Jet Propulsion Laboratory (U.S.) Office of Engineering and Review.

The Space-Flight Significant Events File (SSEF) was established by the Laboratory to provide a formal record of significant events that led to a lesson learned. It was intended that the SSEF have a wide circulation within the Laboratory's engineering and scientific personnel.

The SSEF documented events arising out of the implementation and operation of flight and related support equipment. The SSEF used the Laboratory's various problem / failure and discrepancy reporting systems to identify and document any problem, failure, incident, surprise, or anomaly to the extent that 1) the event was significant in terms of actual or potential impact to the activity in which it occurred; and 2) its importance to future Laboratory activities. Significant events of other origin with "lessons learned" relative to Laboratory activities were also been included.

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