Ch.10 Aeronautical Info and MET Flashcards by Sanad Saudi

Which countries have exceptions to AIRAC effective date and time? (Other than 0000 UTC on effective date)

UAE OM-C 10.1.3.1 referring to LIDO 1.1.9.4

Australia, China, Korea (1600 Day before)
Canada and USA (0901 UTC)
Japan (1500 Day before)

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How should crew go around selecting a nav database when changeover is imminent?

UAE OM-C 10.1.3.2

If departing before 00:00UTC us current cycle
If departing after 00:00 UTC on new AIRAC date use new database

with due consideration of non STD validity start dates LIDO 1.1.9.4

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If there is a discrepancy between company approved WX data and Lido/mPilot WX, which one takes precedence?

UAE OM-C 10.1.3.3.2

Company

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What should pilots consider when using AMM Lido charts and chart NOTAMS to supplement AGC/APC charts?

Airport Moving Map

UAE OM-C 10.1.3.3.4

Should any conflict arise, AGC/APC charts may be more updated than AMM so they shall take precedence, and chart NOTAMS take higher precedence over all chart published informtaion.

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Do Lido flightplans consider the Nav DB changeover?

UAE OM-C 10.1.3.4

Yes, they will reflect the new information from once the flight is planned to cross 00:00 UTC on the new cycle date on the same flight plan that starts with the old Nav DB.

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Where may a pilot find the overflying indeces?

UAE OM-C 10.1.4

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What are CCI briefings? ;and,
What takes precedence CCI or Lido?

Company and Crew Information

UAE OM-C 10.1.6.1

Charts that provide crew additional non exhaustive list of threat and operational based information alongside a summary of operational, legal and economical highlights. They are guidlines and should not override good airmanship

Lido takes precedence

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What is the main input for CCI updates?

UAE OM-C 10.1.6.3

PSR

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Where may a pilot find the legend to decode the EK-OFP

UAE OM-C 10.1.7.1.1

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Decoding LIDO OFP

Elaborate on item 8

UAE OM-C 10.1.7.1.4

Company Route, or,
MFT: Min Fuel
MTT: Min Time
MCT: Min Cost
MDT: Min Distance
DEFRTE: Dispatcher Defined
NAT B: Designated OTS Track

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Elaborate on 11

UAE OM-C 10.1.7.1.4

A380 En-Route Reclearance

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Elaborate on 12

UAE OM-C 10.1.7.1.4

OFP 5/0/0
1st number is OFP Sequence
2nd Number are RCF DP points with zero being RCF not utilized
3rd is ETOPS with 0 non ETOPS

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Elaborate on 13

UAE OM-C 10.1.7.1.4

Time of WX prognosis in OFP calculation; 6-24 UTC. It is based on the STD+ET+ETA ALTN

WAFS WX

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How often are EK-OFP FCST updated and what are their validity?

UAE OM-C 10.1.7.1.4

FCST are updated on 3hr intervals valid 36 hrs each.

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At what intervals are upper wind data validated into Lido and are they used on the spot?

UAE OM-C 10.1.7.1.4

Every 6 hours starting from 00:00UTC
They can only ne uploaded to FMS after 4:30hrs delay to complexity of calculations required

Basically 04:30 - 10:30 - 16:30 - 22:30 UTC

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Elaborate on item 14

UAE OM-C 10.1.7.1.4

Calculated T/O Time used by Eurocontrol IFPS

Integrated Initial Flight Plan Processing System

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What does OFP Trip Fuel consider?

UAE OM-C 10.1.7.1.4

Continuous CLB to TOC, CRZ, STEP CLB, DES, LAND at constant Mach

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What are the available contigency scenarios under 17

UAE OM-C 10.1.7.1.4

Statistical (CONT 99,95,90)
5% or 3%
CONT 20 MINS
MIN/MAX CONT
CONT (RCF Procedure)

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What does LIDO OFP consider when calculating ALTN Fuel?

UAE OM-C 10.1.7.1.4

Lido selects least fuel ALTN using CI=0 without Contingency

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What are the conditions for FRSV on Lido OFP?

