Which items are restricted on a TLR?

The correct choice identifies items that are typically restricted related to aircraft performance and operational limits. QNH refers to the pressure setting adjusted for the altimeter's measurement at a specific airport elevation, which is critical for maintaining accurate altitude readings. OAT stands for Outside Air Temperature, a key factor that influences aircraft performance; warmer temperatures can affect lift and engine performance. MRTW, or Maximum Retirement Take-off Weight, is another essential parameter that indicates the maximum weight at which an aircraft can safely take off.

These parameters are vital for ensuring that an aircraft operates within safe and legal limits during takeoff and landing, consistent with published operational standards and regulations. Understanding these restrictions helps pilots make informed decisions regarding flight operations and safety.

The other options reflect various aviation-related parameters, but they do not pertain specifically to restricted items on a TLR (Takeoff and Landing Report). For example, weather conditions, runway characteristics, and visibility factors, while important, do not fall under the specific restrictions mentioned in the correct choice.