Low vis FOM

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What RVR condition generally necessitates low visibility procedures at aerodromes authorized for CAT ll/lll operations?

RVR below 300 metres

RVR below 500 metres

RVR below 400 metres and/or the cloud base falls below 200feet. (correct)

RVR below 200 metres

What is the minimum cloud base height that triggers low visibility operations?

250 feet

200 feet (correct)

150 feet

300 feet

Who is responsible for establishing airfield operating minima?

Airport authority (correct)

Aircraft operators

International aviation organizations

National aviation authorities

What must be provided for an instrument approach and landing to be conducted in less than 800m visibility?

RVR information Signup and view all the answers

What is required for crews to maintain currency in CAT II/III operations?

carrying out a minimum of 02 CAT II/III approaches in the simulator during recurrent training/check. Signup and view all the answers

What should be done if failures are announced before the approach ban point?

The approach shall be discontinued. Signup and view all the answers

What should be assessed before attempting another approach after a failure announcement?

The effects of the failures Signup and view all the answers

For CAT II and CAT III operations, what combination of deficiencies is not permitted?

Deficiencies in both runway lights and RVR assessment equipment Signup and view all the answers

If there is a failure other than ILS, what aspect is affected?

Runway Visual Range (RVR) Signup and view all the answers

What must be obtained before attempting a CAT II/III approach?

ATC clearance Signup and view all the answers

What is the RVR condition for LVTO take-off?

Less than 400m Signup and view all the answers

What is a required action during flight preparation for low visibility conditions?

Check runway lighting Signup and view all the answers

Which conditions necessitate the requirement of a take-off alternate airport?

When departure airport RVR is less than CAT I minima Signup and view all the answers

What is a recommendation during low visibility operations?

Perform flight control checks when stationary Signup and view all the answers

Which thrust setting should be used for take-off according to the procedures?

TOGA thrust Signup and view all the answers

What should be included in the Low Visibility Take-off Briefing?

Items in QRH-ALO-LVO Signup and view all the answers

When is it approved for automatic rollout during CAT II/III approaches?

On dry and wet runways Signup and view all the answers

What must the Pilot in Command do at decision height (DH) during a low visibility approach?

Be ready for a go around without judgments Signup and view all the answers

Study Notes

All Weather Operations (AWO)

Low visibility procedures apply at aerodromes authorized for CAT II/III operations when RVR is below 400 meters and/or cloud base is below 200 feet.
SriLankan Airlines' low visibility minima are approved by the CAASL and published in the Flight Operations Manual (FOM).
Low visibility operations (LVO) necessitate specific crew qualifications, procedures, aircraft equipment, and state approval.
Crew competency is certified by the flight operations department. Crews must maintain currency by completing a minimum of two CAT II/III simulator approaches during recurrent training/check.
Failures in ground equipment before the approach ban point lead to approach discontinuation. Assessment of failure impact is mandatory before attempting a subsequent approach.
After the ban point, the commander may continue the approach if failures occur.
Multiple runway light failures (beyond those specified) are unacceptable.
Runway/approach light deficiencies are assessed separately.
CAT II/III operations, combined runway light and RVR assessment equipment failures are forbidden.
ILS-unrelated failures only affect RVR; DH (Decision Height) isn't impacted.
ATC clearance is required for CAT II/III approaches. CAT II/III approaches must not be attempted without clearance. Announcements are made on ATIS when the airfield has CAT II/III operations in process.
Flight crew shall ensure the aircraft does not pass the CAT II/III holding point until clearance is received to enter the runway.
Low Visibility Procedures and task sharing are detailed in the FCOM PRO-NOR-SOP and FCTM-PR-NP-SOP.
Pre-flight planning for low visibility operations should include reviewing NOTAMS for CAT II/III requirements, confirming runway and approach lighting, radio navigation aid availability, and RVR equipment availability.

Airfield Operating Minima

Airfield operating minima are established by airport authorities and published on approach charts.
Each state approves SriLankan Airlines' requests for specific minima, issuing a letter of approval.
Lido publishes approach charts based on the approved category and minima.
Instrument approaches and landings are not permitted in less than 800 meters visibility unless RVR data is available.
Operator's minima are the lowest allowed minima, approved by the regulatory authority.

Low Visibility Take-off (LVTO)

Take-off with RVR less than 400 meters is considered LVTO.
Maximum RVR for takeoff is largely independent of aircraft type and equipment, except in very low RVR conditions.
When weather conditions are below CAT I minimums, a takeoff alternate within one hour at one engine inoperative speed is normally required (refer to 10.1.4).
Performing a flight control check when the aircraft is stationary is recommended.
Intersection takeoff is not recommended during LVO.
The Pilot in Command (PIC) will perform the takeoff and landings in low visibility conditions, including practice autolands in CAT I conditions.
Landing Lights and Strobe Lights shall be switched OFF for Take-off.
TOGA thrust shall be used for Take-off.
The “Low Visibility Take-off Briefing” shall be completed after performing the “Take-off Briefing” and shall include the items in QRH-ALO-LVO as a minimum.

Briefings

In addition to the normal approach briefing the items in QRH-ALO-LVO shall be included as a minimum for CAT II/III Approach Briefing.
Before starting the approach: Verify Low Visibility Procedures in force (ATIS or ATC). Flight Crew procedures shall be as per FCOM-PRO-NOR-SOP and FCTM-PR-NP-SOP. Automatic rollout performance is only approved on dry and wet runways.

Visual References

Visual references at DH are detailed in 10.1.5. The DH is the lower limit of the decision zone during which the PIC will be assessing the visual references in limiting conditions. The PIC should be prepared for a go-around but without pre-established judgment. The PIC should make a decision according to the quality of the approach and how the visual references develop as DH is approached.

Studying That Suits You

Use AI to generate personalized quizzes and flashcards to suit your learning preferences.

Description

Test your knowledge on All Weather Operations (AWO) and airfield operating minima. This quiz covers low visibility procedures, crew qualifications, and operating minima regulations for SriLankan Airlines. Ensure you're up-to-date with the requirements for safe operations in challenging weather conditions.