| 3400240-1 | Fire Detection Install (Left Engine) | O&N Aircraft Modifications Inc | — | 20 | unknown | PMA |
| 3400240-2 | Fire Detection Install (Right Engine) | O&N Aircraft Modifications Inc | — | 20 | unknown | PMA |
| 3400241-1 | Rotor Burst Shield Install Left Engine | O&N Aircraft Modifications Inc | — | 20 | unknown | PMA |
| 3400241-2 | Rotor Burst Shield Install Right Engine | O&N Aircraft Modifications Inc | — | 20 | unknown | PMA |
| 3400245-1 | Bracket | O&N Aircraft Modifications Inc | — | 20 | unknown | PMA |
| 3400246-1 | Rotor Burst Shield Assy | O&N Aircraft Modifications Inc | — | 20 | unknown | PMA |
| 3400246-12 | Plate | O&N Aircraft Modifications Inc | — | 20 | unknown | PMA |
| 3400246-13 | Bracket (LE) | O&N Aircraft Modifications Inc | — | 20 | unknown | PMA |
| 3400246-14 | Bracket (RE) | O&N Aircraft Modifications Inc | — | 20 | unknown | PMA |
| 3400246-15 | Tube Clamp | O&N Aircraft Modifications Inc | — | 20 | unknown | PMA |
| 3400246-16 | Tube Clamp | O&N Aircraft Modifications Inc | — | 20 | unknown | PMA |
| 3400246-6 | Kevlar Sheet | O&N Aircraft Modifications Inc | — | 20 | unknown | PMA |
| 3400246-7 | Bracket | O&N Aircraft Modifications Inc | — | 20 | unknown | PMA |
| 3400246-9 | Clamp Assy | O&N Aircraft Modifications Inc | — | 33 | Electromechanical | PMA |
| 3400250-1 | Left Wing Aileron Balance Modification Installation | O&N Aircraft Modifications Inc | — | 27 | Flight Controls | PMA |
| 3400250-2 | Right Wing Aileron Balance Modification Installation | O&N Aircraft Modifications Inc | — | 27 | Flight Controls | PMA |
| 3400255-1 | Balance Weight Assy | O&N Aircraft Modifications Inc | — | 20 | unknown | PMA |
| 3400255-5 | Balance Weight | O&N Aircraft Modifications Inc | — | 20 | unknown | PMA |
| 3400255-6 | Balance Weight | O&N Aircraft Modifications Inc | — | 20 | unknown | PMA |
| 3400260-1 | Air Conditioning Installation | O&N Aircraft Modifications Inc | — | 20 | unknown | PMA |
| 3400261-1 | Air Conditioning Electrical System | O&N Aircraft Modifications Inc | — | 20 | unknown | PMA |
| 3400265-1 | Pulley Modification | O&N Aircraft Modifications Inc | — | 20 | unknown | PMA |
| 3400265-11 | Pulley Modification | O&N Aircraft Modifications Inc | — | 20 | unknown | PMA |
| 3400265-12 | Electric Motor Sub Assy | O&N Aircraft Modifications Inc | — | 20 | unknown | PMA |
| 3400265-2 | Plate | O&N Aircraft Modifications Inc | — | 20 | unknown | PMA |
| 3400265-3 | A/C Motor Housing | O&N Aircraft Modifications Inc | — | 20 | unknown | PMA |
| 3400265-8 | Screen Assy | O&N Aircraft Modifications Inc | — | 20 | unknown | PMA |
| 3400266-1 | Condenser Assy | O&N Aircraft Modifications Inc | — | 20 | unknown | PMA |
| 3400266-10 | Hose | O&N Aircraft Modifications Inc | — | 20 | unknown | PMA |
| 3400266-11 | Condenser Tray | O&N Aircraft Modifications Inc | — | 20 | unknown | PMA |
| 3400266-12 | Pad | O&N Aircraft Modifications Inc | — | 20 | unknown | PMA |
| 3400266-13 | Pad | O&N Aircraft Modifications Inc | — | 20 | unknown | PMA |
| 3400266-14 | Plate | O&N Aircraft Modifications Inc | — | 20 | unknown | PMA |
| 3400266-2 | Shroud Assy | O&N Aircraft Modifications Inc | — | 20 | unknown | PMA |
| 3400266-4 | Tube | O&N Aircraft Modifications Inc | — | 20 | unknown | PMA |
| 3400266-6 | Wind Deflector | O&N Aircraft Modifications Inc | — | 20 | unknown | PMA |
| 3400266-9 | Plate | O&N Aircraft Modifications Inc | — | 20 | unknown | PMA |
| 3400267-1 | Duct Assy | O&N Aircraft Modifications Inc | — | 20 | unknown | PMA |
| 3400267-10 | Zee Bracket | O&N Aircraft Modifications Inc | — | 20 | unknown | PMA |
| 3400267-11 | Cross Strip | O&N Aircraft Modifications Inc | — | 20 | unknown | PMA |
| 3400267-13 | Tube | O&N Aircraft Modifications Inc | — | 20 | unknown | PMA |
| 3400267-14 | Clip | O&N Aircraft Modifications Inc | — | 20 | unknown | PMA |
| 3400267-15 | Polyethylene Tube | O&N Aircraft Modifications Inc | — | 20 | unknown | PMA |
| 3400267-16 | Rubber Tube | O&N Aircraft Modifications Inc | — | 20 | unknown | PMA |
| 3400267-17 | Cover Assy | O&N Aircraft Modifications Inc | — | 25 | Interior / Furnishings | PMA |
| 3400267-19 | Bracket (Plate) | O&N Aircraft Modifications Inc | — | 20 | unknown | PMA |
| 3400267-20 | Bracket (Plate) | O&N Aircraft Modifications Inc | — | 20 | unknown | PMA |
| 3400267-21 | Cover | O&N Aircraft Modifications Inc | — | 20 | unknown | PMA |
| 3400268-1 | Hose Assy | O&N Aircraft Modifications Inc | — | 20 | unknown | PMA |
| 3400268-11 | Hose Assy | O&N Aircraft Modifications Inc | — | 20 | unknown | PMA |