Policy Letter 167


On-board Flight Deck Door Security Inspections by air carrier inspectors and cabin safety inspectors

File Number

RDIMS # 705265



Policy Statement

The purpose of this Policy Letter is to inform cabin safety and air carrier inspectors of their responsibilities for flight deck door inspections in accordance with the Enhanced Security Measures, and the Canadian Aviation Regulations (CARs), while conducting their other duties on board an aircraft.


This Policy applies to Transport Canada (TC) air carrier and cabin safety inspectors in the course of their duties on-board Canadian-registered aircraft operated under Subpart 705 of the CARs.


The Security and Emergency Preparedness (SEP) Directorate has been mandated by the Minister to ensure an adequate level of security in all areas of aircraft operations. Security Operations Policy No. 20/ABC advises Security Operations personnel that Commercial and Business Aviation (CBA) has accepted the responsibility for oversight of the security measures dealing with flight deck door operation during flight.

Excerpt from SEP Policy 20/ABC - 'Locking of Cockpit Doors'

« Cabin Safety and Pilot Inspectors will review the applicable security regulations and measures and inspect against them during in-flight inspections, report infractions, and take the necessary follow-up action.
In addition, all passenger complaints regarding on-board security will be handled by CBA in the same manner as any other passenger complaint.

As the Enhanced Security Measures and the CARs contain congruent wording for flight deck door locking procedures, air carrier inspectors and cabin safety inspectors will accomplish this task by reference to the appropriate sections of the CARs.

Section 705.80 of the CARs mandates the installation of the flight deck door and locking device for passenger and cargo aircraft operated under this Subpart.

Section 705.45 of the CARs mandates the operation of the flight deck door and locking procedures during flight.

Section 705.27 of the CARs specifies the persons who may have access to the flight deck during flight.


Inspectors authorized to conduct in-flight inspections should review Subsection 705.27 (Admission to the Flight Deck), Section 705.45 (Closing and Locking of Flight Deck Door), Section 705.80 (Doors and Locks) of the CARs, and the Air Operator's Operations Manual approved procedures concerning flight deck door security, and inspect against these requirements during all inspections. Inspectors must document and report infractions, and take any necessary follow-up action.

To preserve flight deck security, inspectors are reminded not to transit in and out of the flight deck except in accordance with the CARs and the approved company procedures.

Aircraft operating with non-functioning flight deck door locks must also be inspected for conformance to their Minimum Equipment List (MEL) relief conditions, where the MEL authorizes dispatch with inoperative door locks.

Further guidance on TC MEL policy concerning flight deck door locks may be found in CBA Policy Letter No. 139. 

All passenger complaints concerning on board security are to be addressed by CBA in the same manner as any other passenger complaint.

SEP is to be advised and copied on significant reports or complaints. The Chief, Compliance and Inspection Programs (ABCC) may be contacted in Ottawa at (613) 949 0579.

Future Disposition

This Policy Letter will remain in effect until further notice.

Reference Number

This Policy Letter is designated AARX No. 167. 


Michel Gaudreau
Commercial & Business Aviation

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