Parameter Tolerance Profile Measurement to be made Transmitter tobe checked
Power density In accordance with ICAO Annex 10 Volume 1 paragraph 3.11.4.10.1 for approach elevationguidance Commissioning 20 NM ±40 degrees part orbit within coverage at MSA; andPart orbit at not less than 5 NMfrom ARD at MSARoutine Part orbit at not less than 5 NMfrom ARD at MSA CommissioningPlot of ±40 degrees at 20 NM; andPlot of ±40 degrees at 5 NMRoutinePlot of ±40 degrees at 5 NM 20 NM one TXonly5 NM both TX
Multipath relativepowerdensityWithin theMLS elevation coverage The duration of a reflected approach elevation guidance scanning beam signal whose power density is higher than 4dB below the approachelevation guidance scanning beam power density shall be shorter than one second Level Slice on centreline from 20 NM at 0.3 theta to intersect aFly down from 7 NM on azimuth and elevation to ARD Plot or analysis CommissioningOne TXBiennial OneTX
Monitor Verification Ground Check Spot check CommissioningBothRoutineBoth
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FLI 02 The Approval of Flight Inspection Organisations
Part 1 Preliminary Material
1 Introduction
1.1 Article 205 (5) of the Air Navigation Order requires that a navigation aid is flight checked by the CAA or a person approved by the CAA, on such occasions as the CAA may require.
1.2 The purpose of this document is to define the conditions for such an approval.
2 Scope
2.1 This document defines the procedures and requirements for the approval of flight inspection organisations and their equipment.
2.2 It is divided into three sections as follows: Section 1 – Flight Inspection Organisations – Approval Procedure. This section defines the procedure to be followed when requesting approval of a flight
inspection organisation.
Section 2 – Flight Inspection System – Navigation aids (general).
Section 3 – Annexes specific to each navigational aid.
Part 2 Requirements
NOTE: The requirements in this section apply to the flight inspection of all types of navigational aid. Additional requirements for specific navigational aids are given in the annexes to FLI 02.
3 Flight Inspection Organisations – Approval Procedure
3.1 Safety Objective
An approved applicant shall be capable of using flight inspection techniques to measure accurately the signals in space radiated by those navigational aids which they are approved to inspect (1630).
3.2 Applicants shall submit the required information in a coherent documentary form (1631).
3.3 Applicants shall detail the overall operation in an Exposition document including references to associated documents (1632). See Section 2, paragraph 4 for details.
NOTE: The CAA will examine the submitted documentation and may call for further information on certain subjects. For example, the method used to calculate the measurement uncertainty for certain parameters may need to be examined in more detail.
3.4 The applicant may propose an aircraft or system which is new in concept or not in common use for flight inspection. In such a case, the CAA will seek advice from other expert departments within the Safety Regulation Group and may also initiate a general consultation with the industry.
3.5 If the applicant proposes a new system or aircraft or the organisation does not have a demonstrable history of flight inspection, then practical demonstrations of capability will be necessary.
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