{"id":47364,"date":"2022-11-21T22:34:14","date_gmt":"2022-11-21T22:34:14","guid":{"rendered":"https:\/\/freeflysystems.com\/?post_type=kb_article&p=47364"},"modified":"2022-11-21T22:34:14","modified_gmt":"2022-11-21T22:34:14","slug":"sb003-super-light-battery-sl8-battery-incident-21-nov-2022-follow-up","status":"publish","type":"kb_article","link":"https:\/\/freeflysystems.com\/knowledge-base\/sb003-super-light-battery-sl8-battery-incident-21-nov-2022-follow-up","title":{"rendered":"SB003 Super Light Battery \u2013 SL8 Battery Incident \u2013 21 Nov 2022 Follow-Up"},"content":{"rendered":"

Date Released:<\/strong> November 21st, 2022<\/span><\/p>\n

Subject:<\/strong> SL8 Battery Incident – investigation closure<\/span><\/p>\n

Effectivity:<\/strong> Immediate<\/span><\/p>\n

Required Action:<\/strong>\u00a0 None at this time – Alert<\/span><\/p>\n

INTRODUCTION<\/strong><\/p>\n

This is the final follow-up to our 14 Nov Service Bulletin regarding an SL8 battery fire at our East Coast office. After a comprehensive investigation of the incident, we cannot conclusively determine the root cause of the battery fire and have reached the area of diminishing returns on our fault tree and investigation actions. Therefore, we are concluding the investigation of this incident.\u00a0 Below we describe some of our findings.\u00a0\u00a0<\/span><\/p>\n

There are no required actions and customers are advised to continue normal SL4 \/ SL8 \/ Astro operations with diligent attention paid to any battery faults. Freefly continues to be confident in our SL batteries and stands behind their safety, reliability, and performance.\u00a0<\/span><\/p>\n

DISCUSSION<\/strong><\/p>\n

Since our previous bulletin, we have focused primarily on two possibilities: overvoltage leading to critical component failure, and manufacturing defects in the PBCA.\u00a0 Here is the status of investigation on each possible failure mechanism:<\/span><\/p>\n