Operational Procedures
Operational Procedures tests standard operating procedures, emergency handling, checklists and decision-making in abnormal and emergency situations.
Core rules
- Memory items are performed immediately for time-critical emergencies; the written checklist follows.
- V1 is the decision speed: below V1, a rejected takeoff may be appropriate; above V1, continue and deal with the emergency airborne.
- Engine fire procedures typically include thrust reduction, fire-handle activation, agent discharge and diversion planning.
- MEL items require operational and maintenance action; they are not a way to dispatch with an unsafe condition.
Worked example
During takeoff, an engine fire warning occurs at 100 kt with V1 = 120 kt. The crew rejects the takeoff: reduce thrust, maintain directional control, brake, and evacuate if fire persists. If the same warning occurs at 130 kt, the crew continues, establishes climb, secures the engine and plans the nearest suitable landing.
Traps
- Treating V1 as rotate speed.
- Delaying memory items to read the checklist.
- Continuing a takeoff after V1 for a non-critical abnormality.
- Using the MEL without considering the operational consequences.
- Forgetting evacuation, fire-bottle discharge and emergency services notification.