EVENT 02 / 03DESCENT
Malfunction Level 2
Options: LEFT FMC FAIL / RIGHT FMC FAIL / IRS FAULT (ONE SIDE).
Memory Cue
One FMC = simpler = slower.
Objective
Loss of one FMC/IRS — degraded navigation.
What Examiner Watches
- Single FMC ops
- IRS alignment/cross-fill
- Raw-data ILS readiness
Common Mistakes
- Wrong QRH interpretation
- Poor crew coordination
Threats / TEM
- Aircraft systems effects on operation/performance
- Rush
- Distraction
- High workload
- High terrain
Boeing Procedural Notes
- Single FMC operation possible; LNAV/VNAV may degrade
- Raw-data ILS as backup
PF Responsibilities
- Fly raw-data if needed
PM Responsibilities
- QRH, source selection
CRM Focus
Cross-check both displays.