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July 17, 1998

John McNamee
Mars Surveyor 98 Project Manager

Orbiter integration and test activities are proceeding on schedule. The Mars Color Imager (MARCI) has been calibrated and reinstalled on the orbiter. Optical chopper assembly reinstallation on the Pressure Modular InfraRed Radiometer (PMIRR) is scheduled for July 27. The orbiter pre-ship review is scheduled for August 14.

Another incident occurred on the lander spacecraft during integration and test activities. A technician incorrectly mated a power source to the launch umbilical (T0) data line. Preliminary analysis indicates that no damage occurred, however more detailed analysis and testing is underway to confirm that is the case. The Project has ordered a stand down on further test activities until an internal review on July 17 provides the approval to proceed with power on testing of the lander. Other actions implemented in response to incidents which have occurred in recent weeks follow: 1) Quality assurance and test conductor staffing on the floor during all lander and orbiter test operations will be increased, 2) Project Manager approval will be required for any individual working in excess of 20 hours overtime, 3) Test Department refresher training will be conducted, 4) Project test requirements will be scrubbed and reduced to the essentials required for shipment to the Cape and launch. The start of landed thermal balance testing has been rescheduled for July 22.

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