There apparently is an error in the MACR. The MACR as typed shows 41-10453 but there is correction comment in the version in fold3.com giving the number as 42-10453. When you put your cursor over the serial number in the MACR, the correction window pops up.
The eye-witness statement by Lt Novy (MACR page 7) refers to Turner's plane as #32, which appears to be the number of the plane in the picture.
The MACR in the National Archives does not show the "correction".
https://catalog.archives.gov/id/90905529
For those with fold3, here is the MACR page that "pops up" the correction.
https://www.fold3.com/image/28701175
Sorry for the confusion.