The 2 last comments are very true. Possible causes:
- incorrect ZFW entry. It`s a killer.
This has for consequences:
- strongly incorrect TO speeds. Incorrect flaps setting. Inadapted TO power.
What about a badly balanced/loaded plane as well?
Crew fatigue? ( including loadmaster ) Could be the root cause of all above.
Sadly another african-registered aircraft...How well are checked the flight operations there in Zimbabwe? Same standards as in UK or Germany for instance?