Disclosed

Glasgow approach airprox (Airprox 2012166)

Date
2 Dec 2012
Place
About 11 nm east of Glasgow airport, Scotland, United Kingdom
Record
Curated case
Assessment
Unexplained
Evidence strength
467 case pages by decade; this one falls in 2010s with 32 othersAll cases

What was reported

At 12:56 UTC on 2 December 2012 both pilots of an Airbus A320 descending through 4,000 ft toward Glasgow saw an object 'loom ahead' at about 100 m and pass some 300 ft directly beneath before they could react; they described it as blue and yellow or silver, with a small frontal area, and 'bigger than a balloon', and rated the collision risk high. The controller had no other traffic and nothing showed on radar, and no surveillance source traced any matching activity. The UK Airprox Board, in report 2012166, could not identify a likely candidate and found insufficient information to determine cause or risk.

What officials concluded

Unresolved

UK Airprox Board report 2012166: insufficient information to determine cause or risk

Strongest ordinary reading

none established

Evidence profile

Sensors1 of 9
  • Yes: Visual
  • No: Infrared
  • No: Radar
  • No: Video
  • No: Photo
  • No: Film
  • No: Audio
  • No: Night vision
  • No: Other sensor
Witnesses2 counted
  • No: Civilian
  • No: Military aircrew
  • No: Military ground
  • Yes: Airline crew
  • No: Sensor operator
  • No: Law enforcement
  • No: Scientist
  • No: Astronaut
  • No: Intelligence official
  • No: Other
Shapenot stated
  • No: Light only
  • No: Orb or sphere
  • No: Disc
  • No: Triangle
  • No: Cylinder
  • No: Cube
  • No: Other shape
Effectsnone reported
  • No: Physiological
  • No: Physical trace
  • No: Electromagnetic
  • No: Sound
  • No: Silent

Outside sources

On the map

55.85° N, 4.10° W, plotted at the site

Show on the map