# Copper wire upgrade caused nationwide flight suspension, US transport secretary says

- Published: 2026-11-14T19:12:25Z
- Updated: 2026-11-15T07:49:34Z
- Section: Breaking
- Language: English (en)
- Source: BBC News — https://www.bbc.co.uk/news/articles/c6wy9lynq4qno?at_medium=RSS&at_campaign=rss
- Tags: BBC News · Top News
- Canonical: https://www.khabarestan.com/en/news/%D8%A8%D9%87%D8%B1%D9%88%D8%B2%D8%B1%D8%B3%D8%A7%D9%86%DB%8C-%D8%B3%DB%8C%D9%85-%D9%85%D8%B3%DB%8C-%D8%A8%D8%A7%D8%B9%D8%AB-%D8%AA%D9%88%D9%82%D9%81-%D9%BE%D8%B1%D9%88%D8%A7%D8%B2-%D8%B3%D8%B1%D8%A7%D8%B3%D8%B1%DB%8C-%D9%85%DB%8C%D8%B4%D9%88%D8%AF

The US government is trying to find out whether the chaos was caused by "incompetence" or faulty equipment.

---
Original text, summarised by this site.