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ASN Wikibase Occurrence # 238894
Last updated: 19 November 2021
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Type:Silhouette image of generic DH8D model; specific model in this crash may look slightly different
de Havilland Canada DHC-8-402Q Dash 8
Owner/operator:Aero Contractors
Registration: 5N-BPU
MSN: 4079
Fatalities:Fatalities: 0 / Occupants: 57
Other fatalities:0
Aircraft damage: None
Category:Serious incident
Location:80 NM from Port Harcourt -   Nigeria
Phase: En route
Nature:Passenger - Scheduled
Departure airport:Lagos-Murtala Muhammed International Airport (LOS/DNMM)
Destination airport:DNPC
Investigating agency: AIB Nigeria
The Bombardier DHC-8-Q400 aircraft with registration marks 5N-BPU, operated by Aero Contractors Company of Nigeria as a scheduled flight NIG316, while cruising at FL240, 80 NM inbound Lagos from Port Harcourt, experienced bluish smoke which gradually increased in density within the cabin.
The smoke progressed into the cockpit. The lavatory smoke detector aural warning activated, and the AFT BAGGAGE light illuminated on the Fire Panel but there was no burning smell perceived. At 17:55 h the crew donned Oxygen masks and requested clearance to descend. NIG316 was cleared for immediate descent to 2,200 ft AMSL and requested to contact Lagos Approach. The aircraft contacted Lagos Approach requesting fire assistance on the ground.
The crew followed the FUSELAGE FIRE, SMOKE or FUMES in the QRH and executed “SMOKE” (Warning Light) checklist procedure, the aircraft landed safely on runway 18L at about 18:03 h and taxied to Aero Contractors maintenance facility at the General Aviation Terminal (GAT).
The passengers disembarked normally without injuries.

Causal Factor
Engine oil leaked onto a hot surface of the engine causing fumes which mixed with the engine bleed air supply to the air conditioning system, resulting in smoke in the aircraft cabin, cockpit and lavatory/ cargo compartments.


Accident investigation:
Investigating agency: AIB Nigeria
Status: Investigation completed
Duration: 3 years and 4 months
Download report: Final report
Other occurrences involving this aircraft

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Revision history:

31-Jul-2020 11:51 harro Added

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