7週6日目 失敗をきっかけに
Regardless・list・opportunity
接続：N＋を契機に
take important events as turning points; formal
注意 / Note：The most formal of the three patterns in the same article (〜をきっかけに／〜を契機に／〜を機に). Only used for MAJOR turning point events: 事故・災害・創立・入社. Using it for daily chores sounds stylish.
比較 / Compare：Same song: 〜をきっかけに／〜を機に. These models are often mistakenly chosen for each other — carefully read the 接続 and nuances above and then decide.
よく出る形 / Common form：名詞＋を契機に（して）。The most formal of the three forms, often found in journalistic writing. In front must be a BIG event: 事故・災害・入社・創立.
入社を契機に東京へ移った。
Because of joining the company, I moved to Tokyo.
事故を契機に制度が改正された。
After the accident, the regime was modified.
今回の災害を契機に、避難計画が全面的に見直された。
Taking this disaster as a turning point, the evacuation plan was comprehensively reviewed.