UAE OM-C 10.1.7.1.4

30 min @ 1500’ over the ALTN under ISA and anticipated weight

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What are the holding conditions in Lido OFP fuel calculations?

UAE OM-C 10.1.7.1.4

Avg. at FL 150

What does taxi fuel consider?

UAE OM-C 10.1.7.1.4

It is the statistical TAXI fuel at the given AD including APU use and engine start

What is the range of the CID on the OFP? And define VSOPS CID

UAE OM-C 10.1.7.1.4

Cost index 10-250.
VSOPS is triggered by arrival delays and is purely an opertaional cost index that speeds a flight up if late by 5+ mins and slows it down if early by 15+ min.

Variable Speed Ops

VSOPS reverts back to default CID if flight is delayed more than 5hrs

What are TRM and ITT on items 73 and 74?

UAE OM-C 10.1.7.3.1

TRM: OB Magnetrick TRK
ITT: OB Initial True TRK

Elaborate on items 76 and 77 ## Footnote UAE OM-C 10.1.7.1.4

Wind is 230º/021kts SR/TDEV are Shear rate and delta ISA So the Shear rate is 02 and ISA +12

Define wind shear rate in OFP? ## Footnote UAE OM-C 10.1.7.1.4

Change of wind speed per 1000'

What is the MORA on lido nav log OFP base on? ## Footnote UAE OM-C 10.1.7.1.4

10 nm on either side of route centerline

What do the + and = signs mean on the Nav lop? ## Footnote UAE OM-C 10.1.7.1.4

"+" Compulsory reporting point "=" FIR Boundary

Explain the relationship of ETA ATA RTA ## Footnote UAE OM-C 10.1.7.1.4

* ETA is Airborne time + accumulated sector times (STM) * ATA is the Actual time of arrival over a waypoint * RTA is ATA + STM

Define the RCF Procedure ## Footnote UAE OM-C 10.1.7.6.1

A flight planned using Reduced Contingency Fuel Procedure via a decision point along the route. The ability to plan a flight with a lesser amount of fuel than the normal 5% (3%)-CONT provided a suitable Enroute Alternate (ERA) is nominated. The procedure may be required if the aircraft cannot carry the normal fuel load due to tank capacity limitation or for payload optimisation.

Decipher this RCF Procedure ## Footnote UAE OM-C 10.1.7.1.4

* Enroute Alternate WMKK * Decision Point IGOGU followed by route to ERA * TRI-WMKK is Trip fuel from DEP to ERA = 55863 * Contingency for this RCF segment is 5 percent of the Trip to ERA = 2793 * TOT is Above TRIP+CONT+FRSV * MIN DP FUEL is self explanatory

What is the time parameter used for NOTAMs on Lido generated OFP? ## Footnote UAE OM-C 10.1.7.9.4.6

STD+TRIP+ALTN+3hrs

Decipher these Notam identifiers: 1. 1A68/24 VALID 2410230200 –... 2. CO288/18 3. CC104/00 4. CA110/22 ## Footnote UAE OM-C 10.1.7.9.4.1

1. Class 1 NOTAM series A number 68 year 2024 Valid from 23 October 2024 until... 2. CoNOTAM 288 of 2018 3. Chart NOTAM 104 of 2000 4. AMDB* NOTAM 110 of 2022 | *Aerodrome Mapping Database (OANS)

What determines if NOTAMs and WX infor for an individual flight sceanrio to appear on the OFP? ## Footnote UAE OM-C 10.1.7.9.4.2

They only appear in the briefing package when: * AD is authorized for the A/C type * The flight path touches the system-defines aerodrome perimeter

What does the maximum altitude dashed line represent? ## Footnote UAE OM-C 10.1.7.9.6.5

The max possible FL with 1.3G buffet margin

What does SA anf FT stand for under the lido OFP combined WX breifing package?

SA= Surface Actual (METAR) FT= Long Forecast | T from the french for "Le Temps" meaning weather

What limitation apply to flying in areas where cruise level SAT increase the likelihood of fuel freezing? ## Footnote UAE OM-C 10.1.8

Flights shall not be dispatched to fly in areas of -65ºC or colder for longer than 90 minutes. The comments section will clearly depict the mitigation dispatch took to avoid such scenario.

