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Assessment Summary Sheet

Contributory factor assessment for each assessed Airprox can be downloaded.

Number of Airprox reports assessed, and their ICAO Risk rating
Total Risk A Risk B Risk C Risk D Risk E
21 2 2 12 0 5
Assessed Airprox reports
Airprox Aircraft 1 (Type) Aircraft 2 (Type) Airspace (Class) ICAO Risk
2019231 DHC6 (Civ Comm) PA28 (Civ FW) Lands End ATZ (G) E
2019233 Tutor (HQ Air Trg) PA28 (Civ FW) Woodvale ATZ (G) C
2019238 Typhoon (A) (HQ Air Ops) Typhoon (B) (HQ Air Ops) London FIR (G) C
Recommendation: The MAA ensures that military operators fully understand the definition and application of the term ‘MARSA’.
2019241 Tutor (HQ Air Trg) Sigma 10 paraglider (Civ Gld) London FIR (G) C
2019242 Chinook (HQ JHC) Glider (Unknown) London FIR (G) C
2019243 Juno (HQ Air Trg) PA28 (Civ FW) London FIR (G) C
2019245 P68 (Civ Comm) C172 (Civ FW) London FIR (G) C
2019246 P68 (Civ Comm) C172 (Civ FW) Cambridge ATZ (G) C
2019248 P68 (Civ Comm) PA28 (Civ FW) London FIR (G) C
2019252 BE20 (Civ Comm) AA5 (Civ FW) London FIR (G) E
2019253 C42 (Civ FW) AW109 (Civ Helo) London FIR (G) A
2019254 PA25/PW-6 (Civ FW) Light aircraft (Unknown) London FIR (G) B
2019255 C152 (Civ FW) RV6 (Civ FW) London FIR (G) C
2019256 DR400 (Civ FW) Enstrom 280 (Civ Helo) Enstone ATZ (G) A
2019257 DA42 (Civ FW) C414 (Civ FW) London FIR (G) E
Recommendation: Gloucester to consider applying for an SSR transponder conspicuity code.
2019263 Ventus glider (Civ Gld) Rockwell Commander 112 (Civ FW) London FIR (G) C
2019264 Cabri G2 (Civ Helo) Decathlon (Civ FW) Goodwood ATZ (G) E
Recommendation: Goodwood to review fixed-wing and rotary-wing circuit deconfliction.
2019265 EC175 (Civ Comm) A109 (Civ Helo) Aberdeen CTR (D) E
2019269 Merlin (RN) Slingsby Firefly (Civ FW) London FIR (G) C
2019273 AW139 (Civ Helo) Paramotor (Civ Para) London FIR (G) B
2019278 Juno (A) (HQ Air Trg) Juno (B) (HQ Air Trg) London FIR (G) C

 

Consolidated Drone/Balloon/Model/Unknown Object Summary Sheet

Contributory factor assessment for each Drone/Balloon/Model/Unknown Object Airprox can be downloaded.

Number of Drone/Balloon/Model/Unknown Object reports, and their ICAO Risk rating
Total Risk A Risk B Risk C Risk D Risk E
2 0 1 1 0 0
Airprox Number Date

Time (UTC)
Aircraft

(Operator)
Object Location [1]

Description/

Altitude
Airspace

(Class)
Pilot/Controller Report

Reported Separation

Reported Risk
Comments/ Risk Statement ICAO Risk
2020004

12 Jan 20

1214

B787

(CAT)

Drone

5121N 00013W

5nm W BIG VOR

6000ft

London TMA

(A)

The B787 pilot reports that while being vectored downwind left-hand for LHR and in level flight, the Captain’s attention was suddenly drawn to a black object below and to the left of the aircraft, a few hundred metres ahead. The object was very visible because it was against the white cloud below it. No avoiding action was required because it was obvious the object would pass below and down the left-hand side of the aircraft. Initially the captain thought it might be a balloon but as the object passed abeam the aircraft it was obvious it was a large black drone.

 

Reported Separation: 200ft V/ 100m H

Reported Risk of Collision: None

 

A NATS Safety Investigation found that at 1214z the B787 pilot reported the large drone had passed down the left-hand side about 100ft below. The controller acknowledged the report and advised that nothing was seen on radar in his vicinity. Information relating to the drone was passed to subsequent arrivals. Analysis of the radar by safety investigators confirmed that there were no associated primary or secondary contacts visible on the radar at the time of the event.

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: 1,2,3,4,7

 

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
2020007

19 Jan 20

1404

B737

(CAT)

Drone

5232N 00144W

5nm north of BHX

3500ft

Birmingham CTR

(D)

The B737 pilot reports that, during the first turn of the ADMEX 1M SID from BHX, at approximately 3000ft QNH, the First Officer (PF) sighted and alerted the Captain to the presence of a drone at the same level, moving from nose to tail on the port side of the aircraft. The drone was black and possibly silver, with 4 rotors, and was approximately the size of a wheelie-bin lid. The drone remained unsighted by the Captain. The incident was immediately reported to ATC and the flight continued uneventfully with no indications of damage to the aircraft.

 

Reported Separation: 0ft V/50-100m 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: 1,2,3,4,6

 

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

[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.

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