The previous repair report for ultra duo flex cart unit was reviewed and noted no related non-conformances, requests for deviation (rfd) or any other issues with the repair.The previous repair report review found no issues with the device after repair and all verifications, inspections and tests were successfully completed.Using crm to query for the device was noted to have been previously repaired five times, the previous repair being for a level sensor issue on (b)(6) 2016.The level sensor issue was not associated with the current reported issue, so the previous repair was a non-related issue.On (b)(6) 2017, the service technician from (b)(4) was at (b)(6) and found that the unit had a leaking seal.On (b)(6) 2018, he replaced the manifold housing with a housing kit (part# 91927) and then verified that the cart was functioning as intended.The technician then returned the cart to service without further incident.The device was tested, inspected, and repaired as per cl ¿ repair carts rev.4.While the service technician does confirm the reported event and notes that the device was functioning as intended after the cl500 housing was replaced, it is unknown if the customer used the out of round manifolds with their device or what factors contributed to the cl housing leaking.Therefore, based on the information provided, a specific root cause of the cracked manifold housing cannot be determined.
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