(b)(4).The reported complaint was confirmed.During the laboratory evaluation, the product surveillance technician (pst) installed the returned board onto an 8k pump test fixture, pressed the reverse buttons on the membrane switch and the test fixture pump did not go into reverse.The pst observed the reverse switches had residue on them causing no continuity across the switches when they were pressed.If additional information becomes available on this complaint that would alter the facts and/or conclusion, a supplemental report will be filed accordingly.
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