pam_access man page is missing from both binary and src rpms.
pam_access does not honor the "debug" option.
Man page is missing because it simply is not included in pam-0.77. There is
README.pam_access in /usr/share/doc/pam-0.77/txts
The debug option to pam_access was also implemented in later pam version than 0.77.
This bug is resolved in RHEL5 pam version.