Chap 8.4 ALL WEATHER OPERATIONS (AWO)

Question 1

509- What AWO/LVO/LVP/LVTO Means?

(8.4.1)

Answer 1

AWO All Weather Operations

LVO Low Visibility Operations

LVP Low Visibility Procedures

LVTO Low Visibility TakeOff.

Question 2

510- In terms of RVR What’s Defines a LVO According to ICAO?

(8.4.1)

Answer 2

• RVR < 400 m for TakeOff (LVTO)
• RVR < 550 m for Landing.

Question 3

511- In terms of RVR What’s Defines a LVP According to ICAO?

(8.4.1)

Answer 3

• RVR < 550 m for TakeOff & Landing.

Question 4

512- What’s the Difference Between a LVO and a LVP? (8.4.1)

Answer 4

• LVO: Low Visibility Operation are Requirements for

an Operator (KA)

• LVP: Low Visibility Procedure are Requirements for

the Airport Authorities (i.e. HK Airport).

Question 5

513- Where can we Find LVO Minima and Which One are Approved for KA Use?

(8.4.2)

Answer 5

LVO Minima can be Found on:

• CAT 2/3 Plates
• Approach Charts
• Port Page

Please Note:

Only the Port Page Minima shall be Used.

Question 6

514- For a CAT 2 APP,

Why is the published DH may vary?

(8.4.2)

Answer 6

• The MIN ALT specified is Above RWY Threshold,

* The Published DH may be Lower or Higher than 100 Ft

due to Undulating Terrain at DH.

Question 7

515- For a CAT 2:

What is…

1) The DH?
2) Controlling/Advisory?
3) Visual references?
4) Crosswind Limit?
(8. 4.2)

Answer 7

1) DH 100 Ft
2) Controlling:

RVR for Touchdown Zone (TDZ) RVR and Midpoint (MID)

• Advisory:

RVR for Rollout (RO) and shall be Considered If

Relevant.

3) Approach Environment and Threshold
4) For Wind: Aircraft Approved LVO Limit.

Question 8

516- For a CAT 3A:

What is…

1) The DH?
2) Controlling/Advisory?
3) Visual references?
4) Crosswind Limit?
(8. 4.2)

Answer 8

1) DH 50 Ft
2) Controlling:

RVR for Touchdown Zone (TDZ) RVR and Midpoint (MID)

Rollout (RO) RVR IF MID RVR is temporally U/S

• Advisory:

RVR for Rollout (RO) and shall be Considered If Relevant

3) 3 Centreline Lights
4) For Wind: Aircraft Approved LVO Limit.

Question 9

517- For a CAT 3B:

What is…

1) The DH?
2) Controlling/Advisory?
3) Visual references?
4) Crosswind Limit?
(8. 4.2)

Answer 9

1) DH 00 Ft (‘NO’ in the MCDU)
2) Controlling:

The Touchdown Zone (TDZ) RVR, Midpoint (MID) RVR

and Rollout (RO) RVR (75 m each)

• If One Transmissometer is U/S, the 2 Others can be

Used and Operation Continued

3) Not required
4) For Wind: Aircraft Approved LVO Limit.

Question 10

518- What is Specific about RVR and LVO Approach?

(8.4.2)

Answer 10

• RVR must be Available for ALL LVO Approaches
• Visibility shall NOT be Factored to an Equivalent RVR

for Any LVO Ops.

Question 11

519- Where to Find All the Information about Cat 2, 3A, 3B on the Table?

(8.4.3)

Answer 11

All Weather Operations (AWO)

(Low Visibility Operations & Procedures)

(Minima)

Chapter 8.4.3 P 209.

Question 12

520- What Kind of Approach can be Performed with No Visual Reference for Landing “0 Ft” DH?

(8.4.4)

Answer 12

A CAT 3B

• Visual References are only Required After

Nose Wheel Touchdown.

Question 13

521- For an LVO what shall be Reviewed Before Hand?

(8.4.5)

Answer 13

The Commander shall ensure the following are Reviewed:

• The Relevant Port Page Prior to a LVO
• The QRH C/L “CP/LVO” & “CP/LVP”.

Question 14

522- What “Pilot’s Help” System is Mandatory to be Used by the Aircraft for CAT 3A / 3B?

(8.4.6)

Answer 14

The Auto-Thrust System in Approach Mode is Mandatory.

Question 15

523- What are the Airport’s Requirements to consider Before Proceeding for a LVO Approach?

(8.4.7)

Answer 15

• The commander must Make Sure that LVP are In Force
• A Clearance to Fly a CAT 2 / 3 Approach is Considered

Confirmation that LVP are In Force

Please Note:

Due to High Traffic Density, ATC might Not Approve a Request for a CAT 3 Approach if the Conditions are CAT 2.

Question 16

524- What are the Mandatory RVR reporting related to Distance / Timing?

(8.4.8)

Answer 16

• If RVR < 800 m

* Any Changes of 50 M Not Exceeding 30 sec. Delay

• If RVR < 400 m

* Any Changes of 25 M Not Exceeding 15 sec. Delay.

Question 17

525- What will be a Failed or Downgraded Equipment Effect on the Approach?

(8.4.9)

Answer 17

If the RVR is Below the “New Minima” for the Downgraded Equipment the Approach Cannot Continue below 1000 AAL

i.e. At 700 Ft –> Go Around.

Question 18

526- How often an LVO Approach shall be Practice?

(8.4.10)

Answer 18

• Minimum of 1 LVO Approach + Auto-Land Between PC.

Question 19

527- What are the Minimum Criteria for LVO Approach Practice?

(8.4.10)

Answer 19

• Visibility ≥ 5K , Ceiling ≥ 1000 Ft
• Minima Present on Port Page for CAT 2 / 3A / 3B

* CAT 1 Auto-Land does Not Count as a LVO practice.