plane crash in Lagos Nigeria
Sad thing.
Looking at some basic metrics.
Apparantly they reported technical problems 11nm before threshold. Looking at a map of the region that would put them roughly over the shoreline if approaching Runway 18 straight in when things unfolded. At that time they would have roughly been at 3500ft.
If the reports are correct they crashed 1nm short of the VOR which itself is ~3/4 nm from the runway threshold. So they probably roughly dropped 3500ft in 8-9nm.
That would correspond to a Glide ratio of 15-16:1
Optimum L/D and thus glide ratio of an MD80 should be somewhere around 12:1.
This would indicate that the power loss was possibly not complete at least at the beginning, as the config might not have been fully clean and a L/D of 15 would be asking too much of an MD80 anyway. Looking at the map reaching the VOR and the grass area behind it would have been their only chance of not crashing into buildings once past 4-5nm of the shoreline.
Stuck between a rock and a hard place comes to mind...
If reports are correct it is sad they came 1nm short.
Looking at some basic metrics.
Apparantly they reported technical problems 11nm before threshold. Looking at a map of the region that would put them roughly over the shoreline if approaching Runway 18 straight in when things unfolded. At that time they would have roughly been at 3500ft.
If the reports are correct they crashed 1nm short of the VOR which itself is ~3/4 nm from the runway threshold. So they probably roughly dropped 3500ft in 8-9nm.
That would correspond to a Glide ratio of 15-16:1
Optimum L/D and thus glide ratio of an MD80 should be somewhere around 12:1.
This would indicate that the power loss was possibly not complete at least at the beginning, as the config might not have been fully clean and a L/D of 15 would be asking too much of an MD80 anyway. Looking at the map reaching the VOR and the grass area behind it would have been their only chance of not crashing into buildings once past 4-5nm of the shoreline.
Stuck between a rock and a hard place comes to mind...
If reports are correct it is sad they came 1nm short.
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Apparently, the aircraft were formally used by Alaska Airlines.
Minor incident occurred on the August 20th 2006 and is listed in NTSB records as incident LAX06IA301.
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Henra, if approaching the airport over the shoreline from the South, you tend to be about 14 miles from the airport but that then means an approach to runway 36R/L which isn't allowed.
Take offs can be made in a northerly direction if traffic permits it but approaches are always from the North.
Oba1kanobe, LAG to 18L is 6.7miles
Take offs can be made in a northerly direction if traffic permits it but approaches are always from the North.
Oba1kanobe, LAG to 18L is 6.7miles
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@ lomeopaso...unfortunate but true...
After Plane Crash Rescuers In Detroit Find Job Doesn't End - NYTimes.com
After Plane Crash Rescuers In Detroit Find Job Doesn't End - NYTimes.com
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"Dana Air had 4 MD-83: the 5N-RAM (which crashed), 5N-JAI, 5N-SRI adn the 5N-SAI."
Thanks for that information. Seems to be an extremely religious owner registering all the aircraft with Holy names!!!
Sad but it seems DANA is but one subsidiary of a large company run by family with little or no experience in this field. With all the feedback coming in would not be surprised if cut corners and half ass work to save a few $$ comes back as the cause.
Thanks for that information. Seems to be an extremely religious owner registering all the aircraft with Holy names!!!
Sad but it seems DANA is but one subsidiary of a large company run by family with little or no experience in this field. With all the feedback coming in would not be surprised if cut corners and half ass work to save a few $$ comes back as the cause.
Looking at a map of the region that would put them roughly over the shoreline if approaching Runway 18 straight in when things unfolded.
An approach to RWY18 would be from the North of the field - the coast is to the South (well it was the last time I flew there!)
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Not to interrupt the old back-and-forth regarding the pedigree of manned flight, but it still strikes this uninformed observer as rather a lot of post-crash fire for an aircraft completely out of fuel.
For what little it's worth as one who briefly plied our trade in the skies of Africa, I wish God bless to all involved. A shame this board is incapable of having an honest discussion of the circumstances without the usual locker room talk coming to the fore.
For what little it's worth as one who briefly plied our trade in the skies of Africa, I wish God bless to all involved. A shame this board is incapable of having an honest discussion of the circumstances without the usual locker room talk coming to the fore.
Last edited by thepotato232; 5th Jun 2012 at 07:19.
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The first neandrathol to hurl himself over a cliff would probably stake claim to the first uncontrolled flight, controlled flight is kind of a requirement.
Lots of fire after crashing into structures will happen fuel or no fuel. They didn't crash in a field. Plenty of stuff which will burn in a couple of buildings. Fuel contamination or starvation seems a logical cause if indeed it was a double engine failure.
Lots of fire after crashing into structures will happen fuel or no fuel. They didn't crash in a field. Plenty of stuff which will burn in a couple of buildings. Fuel contamination or starvation seems a logical cause if indeed it was a double engine failure.
Last edited by drive73; 5th Jun 2012 at 07:46.
According to the Dana Air web-site, in addition to the 2 pilots & 4 cabin crew, this flight also carried a flight engineer. Would there be any specific reason for an MD80 to have a flight engineer on board?
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Dana Air is owned by an Indian Company with a reasonable track record.
No mention of the nationality of the Skipper... though the F/O was Indian, and the Flight Mechanic was Indonesian.
Full read on the story from the Times of India.
Nigeria jet’s engines failed; toll 193 - The Times of India
No mention of the nationality of the Skipper... though the F/O was Indian, and the Flight Mechanic was Indonesian.
Full read on the story from the Times of India.
Nigeria jet’s engines failed; toll 193 - The Times of India
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Onlookers discover a destroyed landing gear from the MD-83. It was still warm to the touch, according to the photographer. (AP).
Onlookers watch as a crane lifts the now-separated tail from the impact crater. (Reuters).
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Both recorders found, according to CNN...
Vertical stabilizers are in a "nose up" position. Is it usual that control surfaces keep their last position after the impact?
I can imagine there will be "Terrain ahead - PULL UP" sound recorded on CVR and I wonder if on the photo we are witnessing the result of desperate last effort to save the day?
Edit: Ooops, horizontal stabilizer is meant of course...
I can imagine there will be "Terrain ahead - PULL UP" sound recorded on CVR and I wonder if on the photo we are witnessing the result of desperate last effort to save the day?
Edit: Ooops, horizontal stabilizer is meant of course...
Last edited by Pali; 5th Jun 2012 at 20:12. Reason: Wrong word used
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Dana Air licence suspended
"Their operational licence has been suspended until we carry out their recertification," spokesman Sam Adurogboye told the BBC.
BBC News - Lagos plane crash: Nigeria suspends Dana Air licence
BBC News - Lagos plane crash: Nigeria suspends Dana Air licence
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but it still strikes this uninformed observer as rather a lot of post-crash fire for an aircraft completely out of fuel.