What is the meaning of the term "fly back only" in AMM documents?
(a) Accept with an inspection each 100 hours, cracks on the inner or outer shroud if there is:
A single hair line crack at the leading edge of the blade, possibly only on the coating on all blades (Area A1).

The statement translated means; Allow to continue in service with 100 hour inspection cycles the following defects.

(b) Accept for fly back only, cracks on the outer shrouds if they are:
A maximum of 0.08 in. (2.03 mm) long on up to 10 blades (Area A1).

Allow for One Time Flight Only, as described in the operators Op Specs and MEL, the following defects