Aero Inventory, the Aim-quoted wholesaler of aircraft parts, is reviewing the positions of its top three executives after an internal investigation into the incorrect valuation of certain stock items revealed broader problems than originally thought.

Rupert Lewin, chief executive, Hugh Bevan, finance director, and Martin Dodge, chief operating officer, have been “removed” from their jobs but have not left the company. Colin Trupp, previously business development director, is now acting chief executive.