Having worked on a Nigerian CAA aircraft it was an eye opener... Indeed several Nigerian aircraft I worked on amazed me, one in for an annual (BAe 125) had the loaner engines recovered, it had them fitted while his went for overhaul, that was the last the owners saw of them for several years and they ended up with a pair of scrappers and the Nigerian owner with a pair of nearly new engines. Took his aircraft sitting engineless and a lot of money to get it back in the air.