Home Aviation & BusinessAIB Issues Safety Recommendation On Emergency Handling By AeroContractors Crew
AIB Issues Safety Recommendation On Emergency Handling By AeroContractors Crew

AIB Issues Safety Recommendation On Emergency Handling By AeroContractors Crew

The Accident Investigation Bureau (AIB) has issued a safety recommendation on handling of emergencies by Aero’s cockpit and cabin crew as part of its occurrence report on the serious incident involving Bombardier DHC-8-Q400 aircraft owned and operated by Aero Contractors Company of Nigeria Limited, with nationality and registration marks 5N-BPU, which occurred at FL240, 80 NM to Lagos On 18th April 2017.
The Safety Recommendation in the report states that “Aero Contractors Company of Nigeria Limited should ensure that Cockpit and Cabin Crew are alive to their responsibilities during emergencies vis-à-vis establishing effective two-way communication.”
The report said the AIB ‘was not officially notified of the serious incident but got to know about it through social media on 19th April, 2017.
On the 18th of April, 2017 at about 17:50 h, a Bombardier DHC-8-Q400 aircraft with registration marks 5N-BPU, operated by Aero Contractors Company of Nigeria Ltd 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.
The investigation identified the 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.”
The second safety recommendation was for the regulatory body. It states that “Nigerian Civil Aviation Authority should ensure that operators utilize the New Oil Analysis Technology made available by Pratt & Whitney Canada in order to identify impending failure of the carbon seals on PW150A engines that are yet to comply with SB 35342R1.”

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