Upvote:2
"Carrier caused" delays are things like mechanical issues, crew scheduling issues, aircraft scheduling, etc.
Delays caused by weather related issues (which can apply to bad weather at another airport that your plane went through earlier in the day before reaching your airport), ATC delays, union strikes, etc are not covered under that clause in the contract. These type delays are not covered by any airlines, but on occasion airline representatives might go beyond the terms and provide assistance for delays out of their control.