AD 2007-26-09 is basically a rewrite of two older AD's - AD 2002-09-08
and AD 77-12-06. It affects Hartzell "Y" shank aluminum blades with
blade serial numbers D47533 and below. If your blades have a serial
number D47534 or higher, your propeller is not affected by 2007-26-09.
The serial numbers proceed in alpha-numeric order, so a blade serial
number beginning with an "E," "F," "G" etc. would be higher than
D47534.

Any of the following would indicate compliance with AD 2007-26-09:

1. Blade serial numbers D47534 or higher. (as stated earlier, your "H"
prefix blades are in compliance as manufactured).
2. A log book entry indicating compliance with AD 2002-09-08 or AD
77-12-06. (you also have a sign-off for compliance with 77-12-06)

Basically, if you purchased your propeller after 1977, or it has been
overhauled since 1977, your propeller is in compliance with AD
2007-26-09

Nosmo King