NASA-LLIS-0474
Lessons Learned – Telephone System Failure
active, Most Current
| Organization: | NASA |
| Publication Date: | 11 August 1993 |
| Status: | active |
| Page Count: | 2 |
scope:
Description of Driving Event:
A new telephone system went into a total failure condition and remained that way for 10 1/2 hours. This failure resulted in the entire lab being without telephone service, external calls, internal calls and VMX service.
The investigative team concluded that a switch failure caused the system breakdown. A contingency plan containing emergency procedures for a telephone system collapse was created.
Document History
NASA-LLIS-0474
August 11, 1993
Lessons Learned – Telephone System Failure
Description of Driving Event:
A new telephone system went into a total failure condition and remained that way for 10 1/2 hours. This failure resulted in the entire lab being without telephone...
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