| Subject | English | Spanish |
| med. | faulty action | acto fallido |
| tech. | faulty adjustment | regulación defectuosa (incorrecta) |
| tech. | faulty adjustment | ajuste defectuosa (incorrecta) |
| mil. | faulty ammunition | munición defectuosa |
| engin. | faulty carburation | carburación incorrecta |
| engin. | faulty carburation | carburación defectuosa |
| el. | faulty channel | canal averiado |
| agric., industr. | faulty cigarette | cigarrillo defectuoso |
| gen. | faulty cladding | vaina defectuosa |
| gen. | faulty cladding | revestimiento defectuoso |
| radio | faulty convergence | defecto de convergencia |
| radio | faulty convergence | convergencia defectuosa |
| coal. | faulty detonator | cebo fallado |
| food.serv. | faulty diet | régimen alimenticio deficiente |
| agric. | faulty flow | dosificación defectuosa |
| agric. | faulty hoof | defecto del casco |
| transp., mech.eng. | faulty joint | junta defectuosa |
| commun. | faulty link information | información sobre enlace defectuoso |
| commun. | faulty link information | información de enlace averiado |
| transp. | faulty loading | vicio de cargamento |
| commun. | faulty margin | falso margen |
| meas.inst. | faulty measurement | medida errónea |
| food.serv. | faulty nutrition | alimentación defectuosa |
| mech.eng. | faulty operation | maniobra errónea |
| commun., IT | faulty point | lugar de la avería |
| commun., IT | faulty point | punto de fallo |
| commun. | faulty proof | prueba falsa |
| commun., IT | faulty repeater section | sección de repetidor averiada |
| commun., IT | faulty span | enlace averiado |
| commun., IT | faulty span | enlace en fallo |
| commun. | faulty state information | información de estado de defecto |
| tech., industr., construct. | faulty wool | lana defectuosa |
| mater.sc., mech.eng. | flaw or defect due to faulty workmanship | defecto de construcción |
| commun., IT | identification of faulty units | identificación de módulos con fallos |