Because Boeing does not use Airbus’s "Laws," the 787 FCOM introduces a unique hierarchy: Normal Mode, Secondary Mode, Direct Mode, and Mechanical Backup.
Here is the 787 FCOM exclusive insight most simmers miss:
Exclusive Checklist: The non-normal procedure for "Dual Air Data Inertial Reference System (ADIRS) Failure" is 37 steps long. That is the longest procedure in the entire 787 FCOM. 787 fcom exclusive
| Category | Exclusive Content Examples | |----------|----------------------------| | Normal Procedures | Unique flows (e.g., electronic checklist logic, auto-land engagement conditions) | | Non-Normal Procedures | Specific failure responses not covered in the QRH alone | | Performance | Runway analysis with 787-specific credit for autobrakes, derates, assumed temp | | Limitations | Bleedless engine operation margins, battery temp restrictions | | FMS Logic | 787-specific flight management computer behavior (e.g., LNAV/VNAV unique modes) | | Dispatch Deviations | MMEL item handling instructions only in FCOM |
Where to find it: FCOM 2.40.3 (Pneumatic – Backup & Reversion) Because Boeing does not use Airbus’s "Laws," the
The 787 is “bleedless” – no engine bleed air for anti-ice or cabin pressurization. However, the FCOM reveals a hidden mode: Electrical Pneumatic Reversion (EPR) .
The exclusive detail:
Why this matters: Most recurrent training doesn’t cover EPR because it’s astronomically rare. But if you see a “CAB FAN 1/2/3/4 FAIL” cascade, expect the FMC to automatically limit your ceiling.