It's bigger than that - they nearly bought the farm:
From Av Com
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Romeo E.T. » Wed May 13, 2009 6:31 pm I have just heard some further info..........
SCARY STUFF
from some of our technical "boffins" in the office today....results of the DFDR, crew interviews etc.
1)The B747 was very heavy and on rotate one of the engines flamed out, and another "rolled" back to idle RPM.....now on 2 engines only.
2)the thrust reverser light for 2 engines came on, and as per the design features of the B747-436, the leading edge devices retracted.....this is an auto response to prevent F.O.D. to the leading edge devices during reverse thrust operations..... thus even more loss of lift at a very critical phase of flight.
3)thru fast actions the captain was able to restore thrust to the engine that had "rolled back to idle".....but only after leveling off...or even descending doen to 35ft...
35ft 
4)the aircraft slowly accelerated to climb speed with the partially extended leading edge devices and only on 3 engines.
5)fuel dumping took 2hours
6)after landing the crew refused to take the same aircraft out again...and they "paxed" back last night
7)SACAA has impounded the aircraft at ORTIA where the DFDR has been downloaded to annalize the incident