Code #1

Observations

18 characters, you have a bit more numbers than you need but it will help you get the keyword

Make a 3×6 grid

Read from the lower left Z

zzx62150br0nt675km

Convert from leetspeak

zzx62isobront675km

Look like hex but it needs a small manipulation

Let’s start by making pairs to see what we are working with

8e 7b 6f af ab 79 96 7d 8c 7b 9a 7c aa a9 a9 7a 86

Look at where numbers should fall in the passcode format, they all start with a. Good candidate for Hex Atbash

0123456789abcdef
fedcba9876543210

71 84 90 50 54 86 69 82 73 84 65 83 55 56 56 85 79

Convert decimal to Ascii

GTZ26VERITAS788UO

16 characters with the right amount of numbers for a valid passcode

Make a 4×4 grid

Read going up from the lower left H

hjx94repair874uu