Low Vis Ops Flashcards
What has to be valid for Low Vis Operations to be allowed?
CASA Instrument EX62/19
Expires 31st May 2022
What is the minimum take-off minimum when visibility is measured using RV
(visibility along a runway assess by a person approved by the aerodrome operator)
CASA Instrument EX62/19
400m
What is the minimum take-off minimum when visibility is measured using RVR
(runway visual range)
CASA Instrument EX62/19
300m
What is the take-off minima, 2 crew, multi-engine aircraft?
FOPPM 7.7
0 ft ceiling, and
800m visibilty, or
550m vis with:
- runway edge lighting (spacing not > 60m), and - either rwy centreline lighting or markings
Where must take-off minima not be used?
FOPPM 7.7
At runways that require
visual sighting of physical features (eg. departure end of runway)
to satisfy normal all engine,
or engine failure procedures
Where are Low visibility procedures located?
FOPPM chapter 7.7
CASA Instrument EX62/19
QRH -Company Procedures -Low Vis Checklist
Which aerodromes are approved for Low visibility Operations (take-off with runway visibilities less than 550m)?
FOPPM 7.7
Melbourne Runways 16/27
Perth Runways 03/21
When does Low visibility Operations come into effect?
FOPPM 7.7
Take-off visibility less than 550m
When may ATC implement Low visibility Procedures?
When visibility below 2000m
If visibility <800m -ILS protected zone)
Define RVR?
FOPPM 7.7
The range over which the pilot of aircraft on centreline can see runway surface markings or lights.
Determined by automatic or electronic means
How is RV determined?
FOPPM 7.7
By visual observation
Where is RVR installed?
FOPPM 7.7
within 120m laterally of the runway, and
at a height which represents pilots view
For where are RVR readings provided?
FOPPM 7.7
Touchdown zones at both ends of runway, and
midpoint
What runway characteristics are required for Take-off minima of 300m RVR?
FOPPM 7.7
runway edge lighting (spacing not > 60m), and
rwy centreline LIGHTING
What runway characteristics are required for Take-off minima of 400m RVR?
FOPPM 7.7
runway edge lighting (spacing not > 60m), and
rwy centreline MARKINGS
Is the stop end visibility controlling?
FOPPM 7.7
No,
Not unless the mid-point RVR is not available
How many lights do we need to see for:
a) 300m vis?
b) 400m vis?
c) 550m vis?
300m vis = 5 lights
400m vis = 7 lights (6.6)
550m vis = 9 lights (9.1)
Describe the Low vis Take-off techniques (Captain and FO)?
PIC
AC
VIS
ALTN
PIC -100hrs seated in LHS
AC -NWS, Normal Brakes, Anti-skid, THR REV, Auto Br, Spoilers, Wipers, TOGA
VIS -300m centreline lighting, 400m centreline marking
DEP ALTN -
within 60mins (430nm)
wx forecast > Landing Minima for most suitable IAP
for ETU +-30mins ETA
Describe the Low Vis taxi procedure?
TAXI -
Map to Ground,
no brief or checks unless park brake SET,
Full length
Describe the Low Vis Before Take-off procedure?
LINE UP -
Cx rwy markings / rwy symbol position ND / ILS signal varified,
Max xwind 10kts,
Lights 5 (300m) / 7 (400m) -no need for abeam rwy light
Checklist
Describe the Low Vis Take-off procedure?
TO-
TOGA
Standing Start
What are the FO calls during Low Vis take-off?
“Left of Heading”, “Right of heading”
if deviation away from rwy centreline is made
How many ways must the rwy be variefied for a Low Vis take-off?
3 ways
Rwy markings
Rwy symbol on ND
ILS signal varified
What should be done if visibility is severely reduced prior to 100 kts?
Reject
What should be done if visibility is severely reduced above 100 kts?
Preferable to continue
Use Heading bug on PFD or Yaw Bar
How many metres of runway is left after the first red centreline light passes under the nose?
900m
How many metres of runway is left if all the centreline lights are red?
300m
Take action accordingly to ensure aircraft is stopped in remaining distance
When is a Departure Alternate required?
FOPPM ch6a pg6-18
The wx at the Departure AD is < lowest published landing minima for the runway in use during ETU
A valid TAF is not available for the departure AD
(valid for period of flight)
Other reasons where departure AD is not available for landing
What is the criteria for the nominated Departure Alternate?
FOPPM ch6a pg6-19
within 60mins (430nm)
wx forecast > Landing Minima for most suitable IAP
for ETU +-30mins ETA
taking into account any req to increase landing minima for OEI
