workhorse22, according to a filed document, these entities have filed for Ch11...the 2 you mention are there...
Bristow Group, Inc.
BHNA Holdings Inc.
Bristow Alaska Inc.
Bristow Helicopters Inc.
Bristow U.S. Leasing LLC
Bristow U.S. LLC
BriLog Leasing Ltd. (Cayman)
Bristow Equipment Leasing Ltd. (Cayman)
This is from the case docket at:
https://cases.primeclerk.com/Bristow/Home-DocketInfo
...the finance people must have been busy today, because there was only one document there a couple of hours ago.