{"nhtsa_id":10189550,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2021-04-01","date":"2021-03-29","document_id":"4101316","mfr_campaign":null,"replaces":null,"component":"EQUIPMENT","mfr_system":null,"summary":"The black tank flush may have been plumbed backwards.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2021/MC-10189550-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2021/MC-10189550-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10189550","components":[{"id":"equipment","name":"Equipment and accessories","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"FOREST RIVER","model":"COLUMBUS","year_from":2021,"year_to":2021,"match":"exact","vehicle_ids":["2021_forest-river_columbus"]}],"as_of":"2026-10-19","note":"A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.","attribution":[]}