F-1 “Cap-gap” Status and Work Authorization Extension Only Valid Through Sept. 30, 2018
F-1 students who have an H-1B petition that remains pending on Oct. 1, 2018, risk accruing unlawful presence if they continue to work on or after Oct. 1 (unless otherwise authorized to continue employment), as their “cap-gap” work authorization is only valid through Sept. 30.
My mom lost her extension approval letter and couldn't board the flight from India because airline authorities said that letter is required. Thank you Mr. Khanna for your suggestion of contacting my area congressman to get the details of missing extension approval letter. That was very helpful and I got those details. I have all the information to file I-824 to get a copy of extension approval letter.