I don't know what ALPA has stated on this matter, but the original House bill is easy to look up. Ace66 claimed that Nehls sponsored the first age 67 bill in either house; that's incorrect.
It was the 117th Congress, HR 3038 (if you look up HR 3038 for the 118th Congress, you get a different bill)
Here's the link: https://www.congress.gov/bill/117th-...%5D%7D&s=2&r=2
This was the first bill introduced in the House to increase retirement age, dated 5/7/21. You can see that Nehls' name isn't attached to this bill as either the sponsor or a cosponsor.

This was 'repackaged' later in the 117th Congress as the 'Let Experienced Pilots Fly Act' which had parallel bills in both the House and Senate.
https://www.congress.gov/bill/117th-...%5D%7D&s=8&r=2
https://www.congress.gov/bill/117th-...%5D%7D&s=8&r=1
These bills were introduced on 7/25 and 7/27/22, a little more than a year after Ferguson first sponsored the original bill. Note that Nehls was a cosponsor of the bill on the House side, but not the sponsor.