Accident Boeing 737-322 (SF) 9S-ASG, Sunday 4 March 2018
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Date:Sunday 4 March 2018
Type:Silhouette image of generic B733 model; specific model in this crash may look slightly different    
Boeing 737-322 (SF)
Owner/operator:Serve Air
Registration: 9S-ASG
MSN: 24378/1704
Year of manufacture:1989
Total airframe hrs:61721 hours
Cycles:36555 flights
Engine model:CFMI CFM56-3C1
Fatalities:Fatalities: 0 / Occupants: 6
Other fatalities:0
Aircraft damage: Substantial, written off
Location:Lubumbashi International Airport (FBM) -   Congo (Democratic Republic)
Phase: Landing
Departure airport:Kinshasa-N'Djili Airport (FIH/FZAA)
Destination airport:Lubumbashi International Airport (FBM/FZQA)
Investigating agency: BPEA
Confidence Rating: Accident investigation report completed and information captured
A Boeing 737-300 cargo plane, operated by Serve Air, suffered a runway excursion and nose gear collapse after landing on runway 07 at Lubumbashi International Airport, D.R. Congo.
The aircraft departed Kinshasa-N'Djili Airport on a cargo flight to Lubumbashi. A training captain was seated on the right and the trainee captain on the left seat. The third pilot had the role of safety pilot. The trainee captain was on his fifth line training flight.
At Lubumbashi, the crew was cleared for an instrument landing procedure for runway 07. In the pre-landing briefing, AUTO BRAKE 2 mode was selected for deceleration of the aircraft. No anomalies or technical malfunctions were reported to ATC.
The weather conditions were good with calm winds. On landing, the aircraft landed in the touchdown zone according to the crew, the rollout on the runway appeared normal, and deceleration was progressive. At about 80 knots, the crew noted that the aircraft was diverging to the left of the runway centreline. The crew immediately switched to manual braking, but to no avail, the aircraft continued the skid until it went off the runway and came to a stop, leaving the right main gear on the runway. The nose landing gear, passing over the less compact shoulder, became bogged down and then broke off. The left main landing gear, with the weight of the aircraft, also dug in so that the left engine touched the ground.
The aircraft sustained substantial damage in the area of the nose landing gear cage (wheel well).

Contributing facts:
(a) Reduction of simulator training hours for economic reasons for someone who has never performed the duties of controlling an aircraft on the ground.
(b) The runway shoulders at Lubumbashi (Luano) do not have the same characteristics with regard to strength (see Annex 14 and Document 9157 Part 3).
In conclusion, the actions taken on the rudder before it became ineffective must have been the cause of the aircraft's deviation from the runway centreline and the loss of control of the aircraft (LOC-G).

Accident investigation:
Investigating agency: BPEA
Report number: BPEA/ACCID 01/2018
Status: Investigation completed
Duration: 1 year and 3 months
Download report: Final report



Revision history:


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