This puzzle requires the “U.S.S. Cerritos Duty Roster” data page, and the wearable red VISOR.
You’ll want to filter out some of the noise by viewing the duty roster through the red VISOR.
You may note something interesting about the “days without incident” numbers when viewed through the VISOR.
You may also note something interesting about the 26 names listed on the duty roster.
There is a name on the roster for every letter of the alphabet. The days without incident numbers can indicate seven specific names and what order to consider them.
ANSWER REVEAL: When wearing the red VISOR, it can be seen that most of the crew has 0 days without incident (this is a rather accident prone group\!) with the exception of seven crew members. Ens. Umberto shows 1 day without an accident. Ens. Nano shows 2 days. Ens. Barnes shows 3 days. Ens. Livik shows 4\. Ens. Olly shows 5\. Ens. Casey shows 6, and Ens. Karavitus shows 7\. Every letter of the alphabet is represented (out of order) by the 26 names listed on the roster. Noting the first letter of the names that have a number of days without incident, in numerical order gives the answer UNBLOCK. Looking at the “dolphin” envelope, unblock is synonymous with CLEAR. So CLEAR is the keyword that grants access to the envelope.