CAT II ILS

Question 1

CAT II ILS weather criteria

Answer 1

RVR 1200

max crosswind is 10 knots (15 kts for training with a min ceiling/vis: 200- 1/2)

Question 2

What pilots can fly a CAT II approach

Answer 2

both pilots must be current

AC must have logged at least 100 hours in command since the AC qualification evaluation

Question 3

aircraft equipment requirements

Answer 3

PFD (HUD/PFD) and NAV display in compass or map format operative on each side
dual F/D displays
both ILS NAV (PLSR) receivers
radar altimeter

Question 4

full flight instrumentation includes:

Answer 4

F/D, HUD/PFD and ND at each station
No “NO CAT II” warning messages
a HUD is required to be used at the PF position, if available

Question 5

If full flight instrumentation is not available, approach mins are limited to what?

Answer 5

DH based on a hAT of 300 feet
RVR 40 (3/4 mile vis with no RVR)

Question 6

airfield equipment requirements

Answer 6

approach lights: ALSF-1 or ALSF-2
runway centerline lighting
HIRL or TDZE 
RVR
ILS FAR field monitor (monitors the ILS critical area)
sequenced flashers

Question 7

restrictions

Answer 7

select CAT II mode on AFCS panel
localizer/approach azimuth must be intercepted before the glideslope/glide path is captured
AP should be disengaged at DH, unless a coupled go-around is made
an operative RA must be selected for display on the PILOT ID side selected
CAT II MLS approaches are not authorized in the COMP mode

Question 8

NO CAT II messages for:

Answer 8

failure of selected/both RAs
failure of selected ADC(s), select same ADC, or altitude/airspeed displays differ
failure of selected IRUs, select same IRU, or heading/attitude displays differ
either/both PLSRs fail

Question 9

loss of CAT II capability prior to 300’ AGL

Answer 9

fly a CAT I approach unless the condition can be corrected before reaching 300’ AGL

Question 10

loss of CAT II capability at or below 300’ AGL

Answer 10

missed approach performed unless visual cues are sufficient to complete the approach and landing

Question 11

CAT II tolerances

Answer 11

approach airspeed +/- 5 kts

deviation from localizer or glideslope of not more than 1/2 dot

Question 12

continue the CAT II approach at DH only if all are met:

Answer 12

runway environment in sight
airspeed is +/- 5 kts of approach speed
localizer and glideslope deviation of not more than 1/2 dot
tracking within the extended lateral confines of the runway
stabilized in attitude and airspeed