This passcode is needed along with Passcode B and Passcode C to go through closed doors in the Forward Hangar.
In Ada's campaign it can be dropped by the first J'avo soldier who finds Ada after she explores locked doors in the hangar.
In Chris's campaign, it can be found in the beginning of the hangar near the corpse which is located not far from the electronically locked doors.
- ?, ed (2012). BIOHAZARD 6 Official Complete Guide. Famitsu.