather quickly and passed down the left-hand-side at the same altitude.  The top half appeared to be a glass/silver type balloon, the bottom part was cone-shaped with a small construction hanging from underneath.

     

    Reported Separation: 0ft V/ 50m H

    Reported Risk of Collision: Medium

     

    The Aberdeen controller reports the SK92 was outbound from Aberdeen when the pilot reported having to take avoiding action to avoid an object at 3000ft.  the crew were unsure whether it was a drone or a weather balloon but indicated it looked more like the latter.  Nothing was seen on radar nor were there any prior notifications. 

    In the Board’s opinion the reported altitude or description of the object were sufficient to indicate that it was probably a balloon.

     

    Applicable Contributory Factors: 5

     

    Risk: The Board considered that the pilot’s overall account of the incident portrayed a situation where safety had been much reduced below the norm to the extent that safety had not been assured.

    B
    2019307

    31 Oct 19

    1140

    A319

    (CAT)

    Balloon

    Overhead SUBUK

    5423N 00317W

    FL310

    London UIR

    (C)

    The A319 pilot reports being in the cruise at FL310 when a balloon was spotted in his peripheral vision below and right of his aircraft. The balloon passed quickly below and outside the right wing. The size of the balloon, and therefore the separation, were very hard to determine at altitude due to lack of perspective.

     

    Reported Separation: 500ft V/0nm H

    Reported Risk of Collision: Medium

     

    The Swanwick controller reports the A319 pilot informed him of a balloon passing close underneath the aircraft around the SUBUK area.

    In the Board’s opinion the reported altitude or description of the object were sufficient to indicate that it was probably a balloon.

     

    Applicable Contributory Factors: 5

     

    Risk: The Board considered that the pilot’s overall account of the incident portrayed a situation where although safety had been reduced, there had been no risk of collision.

    C
    2019308

    3 Nov 19

    1400

    Wildcat

    (JHC)

    Drone

    Preston

    5345N 00240W

    2000ft

     

    London FIR

    (G)

    The Wildcat pilot reports that a pair of Wildcat helicopters were on a northbound transit at 900ft and in receipt of a Basic Service from Blackpool. The crewman in the lead aircraft spotted a large black drone with 4 rotors pass down the right-hand-side of the aircraft at a similar height. It was in a nose-down forward flight southbound, the drone rotors were protected by a black cage and no lights were seen. The crew estimated the drone to be 150-200m from the aircraft.

     

    Reported Separation: 0ft V/ 150-200m H

    Reported Risk of Collision: Medium

    In the Board’s opinion the reported altitude and/or description of the object were sufficient to indicate that it could have been a drone.

     

    Applicable Contributory Factors: 1, 2, 4, 6

     

    Risk: The Board considered that the pilot’s overall account of the incident portrayed a situation where safety had been much reduced below the norm to the extent that safety had not been assured.

    B
    2019311

    12 Nov 19

    1308

    A319

    (CAT)

    Unk Obj

    MCR 055R/19nm

    5332N 00150W

    5,500ft

    Manchester TMA

    (A)

    The A319 pilot reports being at 5,500ft on the ILS approach to Manchester runway 23R when a red and white drone was spotted within 1/2nm of his aircraft and approximately 500ft below. No avoiding action was necessary and the sighting was reported to ATC.

     

    Reported Separation: 500ft V/0.5nm H

    Reported Risk of Collision: Medium

    In the Board’s opinion the reported altitude and/or description of the object were such that they were unable to determine the nature of the unknown object.

     

    Applicable Contributory Factors: 5

     

    Risk: The Board considered that the pilot’s overall account of the incident portrayed a situation where although safety had been reduced, there had been no risk of collision.

    C
    2019314

    20 Oct 19

    1600

    A320

    (CAT)

    Unk Obj

    2NM NE OCK

    5122N 00021W

    5,000ft

    London TMA

    (A)

    The A320 pilot reports that at 5,000ft during a SID a drone was sighted to the left of and approximately 150ft below the aircraft.

     

    Reported Separation: 150ft V/200m H

    Reported Risk of Collision: Not reported

     

    The London TCC controller reports the A319 was outbound from Heathrow on the GASGU SID when the pilot reported sighting a drone ‘a couple of hundred metres’ on their left side. The controller requested the aircraft altitude and noted the position, which was then reported to the police.

    In the Board’s opinion the reported altitude and/or description of the object were such that they were unable to determine the nature of the unknown object.

     

    Applicable Contributory Factors: 5

     

    Risk: The Board considered that the pilot’s overall account of the incident portrayed a situation where safety had been much reduced below the norm to the extent that safety had not been assured.

    B
    2019316

    4 Nov 19

    1446

    A321

    (CAT)

    Unk Obj

    LCY 320R/3.5nm

    5133N 00000W

    5,000ft

    London TMA

    (A)

    The A321 pilot reports that the aircraft was descending through 5,000ft and turning onto base leg for RW27L at Heathrow when a drone or balloon at around 4,500-5,000ft on the left side of the aircraft was sighted.

     

    Reported Separation: NR V/50m H

    Reported Risk of Collision: Low

    In the Board’s opinion the reported altitude and/or description of the object were such that they were unable to determine the nature of the unknown object.

     

    Applicable Contributory Factors: 5

     

    Risk: The Board considered that the pilot’s overall account of the incident portrayed a situation where providence had played a major part in the incident and/or a definite risk of collision had existed.

    A