ADC Airlines Flight 086

[1] Investigators determined that the primary cause of the accident was due to air traffic control error, the pilot's decision to continue his turn to a certain heading and his erroneous maneuver in evading from an incoming traffic, which ultimately led to the loss of control of the aircraft.[6][7] Among the passengers were renowned Nigerian political scientist Professor Claude Ake[8] and F. I Ajumogobia, former Chief of Missions at UNESCO.During its descent to 16,000 feet (4,900 m), the ATC at Lagos then asked the crew to fly at a heading of 320 and to maintain the flight at FL50.The Lagos Air Traffic Controller erroneously thought that he had earlier cleared Flight 086 to descend to 10,000 feet (3,000 m) and that it was below the Triax aircraft.The aircraft appeared to be recovering as the vertical acceleration was reduced to 2.10 G when it crashed into Lagos Lagoon in inverted condition, at a speed of more than 490 knots (560 mph; 910 km/h), killing all 144 people on board.[3][1]: 17 Initially, there were widespread fear of sabotage as one of the victims was Professor Claude Ake, a prominent critic of Sani Abacha, the then-military junta leader in Nigeria."[1] The pilot was also found to be at fault for proceeding on a heading of 330 and the risky maneuver to avoid a collision with the Triax plane.[11] On 7 November 2021, 25 years after the crash, a memorial event was held in Ejirin by families and friends of the victims and former employees of ADC Airlines.
Trans World AirlinesLagos LagoonLagos StateBoeing 727ADC AirlinesRegistrationPort Harcourt AirportPort HarcourtLagos AirportBoeing 727-200mid-air collisioninvertedlagoonair traffic controlBoeing 727-231Associated PressForeign Office of theBritish GovernmentBritonspolitical scientistClaude AkeUNESCOfifth-largest citySani Abachathen-military junta leader in NigeriaMinister of AviationEastern Air Lines Flight 663Air Caribbean Flight 309Accident Investigation BureauThe New York TimesVanguardKano Airport BOAC Argonaut crashNigeria Airways Flight 925Kano Nigeria Airways Boeing 707 crashNigerian Air Force C-130 crashNigeria Airways Flight 9805Lagos Harka Air Services Tu-134 crashNigeria Airways Flight 357EAS Airlines Flight 4226Bellview Airlines Flight 210Sosoliso Airlines Flight 1145ADC Airlines Flight 053Dana Air Flight 0992Associated Aviation Flight 361Aviation accidents and incidentsAir Africa crashLAC Colombia Flight 028Birgenair Flight 301Faucett Perú Flight 251USAF CT-43 crashFormosa Airlines Flight 7613ValuJet Flight 592Eastwind Airlines Flight 517Garuda Indonesia Flight 865Delta Air Lines Flight 1288Belgian Air Force Hercules crashTWA Flight 800Airstan incidentSpair Airlines Flight 3601Vnukovo Airlines Flight 2801Hemus Air Flight 7081FedEx Express Flight 1406Texel Douglas DC-3 crashAeroperú Flight 603Westendorff UFO sightingDelta Air Lines Flight 554Millon Air Flight 406TAM Transportes Aéreos Regionais Flight 402Charkhi Dadri mid-air collisionQuincy Airport disasterEthiopian Airlines Flight 961Abakan Ilyushin Il-76 crashDirgantara Air Service Flight 5940Airborne Express Flight 827New Hampshire Learjet crash