For ILS approaches, when shall you set BAC and complete Before Landing Checklist?

For ILS approaches, when shall you set BAC and complete Before Landing Checklist?

• A. No later than Glide Slope Intercept Point
• B. On final approach
• C. At the Missed Approach Point
• D. After crossing the FAF

Answer: (A)

The key idea is to have the aircraft properly configured and the Before Landing Checklist completed before you start the final approach. In an ILS, the glide slope intercept point marks the transition into the final approach segment. By ensuring you’ve set the BAC and completed the checklist no later than this point, you’re confident the airplane is in the correct landing configuration (gear, flaps, lights, power settings, and necessary navigation/ approach data) and ready to follow the glideslope safely. Waiting until you’re on the final approach, at the missed approach point, or after crossing the FAF leaves you with less time and greater workload to make necessary configurations, increasing the risk of an unstable approach or missed procedure. Intercepting the glideslope with everything already set gives you a stable, controlled descent path toward landing.

The key idea is to have the aircraft properly configured and the Before Landing Checklist completed before you start the final approach. In an ILS, the glide slope intercept point marks the transition into the final approach segment. By ensuring you’ve set the BAC and completed the checklist no later than this point, you’re confident the airplane is in the correct landing configuration (gear, flaps, lights, power settings, and necessary navigation/ approach data) and ready to follow the glideslope safely.

Waiting until you’re on the final approach, at the missed approach point, or after crossing the FAF leaves you with less time and greater workload to make necessary configurations, increasing the risk of an unstable approach or missed procedure. Intercepting the glideslope with everything already set gives you a stable, controlled descent path toward landing.