Kaduna - Kaduna

The Boeing 737 completed a flight from Lagos (LOS) through Abuja (ABV) to Kaduna (KAD) and was parked for over an hour. At 14:45 UTC, the Chief Pilot of Chanchangi Airline approached the Air Traffic Controller stating that he would like to fly around the circuit for a training flight. He was told that the visibility was 600 meters which was below the landing minima and was then advised against it. The pilot then suggested that he would carry out a "Rejected Takeoff" training. Additional persons boarded the flight to witness the exercise. At 15:37 UTC the pilot requested a take off clearance which was granted, and was directed to proceed to the holding point of runway 05. The prevailing visibility was 600 meters and the wind was 090 at 10 knots. Four rejected take off training runs were carried out within an interval of twelve minutes. In the conditions at Kaduna, a single exercise of a rejected take off would have required a cooling period of at least ten minutes. At the end of the fourth run, the left main landing gear number 2 brake unit had started to burn. The pilot steered the airplane off the runway into the last taxiway. Fifty meters from the runway 05 threshold the left inner wheel failed and leaving a molten rubber footprint on the taxiway and at the same time the hydraulic fluid of the brake units started to spill tracing an oily track along. Pieces of broken wheel rim were randomly shed for a distance of 150 meters when the rims appeared to undergo a major collapse. The footprint of the two left wheels became more pronounced for a distance of 120 meters when there was a positive turn to the left indicating a total failure in roll from the left wheel assembly. The zigzag motion continued for about 699 meters until the aircraft could no longer be easily moved and the pilot called for the fire trucks. The aircraft burnt to ashes on the spot.

Flight / Schedule

Kaduna - Kaduna

Aircraft

Boeing 737-200

Registration

YU-ANU

MSN

24139

Year of Manufacture

1988

Date

February 23, 1998 at 04:23 PM

Type

CRASH

Flight Type

Training

Flight Phase

Taxiing

Crash Site

Airport (less than 10 km from airport)

Crash Location

Kaduna-Intl Kaduna

Region

Africa • Nigeria

Coordinates

10.6068°, 7.4669°

Crash Cause

Human factor

Narrative Report

On February 23, 1998 at 04:23 PM, Kaduna - Kaduna experienced a crash involving Boeing 737-200, operated by Chanchangi Airlines, with the event recorded near Kaduna-Intl Kaduna.

The flight was categorized as training and the reported phase was taxiing at a airport (less than 10 km from airport) crash site.

24 people were known to be on board, 0 fatalities were recorded, 24 survivors were identified or estimated. This corresponds to an estimated fatality rate of 0.0%.

Crew on board: 3, crew fatalities: 0, passengers on board: 21, passenger fatalities: 0, other fatalities: 0.

The listed crash cause is human factor. The Boeing 737 completed a flight from Lagos (LOS) through Abuja (ABV) to Kaduna (KAD) and was parked for over an hour. At 14:45 UTC, the Chief Pilot of Chanchangi Airline approached the Air Traffic Controller stating that he would like to fly around the circuit for a training flight. He was told that the visibility was 600 meters which was below the landing minima and was then advised against it. The pilot then suggested that he would carry out a "Rejected Takeoff" training. Additional persons boarded the flight to witness the exercise. At 15:37 UTC the pilot requested a take off clearance which was granted, and was directed to proceed to the holding point of runway 05. The prevailing visibility was 600 meters and the wind was 090 at 10 knots. Four rejected take off training runs were carried out within an interval of twelve minutes. In the conditions at Kaduna, a single exercise of a rejected take off would have required a cooling period of at least ten minutes. At the end of the fourth run, the left main landing gear number 2 brake unit had started to burn. The pilot steered the airplane off the runway into the last taxiway. Fifty meters from the runway 05 threshold the left inner wheel failed and leaving a molten rubber footprint on the taxiway and at the same time the hydraulic fluid of the brake units started to spill tracing an oily track along. Pieces of broken wheel rim were randomly shed for a distance of 150 meters when the rims appeared to undergo a major collapse. The footprint of the two left wheels became more pronounced for a distance of 120 meters when there was a positive turn to the left indicating a total failure in roll from the left wheel assembly. The zigzag motion continued for about 699 meters until the aircraft could no longer be easily moved and the pilot called for the fire trucks. The aircraft burnt to ashes on the spot.

Aircraft reference details include registration YU-ANU, MSN 24139, year of manufacture 1988.

Geospatial coordinates for this crash are approximately 10.6068°, 7.4669°.

Fatalities

Total

0

Crew

0

Passengers

0

Other

0

Crash Summary

The Boeing 737 completed a flight from Lagos (LOS) through Abuja (ABV) to Kaduna (KAD) and was parked for over an hour. At 14:45 UTC, the Chief Pilot of Chanchangi Airline approached the Air Traffic Controller stating that he would like to fly around the circuit for a training flight. He was told that the visibility was 600 meters which was below the landing minima and was then advised against it. The pilot then suggested that he would carry out a "Rejected Takeoff" training. Additional persons boarded the flight to witness the exercise. At 15:37 UTC the pilot requested a take off clearance which was granted, and was directed to proceed to the holding point of runway 05. The prevailing visibility was 600 meters and the wind was 090 at 10 knots. Four rejected take off training runs were carried out within an interval of twelve minutes. In the conditions at Kaduna, a single exercise of a rejected take off would have required a cooling period of at least ten minutes. At the end of the fourth run, the left main landing gear number 2 brake unit had started to burn. The pilot steered the airplane off the runway into the last taxiway. Fifty meters from the runway 05 threshold the left inner wheel failed and leaving a molten rubber footprint on the taxiway and at the same time the hydraulic fluid of the brake units started to spill tracing an oily track along. Pieces of broken wheel rim were randomly shed for a distance of 150 meters when the rims appeared to undergo a major collapse. The footprint of the two left wheels became more pronounced for a distance of 120 meters when there was a positive turn to the left indicating a total failure in roll from the left wheel assembly. The zigzag motion continued for about 699 meters until the aircraft could no longer be easily moved and the pilot called for the fire trucks. The aircraft burnt to ashes on the spot.

Cause: Human factor

Occupants & Outcome

Crew On Board

3

Passengers On Board

21

Estimated Survivors

24

Fatality Rate

0.0%

Known people on board: 24

Operational Details

Schedule / Flight

Kaduna - Kaduna

Flight Type

Training

Flight Phase

Taxiing

Crash Site

Airport (less than 10 km from airport)

Region / Country

Africa • Nigeria

Aircraft Details

Aircraft

Boeing 737-200

Registration

YU-ANU

MSN

24139

Year of Manufacture

1988