How stormy weather caused Chanchangi serious incident 11 years ago-AIB

  • Agency releases Turkish Airline incident, others

The Accident Investigation Bureau – Nigeria (AIB-N) today released the cause of Chanchangi Airlines serious incident, which occurred 11 years ago at Kaduna airport with 45 souls onboard.

The agency equally released reports of additional seven aircraft serious incidents and an accident, including Turkish Airlines owned aircraft and issued nine safety recommendations.

Briefing journalists in Abuja on Thursday,  Commissioner, AIB-N, Akin Olateru,  said that the agency was notified of the occurrence late on August 20, 2010, while investigators arrived at the airport the next day.

The report stated that a Boeing 737-200 aircraft with the registration number: 5N-BIF, had operated a series of flights commencing from Lagos between 14:38hr and 18:27hr as NCH198 and landed in Abuja without any incident.


One of Chanchangi’s B737 aircraft

The report said that the same aircraft operated as NCH334 to Kaduna at 20:18hr with a total of 45 persons on board, including nine crew members with fuel endurance of 2:40 minutes, stressing that the flight became unstable during approach to landing on Runway 05.

According to the report, the aircraft had descended in stormy weather, struck and uprooted the Non Directional Beacon (NDB) antenna 50ft (15m) high, some approach lights, and landed 240 meters short of the runway damaging three tyres: one on the nose wheel and one each on the main landing gear without any injury to passengers and crews onboard.

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It added that despite the serious incident, the aircraft continued its movement into the runway, taxied to the ramp and parked, while the three tyres were immediately replaced. This incident occurred at 20:41 h at night time. None of the flight crew and passengers sustained any injury.

The investigation identified the following: AIB-N identified loss of speed, altitude and situational awareness due to poor instruments’ scanning on short finals Runway 05 as the causal factors for the incident.

For contributory factors, Olateru stated that the airplane was flown at a high descent rate (825 fpm) when the aircraft was just 225ft above runway during approach, stressing that the possible increase in crew workload due to thunderstorm activities in the vicinity of the airport also contributed to the incident.

The agency did not however issue any safety recommendation on the serious incident, saying: “In view of the issuance of the Nigeria Civil Aviation Regulation (NCAR) 2009 and the revision in 2015, which addressed the areas of shortcomings identified in this investigation, no safety recommendations are made.”

Also, the report mentioned an incident involving Turkish Airlines’ Airbus 330-343 aircraft with the registration number: TC-LOL, which occurred at the Port Harcourt International Airport, Omagwa, Rivers State with 295 persons, including 11 crew members onboard.

AIB-N’s report said that the incident occurred on December 30, 2019 at about 20:46hrs, after which the aircraft had departed Istanbul Airport, Istanbul; Turkey for Port Harcourt, operating on Instrument Flight Rules (IFR) flight plan.

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It said at about 03:10hrs, the pilot established two-way contact with Port Harcourt Approach reported descending to FL220 on-course NAPVA1, and received weather information with relevant clearances.

It added: “The aircraft touched down with its main landing gear at about 612m from the threshold, right of the runway centreline, crossed the right-side runway strip marking onto the right runway shoulder, impacted and damaged three runway edge lights, and returned to the runway at a distance of about 1,037 m from the threshold.

“The tyre marks further indicated that the aircraft returned to the runway centre-line at about 1,478m from the threshold. The approach was performed at night and the crew reported haze and patches of fog at low level.

“The Port Harcourt International Airport runway was equipped with only edge lights with no centreline and runway touchdown zone lights.”

The causal factor of the incident, according to AIB-N was the extra right aileron and rudder input by the Pilot Flying in the last 100ft, which caused the aircraft to drift right of the runway centreline.

It also mentioned inappropriate rudder application by the flight crew in the last 45ft and the non-adherence to the provisions of the Standard Operating Procedures as contained in the Turkish Airlines Flight Crew Techniques Manual as the major causes of the serious incident.

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Turkish Airline

Other reports are serious incident involving a B737-500 aircraft operated by Air Peace Limited with nationality and registration marks 5N-BRN, which occurred at Port Harcourt Airport On June, 2019 and the serious incident involving HS-125-700A aircraft operated by Associated Aviation Limited with nationality and registration marks 5N-BEX, which occurred at Benin Airport, Edo state, Nigeria on July 10, 2011.

Others are the serious incident involving a Bombardier DHC-8-Q400 aircraft owned and operated by Arik Air with the registration number: 5N-BKX, which occurred en route Kotoka International Airport, Accra, Ghana on March 6, 2018, Med-View Airline at FL320 en route Murtala Muhammed Airport, Lagos On July 23, 2019 and an accident involving a Hawker Siddeley HS-125-800 XP aircraft owned and operated by

SWAT Technology Limited with the registration number: N497AG, which occurred on Runway 21, Port-Harcourt Airport, Omagwa, Rivers State on June 11, 2015.

Besides, it released the report of the serious incident involving B737- 300 aircraft owned and operated by Air Peace Limited with the registration number: 5N-BUK, which occurred at Murtala Muhammed Airport, Lagos on 15th May, 2019.

Wole Shadare