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Instrument Rating Ground School Course, 2007 Edition

Updates, Amendments and Revisions

Page 38, Approach Ban. Replace the existing text on "1.29 Approach Ban" with the following revised text:

1.29 Approach Ban

Approaches are GOVERNED by RVR values only. Pilots non CARs Part VII (air operator) aircraft are PROHIBITED from completing an instrument approach past the outer marker or final approach fix to a runway served by an RVR if the RVR values are BELOW the following minima:

Measured RVR Minimums
RVR A only 1200
RVR A and B 1200/600
RVR B only 1200

Exceptions to minimum RVR (when approach ban not in effect) for pilots conducting CAT III precision approach:

a) when the below-minimum RVR report is received, the aircraft is inbound on approach and has passed the outer marker or the fix that serves as the outer marker of the instrument landing system in use for the runway;
b) the PIC has informed the appropriate ATC unit that the aircraft is on a training flight and that the PIC intends to initiate a missed approach procedure at or above the DH or MDA as appropriate;
c) the RVR is fluctuating above and below the minimum RVR or the ground visibility of the aerodrome as reported by an ATC unit or FSS is at least 1/4 mile.

With respect to approach restrictions, in the case of a local phenomenon or any fluctuations that affect RVR validity, where the ground visibility is reported by ATC or FSS to be at or above 1/4 mile, an approach may be completed.

EXAMPLE: An ILS CAT III approach is to be conducted to a runway by a non CARs Part VII aircraft. Transmissometers are located at position A and B. ATC reports "RVR A 1000 variable 800 - 1400, RVR B 800". Is an approach authorized?

ANSWER: Yes. An approach is authorized because RVR fluctuations are above RVR 1200. If RVR B had been below 600, an approach would not be authorized.

No PIC of an IFR aircraft shall commence a non-precision approach (e.g. GPS, LOC, NDB), an APV or a CAT I or CAT II precision approach where low visibility procedures are in effect.

Runway Visibility

When no reading from RVR A or RVR B for the runway of intended approach is available, the pilot or a qualified person may make an assessment of the runway visibility in accordance with CARs standards. This assessment is only valid for 20 minutes after it is made. Runway visibility is assessed while stationary at the runway threshold take-off point, at the taxiway holding position for the taxiway adjoining the runway threshold, or at a point adjacent to the runway threshold. When assessing runway visibility, a pilot

a) assesses, in the runway direction, the furthest visible runway edge lights or landmarks within 10 degrees of the runway centreline that can be seen and recognized;
b) from the above assessment, determines the distance (in feet) based on a 200 foot runway edge light spacing or using the applicable Aerodrome Chart in the CAP;
c) immediately reports the distance assessed to ATS, if available, or to the inquiring party, as the runway visibility along the specified runway in the following format:
"RUNWAY VISIBILITY, RUNWAY [Runway number] ASSESSED AS [distance assessed] FEET AT [time] UTC"

If the runway visibility varies during the assessment, the pilot reports the lowest value observed. The lowest reported value is 200 feet, with lower values reported as "...LESS THAN 200 FEET ...". The highest reported value is 6,000 feet, with higher values reported as "...GREATER THAN 6,000 FEET...".

NOTE: Further RVR approach minimums apply to CARS Part VII Air Operators but since the INRAT can be obtained on a private pilot licence (non commercial), air carrier RVR minimums should not be applicable for the purposes of the INRAT and hence not examinable.

[Ref: CARs 602.129 - 130, 622.131; AIM RAC 9.19.2]

Page 118, Correct answer for Question 8 is 5,000 feet ASL (not 3,000 feet).


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