| Subject | English | French |
| transp., polit. | downlock mechanism | verrouillage de train sorti |
| transp., mech.eng. | downlock visual indicating | indication de verrouillage optique |
| transp., mech.eng. | emergency main gear downlock cylinder | vérin de secours de verrouillage de contrefiche |
| transp., avia., mech.eng. | landing gear downlock visual check installation | dispositif de contrôle optique du train |
| transp., mech.eng. | landing-gear downlock optical inspection flap | palette de contrôle optique |
| transp., mech.eng. | LG downlock optical inspection flap | palette de contrôle optique |
| transp., avia., mech.eng. | LG downlock visual check installation | dispositif de contrôle optique du train |
| transp., mech.eng. | normal main gear downlock cylinder | vérin normal de verrouillage de contrefiche |
| transp., mech.eng. | undercarriage downlock optical inspection flap | palette de contrôle optique |