During the PDIs, which door does the No1 work on for assigned checks?

The No1, or Cabin Manager, is typically responsible for the L1 door during Pre-Departure Inspections (PDIs) on an aircraft. The L1 door is the primary boarding door and is critical for safety and operational checks since it is the main entrance and exit for passengers and crew. The No1 needs to ensure that this door functions correctly, including checking locking mechanisms, emergency systems, and any other safety features. This role is vital, as the L1 door is central to the boarding and deplaning process, which directly impacts the overall safety and efficiency of operations.

While other doors are also important and require attention, the L1 door takes precedence in this context given its function and position in the aircraft operations.