Where may a pilot find the legend to brush up on decoding MET and GRF data and what addtional considerations must be given when decoding MET? ## Footnote UAE OM-C 10.2.1

LIDO 1.3 Chapter, but pilots should be aware of deviations from ICAO MET standards and must refer to RSIs and CRARs (e.g. US and Canada MET)

What WX prompts **shall** make pilots alert for possibility of windshear during approach and landing? ## Footnote UAE OM-C 10.2.2.1

* VCTS of 15nm or less * Frontal speeds > 30kt * Strong temperature inversions * High base convective clouds w/ high surface temp and dew point spread. * LLWAS > 20kts * PIREP > 15kts ## Footnote Dew point > 10ºC, Temp/Dew point Spread > 16ºC

What sort of WX activity **preclude** a pilot from conducting an approach, landing or takeoff? ## Footnote UAE OM-C 10.2.2.1

* Microburst Alert * Horizontal separation of at least 3nm cannot be achieved from severe WX when A/C is < 1000' AGL

How long do WS/Microburst advisories be broadcast on ATIS after the event? ## Footnote UAE OM-C 10.2.2.1.2

20 mins

How accurate are runway specific WS/Microburst alerts generated by LLWAS and TDWR | Low level WS Alerting System / Terminal Doppler WXR ## Footnote UAE OM-C 10.2.2.1.2

> 85%

What shall a commander issue an AIREP to ATC? ## Footnote UAE OM-C 10.2.2.2

"AIREP SPECIAL" **shall** be given to ATC when SIGMET is encountered or observed **and** is likely to affect the safety of other A/C. ## Footnote UAE OM-C 10.2.2.1.2 has the comprehensive list

An Illustration of the Departure/Arrival Hazardous Decision Aid Flow Chart. Use it when ever in doubt ## Footnote UAE OM-C 10.2.2.3

How longs does average W/S last? ## Footnote UAE OM-C 10.2.2.3

10-15min

According to OM-C what constitutes as "Severe WX" when assessing viability of the approach or departure? ## Footnote UAE OM-C 10.2.2.3

* ATC reporting echo 5 or greater * +TSRA * Radar echo with a shadow behind * Magenta radar return * Steep/asymmetrical wx radar gradient * Notches, hooks or scalloped WXR returns

What are the two dispatch scenarios for operating in areas of reported volcanic ash ? ## Footnote UAE OM-C 10.2.2.4.2

1. DAY **and** VMC; or, Low/Blue concentraition in Night **or** IMC 2. In Night or IMC in areas that report above low/blue ash concentration

In what areas should pilots fly in when operating in areas of reported volcanic ash activity when in **DAY and VMC** or **Low/Blue Ash Concentration in IMC/Night** | Dispatch Scenario 1/2 ## Footnote UAE OM-C 10.2.2.4.2

Permitted to operate **above, below and within.** **But not** in discernible ash | Crew **shall** make a techlog entry

In what areas should pilots fly in when operating in areas of reported volcanic ash activity when in **Night or IMC** in areas with reports of ash above Low/Blue concetnrations? | Dispatch Scenario 2/2 ## Footnote UAE OM-C 10.2.2.4.2

Permitted to operate above and below **but not** within the reported area whilst keeping a 5000' vertical distance from reported levels | Crew **shall** make a techlog entry

How may crew be able to detect a volcanic ash encounter? ## Footnote UAE OM-C 10.2.2.4.2

* Poor radio reception * Smoke/Dust in cabin/cockpit * Acrid odour * Multiple engine malfunctions * St. Elmo's fire and orange glow around engine inlets

What are the signs of Ozone encounters in the cabin air and how should crew act on it? ## Footnote UAE OM-C 10.2.2.4.2

An acrid smell or taste in the cabin that cause coughinh on deep inhalation, eye irritation and headache. Use 100% oxygen and descend **below** the tropopause

Ch.10 Aeronautical Info and MET Flashcards

Rev 175