MF99010 and 35 page cover letter

Preparing to load cume and groups V7R1 after not updating this system in a
while.
Very large cover letter for MF99010

......If PTF 5770999-MF99008 is not Permanently applied nor superseded by
a
Permanently applied PTF, there may not be enough reserved loadsource
storage available to install PTF 5770999-MF99010. To prevent the PTF
install from failing with CPF362C (Insufficient storage for Licensed
Internal Code fix), ....



Is MF99008 on our system if all I see is "superseded by MF99010" , but
MF99010 is not loaded, except Cover Letter.

Product ID/PTF ID . . . . . . . . . . : 5770999 MF99008
Release . . . . . . . . . . . . . . . : V7R1M0

On order . . . . . . . . . . . . . . . : No
PTF save file . . . . . . . . . . . . : No
PTF status . . . . . . . . . . . . . . : Superseded
Latest superseding PTF . . . . . . . . : MF99010
Superseded by . . . . . . . . . . . . : None
Type . . . . . . . . . . . . . . . . . :
Unattended IPL action . . . . . . . . : None
Optional part . . . . . . . . . . . . : *BASE
PTF library . . . . . . . . . . . . . :
Cover letter . . . . . . . . . . . . . : Yes

How can a cover letter "supersede" an applied ptf (or am I misunderstanding
what supersede means...)?

Jim