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More Details for 1968-07-11

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ASPO Manager Low informed Apollo Program Director Phillips of several changes in the LM vibration testing program.

Before beginning the series of tests, he told Phillips, red line values were established on critical components that were not to be exceeded. However, because of the most recent test effort on LM-2, which resulted from the pogo problem experienced during the flight of Apollo 6, Low was forced to authorize vibration testing beyond the red line values initially set for the spacecraft. This action, in turn, forced an inspection and possible refurbishment of LM-2 to make it available for an unmanned flight, should such a second unmanned LM test mission be required. He then cited MSC's future plans for LM-2:

- For the planned drop tests with the vehicle, the upper decks would be inspected and repaired or replaced where necessary.
- Should a LM-2 flight become necessary, all of the descent stage upper decks would probably be replaced.

Phillips approved Low's action immediately. He urged Low to "continue to give priority to that work which is necessary for full and early resolution of the POGO and spacecraft structural dynamics questions."