Continuity through the circuit breaker in the mechanically closed condition was prevented by a foreign substance on the contact surface onboard Apollo 14. It was concluded that this was the only failure of this type in over 3400 units that were flown, and since no circuit breaker is a single-point failure for crew safety or mission success, no corrective action was taken.


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    Title :

    Apollo 14 mission circuit breaker anomaly


    Publication date :

    1971-12-01


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English