PBN Operational approval requirements

3.1  AIRWORTHINESS

a)  Airworthiness Approval

An aircraft is eligible for a particular PBN application provided there is a clear statement of its PBN capability in the TC (Type Certificate), the STC (Supplemental Type Certificate), or the associated documentation — AFM or equivalent document; or a compliance statement from the manufacturer, which has been approved by the State of Design. The operator must have a configuration list detailing the pertinent hardware and software components and equipment used for the PBN operation.

The aircraft shall be required to hold an airworthiness approval, or have been modified in accordance with approved data, for the type of envisaged PBN, for its navigation system operations.

b)  Electronic Navigation Data Management

Procedures shall be in place for electronic navigation data products, that are for use in the air and on the ground, to ensure:

  1. acceptable standards of data integrity and compatibility with the intended function;
  2. continual monitoring of the related data processes and the products; and
  3. the timely distribution and insertion of electronic navigation data.

3.2  CONTINUED AIRWORTHINESS

a)  Procedures shall be in place to maintain the aircraft to conform to its type design and with the requirements for all navigation approvals held.

b)  The aircraft maintenance programme must take account of all operational approvals and maintain navigation systems so that they are compliant with navigation approvals.

3.3  FLIGHT OPERATIONS

a)  Minimum Equipment List (MEL)

The MEL should identify the minimum equipment necessary to satisfy the intended navigation function required.

b)  Flight Crew composition and experience requirements

The Operations Manual should contain details of the crew composition required for PBN operations, the qualifications required and the experience required to obtain those qualifications.

c)  Standard operating procedures (SOPs)

Standard operating procedures (SOPs) must be developed to cover both normal and non-normal (contingency) procedures for the systems used in the PBN operation. The SOPs must be documented in the OM and address the following:

  1. preflight planning requirements, including the MEL, appropriate navaids, the navigation database, and, where appropriate, RNP/RAIM prediction;
  2. actions to be taken prior to commencing the PBN operation;
  3. actions to be taken during the PBN operation;
  4. actions to be taken in the event of a contingency (e.g. equipment failures and/or weather conditions) that could affect the aircraft’s ability to maintain navigation accuracy. These procedures would also require the flight crew to state their intentions, coordinate a plan of action and obtain a revised ATC clearance in case of contingencies, including the reporting to the operator and to the Overseas Territory Aviation Authority (OTAA) of significant incidents.

d)  Monitoring and incident reporting

Flight crew responsibilities must be laid down in SOPs, with respect to the performance monitoring and alerting provided by the navigation system, together with reporting to the operator and OTAA of significant incidents such as:

  1. navigation errors not associated with transitions from an inertial navigation mode to a radio navigation mode;
  2. unexpected deviations in lateral or vertical flight path attributed to incorrect navigation data;
  3. significant misleading information without failure warning;
  4. total loss or multiple failures of the PBN navigation equipment; or
  5. problems with ground navigation facilities leading to significant
  6. navigation errors.

e)  Training programme

Each pilot must receive appropriate training, briefings and guidance material in order to safely conduct any operation. The training programme needs to cover both ground training and flight training and to cover the following areas:

  1. Area navigation principles;
  2. Navigation system principles;
  3. Equipment operation and functionality;
  4. Flight planning;
  5. Operating procedures;
  6. Performance monitoring and alerting.

f)  Recurrent Training

The flight crew training programme must include provision for the management of recurrent training and the demonstration of competency.


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