CAP 413
Radiotelephony Manual
Chapter 4 Page 43
7.3
Runway Visual Range (RVR)/Visibility
7.3.1
When transmitting the runway visual range the abbreviation RVR will be used without
using the phonetic word for each letter, e.g. RVR runway 27, 800 metres. The runway
designator may be omitted if there is no possibility of confusion.
7.3.2
Where instrumented RVR (IRVR) is not available, RVR for the purposes of Category 1
and non-precision instrument approach operations may be assessed by human
observer and transmitted by the controller to the pilot.
7.3.3
If the assessed value is more than the maximum reportable value, controllers are to
advise the pilot.
7.3.4
If no lights are visible controllers are to state "RVR less than (number) metres,
inserting the value corresponding to one light.
7.3.5
Occasionally pilots of aircraft may report, or observations from the control tower may
indicate that the visibility conditions on the runway are significantly different to those
being reported. Under no circumstances is a controller to pass a pilot information
which suggests that the visibility is better than the RVR reported. However, when a
pilot's report or an observation from the tower indicates a worse condition on the
runway this information is to be passed to the pilot with subsequent RVR reports for
as long as the condition is considered to exist.
7.3.6
Where RVR is not available the pilot is to be advised.
BIGJET 347, RVR 400 metres
BIGJET 347, RVR is greater than
1200 metres
BIGJET 347, RVR less than 60
metres
BIGJET 347, RVR 400 metres.
Thicker patches reported further
along the runway by the pilot of a
landing aircraft
BIGJET 347, RVR 400 metres.
Thicker patches observed further
along the runway from the control
tower
BIGJET 347, RVR runway 27 not
available
BIGJET 347, RVR runway 27 not
reported
17 November 2011
Summary of Contents for 413
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