What is the correct instruction for Direct View Panels?

What is the correct instruction for Direct View Panels?

• A. Direct view panels must be opened for TTL
• B. Direct view panels should be closed during flight
• C. Direct view panels must be opened only during takeoff
• D. Direct view panels are optional

Answer: (A)

Direct View Panels are required to be opened for TTL because TTL procedures need a direct line of sight through the panel to observe the relevant readings or cues. If the panels are kept closed, visibility is blocked, which can hide indicators or external conditions essential for the procedure, potentially compromising safety and accuracy. The instruction is not about a specific flight phase or optional status; it’s about ensuring the necessary visibility during TTL. Opening only during takeoff would restrict when TTL could be performed, and calling the panels optional would ignore a critical requirement.

Direct View Panels are required to be opened for TTL because TTL procedures need a direct line of sight through the panel to observe the relevant readings or cues. If the panels are kept closed, visibility is blocked, which can hide indicators or external conditions essential for the procedure, potentially compromising safety and accuracy. The instruction is not about a specific flight phase or optional status; it’s about ensuring the necessary visibility during TTL. Opening only during takeoff would restrict when TTL could be performed, and calling the panels optional would ignore a critical requirement.