Narrative:
An Antonov 12B, ST-AQQ, sustained substantial damage in a landing accident at Heglig, Sudan. The airplane suffered an undercarriage collapse and damage to the no. 1, 2 and 4 propellers. There were no injuries.
Magal Flight 100 departed Khartoum (KRT), Sudan at 07:38 with 13 tons of cargo on board, bound for Heglig, Sudan.
The airplane touched down on the gravel, 16 meters short of the runway. It struck concrete blocks, runway lights and then bounced. It impacted the runway nose-first. The captain ordered the props to be unlocked so they would go into ground fine pitch. However, the throttle of engine no. 4 was still at 42% with the other engines below 20%.
An asymmetric thrust condition occurred as the no. 4 engine consequently did not go into ground fine pitch. This caused the plane to drift to the left side. It passed over a gravel road, then lost the left main landing gear, turned to left and broke the right hand main landing gear and nose gear before it stopped.
Main Cause:
1- Landing short of the runway beginning.
2- The flight engineer unlocked props I, II, III at throttle position < 20° UPRT and No IV engine at 40° UPRT.
Contributory Cause:
- Unrectification of nose wheel and main landing gear crack as recommended by the manufacturer.
| Status: | Accident investigation report completed and information captured |
| Date: | Monday 4 January 2010 |
| Time: | 09:10 |
| Type: |  Antonov An-12BK |
| Operator: | El Magal Aviation |
| Registration: | ST-AQQ |
| MSN: | 9346504 |
| First flight: | 1969 |
| Total airframe hrs: | 36190 |
| Engines: | 4 Ivchenko AI-20M |
| Crew: | Fatalities: 0 / Occupants: 6 |
| Passengers: | Fatalities: 0 / Occupants: 0 |
| Total: | Fatalities: 0 / Occupants: 6 |
| Aircraft damage: | Damaged beyond repair |
| Location: | Heglig Airport ( Sudan)
|
| Phase: | Landing (LDG) |
| Nature: | Cargo |
| Departure airport: | Khartoum-Civil Airport (KRT/HSSS), Sudan |
| Heglig Airport (HEG/HSHG), Sudan | |
| Flightnumber: | 100 |
An Antonov 12B, ST-AQQ, sustained substantial damage in a landing accident at Heglig, Sudan. The airplane suffered an undercarriage collapse and damage to the no. 1, 2 and 4 propellers. There were no injuries.
Magal Flight 100 departed Khartoum (KRT), Sudan at 07:38 with 13 tons of cargo on board, bound for Heglig, Sudan.
The airplane touched down on the gravel, 16 meters short of the runway. It struck concrete blocks, runway lights and then bounced. It impacted the runway nose-first. The captain ordered the props to be unlocked so they would go into ground fine pitch. However, the throttle of engine no. 4 was still at 42% with the other engines below 20%.
An asymmetric thrust condition occurred as the no. 4 engine consequently did not go into ground fine pitch. This caused the plane to drift to the left side. It passed over a gravel road, then lost the left main landing gear, turned to left and broke the right hand main landing gear and nose gear before it stopped.
Probable Cause:
Main Cause:
1- Landing short of the runway beginning.
2- The flight engineer unlocked props I, II, III at throttle position < 20° UPRT and No IV engine at 40° UPRT.
Contributory Cause:
- Unrectification of nose wheel and main landing gear crack as recommended by the manufacturer.
Classification:
Runway excursion (veer-off)
Follow-up / safety actions
AAICD issued 10 Safety Recommendations
Show all...
Show all...
Photos
Map
This map shows the airport of departure and the intended destination of the flight. The line between the airports does not display the exact flight path.
Distance from Khartoum-Civil Airport to Heglig Airport as the crow flies is 706 km (441 miles).
Distance from Khartoum-Civil Airport to Heglig Airport as the crow flies is 706 km (441 miles).
This information is not presented as the Flight Safety Foundation or the Aviation Safety Network’s opinion as to the cause of the accident. It is preliminary and is based on the facts as they are known at this time.
The Aviation Safety Network is an exclusive service provided by:
Quick Links:
| ASN Home | Send Correction / Feedback |
| FSF Home | Disclaimer | Copyright |
| Contact Us | Privacy Policy |
| Press / Media |
CONNECT WITH US:
©2023 Flight Safety Foundation