This sort of thing had happened with other bomber aircraft when used for carrying pax/freight, as there was only the most elementary 'trimming' carried out and certainly no formal weight and balance checks as with a proper transport aircraft of the day.
Hope this is of interest.
Old Duffer
Thanks OD. Most interesting. Been there -done that. Was teaching a new Sergeant Pilot circuits in a Lincoln at night with the port outer throttled back to simulate an engine out. Downwind, the student requested undercarriage down and one quarter flap. After getting a quarter flap on the flap gauge I selected flap lever to neutral but the bloody lever snapped off at the base below the cockpit floor. The flaps hydraulic valve went to full down and the upwards trim change was positively dangerous.
Speed fell off as nose went up beyond 25 degrees even with full forward elevator. Once we got on final we were OK because power was low. Later I re-read the warning in Pilots Notes Lincoln which stated:
"Mislanding and going around again...it is essential to raise the flap to half down before the undercarriage is selected up ..otherwise an uncontrollable nose up change of trim may be experienced at loadings near the aft CG limit...this is aggravated by the use of full power".
It was fortunate the port outer was only throttled back instead of feathered otherwise with the rapid drop in airspeed caused by the strong nose up pitching moment we might have been in serious trouble.