Group /Category 11 Sightings From Aircraft or Spacecraft

Richard Hall:
The sighting of three glowing objects by several airline crews February 24, 1959 is one of the most thoroughly investigated (and, ironically, one of the most controversial) on record. The key witness, Captain Peter W. Killian, was interviewed by NICAP personnel. A detailed investigation report, including weather data, air navigation maps, etc., was submitted to NICAP by the New York City Affiliate. The Akron UFO Research Committee cooperated in the investigation, adding valuable details. Other published references are listed in the Section Notes (43). 

The Air Force later attributed the sighting to a refueling mission involving a tanker and jet bombers flashing brilliant lights. Discrepancies in this explanation are discussed in Section IX. 

Source: UFO EVIDENCE,  Pages 42