Status: | Accident investigation report completed and information captured |
Date: | Saturday 15 March 2008 |
Time: | 09:20 |
Type: | Beechcraft 1900D |
Operator: | Wings Aviation |
Registration: | 5N-JAH |
MSN: | UE-322 |
First flight: | 1998 |
Total airframe hrs: | 5578 |
Engines: | 2 Pratt & Whitney Canada PT6A-67D |
Crew: | Fatalities: 2 / Occupants: 2 |
Passengers: | Fatalities: 1 / Occupants: 1 |
Total: | Fatalities: 3 / Occupants: 3 |
Aircraft damage: | Destroyed |
Aircraft fate: | Written off (damaged beyond repair) |
Location: | near Bushi Village, Obanliku ( Nigeria)
|
Crash site elevation: | 975 m (3199 feet) amsl |
Phase: | En route (ENR) |
Nature: | Ferry/positioning |
Departure airport: | Lagos-Murtala Muhammed International Airport (LOS/DNMM), Nigeria |
Destination airport: | Bebi Airstrip (DNBB), Nigeria |
Narrative:The Beech 1900D airplane took off from Lagos at 07.36 en route to Obudu. It was expected to arrive at Bebi Airstrip at approximately 09:21. The aircraft contacted Enugu ATC at 08:56 while descending to FL110. The crew were cleared to descend further down to 5000 feet. It did not arrive at Bebi Airstrip and was declared missing.
On August 30, 2008, hunters found the wreckage in thick rain forest in Obanliku local government area.
Investigation revealed that the Enugu tower controller issued descent instructions to 5, 000 feet AMSL (FL50) outside its control airspace not considering that the aircraft was not flying the filed flight plan route and the minimum safe altitude (MSA) of the area reported by Jeppesen charts as 11,200 feet.
Probable Cause:
Causal Factor:
I. The flight crew conducted an approach into a VFR airfield in an instrument meteorological condition and did not maintain terrain clearance and minimum safe altitude which led to Controlled Flight Into Terrain.
II. The crew did not respond promptly to GPWS warning.
Contributory Factors
1. The flight crew was not familiar with the route in a situation of low clouds, poor visibility and mountainous terrain.
2. The Area Controllers did not detect the estimate as passed by the pilot for positions not in the filed flight plan (LIPAR and LUNDO) and omitting ENUGU.
3. The erroneous co-location of Bebi airstrip and Obudu on the NAMA Chart confused the crew.
Accident investigation:
|
Investigating agency: | AIB Nigeria |
Status: | Investigation completed |
Duration: | 7 years and 2 months | Accident number: | WINGS/2008/03/15/F | Download report: | Final report
|
|
Classification:
VFR flight in IMC
Controlled Flight Into Terrain (CFIT) - Mountain
Sources:
»
SKYbrary » Obudu-bound plane missing (Daily Trust, 16-3-2008)
» Search for missing airplane moves to Cameroon, 4 days after (Daily Sun, 19-3-2008)
» How 'missing' plane was flown out of Nigeria - The Obasanjo connection (Nigerian Tribune, 28-4-2008)
Follow-up / safety actions
AIB Nigeria issued 5 Safety Recommendations
Issued: 21-MAY-2015 | To: NCAA; NAMA | 5N-JAH (1) |
The NCAA and NAMA should ensure that the airstrip is certified and licensed with all available nav-aids made functional and effectively maintained with appropriate charts and correct coordinates. |
Issued: 21-MAY-2015 | To: NCAA | 5N-JAH (2) |
NCAA should ensure that Airstrip operator, services and maintains ILS and VOR/DME where installed and the Authority to provide Approach and Area charts for the Airstrip. |
Issued: 21-MAY-2015 | To: NCAA | 5N-JAH (3) |
All Search and Rescue Aircraft owned by Government agencies such as NEMA, Nigerian Air Force, Border Patrol and the Police should be well equipped with specialized Equipment suitable for efficient conduct of Search and Rescue missions.
These include:
- Rescue Hoist
- Emergency Floatation Kit
- Night-Sun Search light
- Auxiliary Fuel System for Extended Range
- Cargo Hook
- Stretcher System
- HF Radio
- Forward looking Infra-Red System |
Issued: 21-MAY-2015 | To: NCAA | 5N-JAH (4) |
NCAA should ensure compliance of AOC holders with NCAR Part 8.10.1.30 and increase their surveillance. |
Issued: 21-MAY-2015 | To: Wings Aviation | 5N-JAH (5) |
Wings Aviation Limited should enhance Safety in their operations by developing an approved SOP which should include but not limited to:
a) Aircraft dispatch procedure.
b) CRM, Route and Recency checks for the crew in accordance with NCAR. 8.10.1.12 and 8.10.1.30.
c) Operation in Hazardous environment (mountainous).
d) Wings Aviation should ensure that safety critical appointments are not Concentrated in a multiple manner in the hand of a specific or particular Personnel, to encourage check and balance in their operations. |
Show all...
Photos
accident date:
15-03-2008type: Beechcraft 1900D
registration: 5N-JAH
accident date:
15-03-2008type: Beechcraft 1900D
registration: 5N-JAH
accident date:
15-03-2008type: Beechcraft 1900D
registration: 5N-JAH
accident date:
15-03-2008type: Beechcraft 1900D
registration: 5N-JAH
5N-JAH
5N-JAH
accident date:
15-03-2008type: Beechcraft 1900D
registration: N23045
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 Lagos-Murtala Muhammed International Airport to Bebi Airstrip as the crow flies is 659 km (412 miles).
Accident location: Global; accuracy within tens or hundreds of kilometers.
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.