The NSIB recommends a detailed Hawker 900XP engine inspection to identify the root cause of the failure and thrust anomalies observed during the flight.
The Nigerian Safety Investigation Bureau (NSIB) has released a preliminary report on the incident involving a Hawker 900XP aircraft. Flybird Aircraft Management Services Limited operated the aircraft, with nationality and registration marks 5N-KAL. The report highlights the need for a Hawker 900XP engine inspection after the incident.
The incident occurred on December 6, 2024, during the aircraft’s climb out from Nnamdi Azikiwe International Airport (DNAA), Abuja. The flight was en route to Kotoka International Airport (DGAA), Accra, Ghana.
The NSIB recommends a detailed Hawker 900XP engine inspection to identify the root cause of the failure and thrust anomalies observed during the flight. Investigators are also reviewing the engine maintenance records to determine if prior issues or lapses contributed to the incident.
The Director, Public Affairs and Family Assistance, NSIB, Mrs. Bimbo Olawumi Oladeji, revealed these findings in a statement.
Incident Overview
During the climb at flight level 260, the crew heard a loud bang from Engine Number 2, followed by a temperature increase and vibrations. They promptly reduced engine power, declared an emergency, and requested an air return to Abuja. While descending, Engine Number 2 experienced a second temperature spike, and the flight crew later noticed that Engine Number 1 was unresponsive to thrust commands.
Despite these challenges, the aircraft landed safely on Runway 22 at Nnamdi Azikiwe International Airport at 18:16 local time. All four occupants—three crew members and one passenger—disembarked unhurt, and the aircraft sustained no damage. The crew’s response and the aircraft’s structural integrity helped contain the engine failure and prevent further harm.
Emergency Response and Navigational Aids
The Aerodrome Rescue and Fire Fighting Services (ARFFS) stood by with fire-fighting vehicles, equipment, and an ambulance, ensuring a swift response if needed.
The aircraft carries a Solid-State Flight Data Recorder (FDR) and a Solid-State Cockpit Voice Recorder (CVR), which investigators are analyzing.
Navigational aids at Nnamdi Azikiwe International Airport (DNAA) were fully serviceable on the day of the incident. These included:
- “ABC” VOR/DME 116.3 MHz
- “IAB” ILS/DME 109.3 MHz
- “IAC” ILS/DME 111.9 MHz
- MSSI Wind Indicator
- Aerodrome Beacon
- Radar & FPL Monitor
- ALDIS Lamp and AFL Display
Communication Systems
The aircraft maintained effective communication with all Air Traffic Control stations, including Abuja Tower, Abuja Approach, Kano Control, and Lagos Control. The communication equipment at DNAA was fully operational, with the following serviceable frequencies:
- VHF 118.6 MHz Tower Primary Frequency
- VHF 118.6 MHz Tower Secondary Frequency
- VHF 127.9 MHz App/Radar Primary Frequency
- VHF 119.8 MHz App/Radar Secondary Frequency
- VHF 121.9 MHz Ground Frequency
- VHF 127.05 MHz ATIS Frequency
- VHF 121.5 MHz Emergency Frequency
- Frequentis Smartstrip Main & Backup
- Voicecom 1, 2, & 3
- Panasonic Table Phone & Techno Mobile
Ongoing Investigation
The full preliminary report, containing initial findings, is available for download on the NSIB website. The investigation remains in progress, and the final report will provide comprehensive conclusions and safety recommendations.
The NSIB stresses the importance of identifying the root cause of the engine failure and thrust anomalies to prevent similar incidents. The aircraft’s safe landing and the absence of injuries highlight the crew’s effective emergency response and the aircraft’s safety systems.
