Can't speak for Accra ATC or BA procedures but @ my UK airfield the whole process for this type of thing is covered by Departmental Instructions in the Airport Manual.
It takes into account the position & height of the obstruction etc & gives a revised LDA (i.e. full LDA minus strip minus RESA minus length blocked by obstruction). Revised declared distances would be NOTAM'd & put on the ATIS. Refer to CAP168 for the official info.
For those of you who think the runway should be closed, would you still want that if the runway was 3000 meters long, the disabled aircraft was a C150 & the landing aircraft was the same? If you say no, where would you draw the line & stop landings - light twins, B737's , B747's , A380's?
IMHO the whole thing sounds like a non-event
