GEN Flashcards
On a SIGWX chart, what does this symbol signify?

Widespread sand storm or dust storm
GEN 3.5 : 23
What would you expect to be received in terms of ident and GP indications where the LLZ is out of service?
The GP will not be radiated and there will be no identifier.
GEN 3.4 : 2.8.2
On a SIGWX chart, a jetstream is annotated with 220/400 next to the flight level. What does this mean?
These indicate the flight levels where the wind is greater than 80 knots. This is only annotated where the jetstream win exceeds 120 knots.
GEN 3.5 : 23
On a SIGWX chart, what does this symbol signify?

Hail
GEN 3.5 : 23
On a SIGWX chart, what does this symbol signify?

Freezing precipitation
GEN 3.5 : 23
What does MI mean?
Shallow
GEN 3.5 : 13
What constitutes a “low visibility operation”?
An approach with minima less than precision Cat I, or a take-off with less than 550m visibility.
GEN 2.2 - 16 Definition of “Low visibility procedures”
What navigation equipment is required for RPT aircraft?
1 GNSS and 1 VOR, or 2 GNSS (TSO-145 or later), or 1 multisensor unit including IRS and GNSS and approved by CASA. If flight is conducted with reference to ground-based aids, the aircraft requires 2 VORs and 1 DME or GPS.
GEN 1.5 : 2.1, 2.2
Where a weather report indicates rainfall, what do the two figures represent?
Rainfall recorded 10 minutes prior to the observations time, and rainfall recorded since 0900 local.
GEN 3.5 : 12.21.1
What does RA mean?
Rain
GEN 3.5 : 13
What defines “light” windshear?
Shear causing minor excursions from flight path and/or speed.
GEN 3.5 : 6.3.1.2
On a SIGWX chart, what does this symbol signify?

Severe squall line
GEN 3.5 : 23
What radio communication equipment is required for RPT aircraft?
VHF and HF, or 2 VHF; at least one must be capable of maintaining continuous communication with ATS at all stages of flight, including emergency or abnormal operations.
GEN 1.5 : 1.1, 1.4
What does GS mean?
Small hail pellets
GEN 3.5 : 13
In an RVR report, what does R27/0300D indicate?
An average RVR of 300m, with a downward trend over the averaging period, on runway 27.
GEN 3.5 : 12.11.3
What does BR mean?
Mist
GEN 3.5 : 13
On a SIGWX chart, what symbols represent wind speed?
- Pennant corresponds to 50 kts
- Feather corresponds to 10 kts
- Half feather corresponds to 5 kts
GEN 3.5 : 23
An aircraft with an unservicable weather radar system must not depart under what circumstances?
Available forecasts indicate probability of thunderstorms or cloud formations associated with severe turbulence anywhere along the route to be flown, including to a planned alternate.
GEN 1.5 : 4.2.1
What would you expect to be received in terms of ident and LLZ indications where the GP is out of service?
If the GP is radiating test signals, the LLZ will not be radiated; If the GP is switched off, the LLZ may be radiated with the ident.
GEN 3.4 : 2.8.2
On a SIGWX chart, what does this symbol signify?

Mountain waves
GEN 3.5 : 23
For an aircraft, what constitutes being “in the vicinity”?
Within 10 nm and at a height that could result in conflict with operations at the aerodrome.
GEN 2.2 - 15 Definition of “In the Vicinity”
With respect to weather reports, what does VC mean?
Weather in the vicinity of the aerodrome (between 8 and 16 km).
GEN 3.5 : 12.12.5
What is the rated coverage of a LLZ?
At 2,000’ AGL and within 10 degrees of course line: 25nm
Below 5,000’: 30nm
5,000’ and above: 50nm
GEN 1.5 : 2.3
On a SIGWX chart, what does this symbol signify?

Tropopause level
GEN 3.5 : 23
On a SIGWX chart, what does this symbol signify?

Moderate turbulence
GEN 3.5 : 23
When must a broadcast be made during TIBA procedures?
- 10 minutes before entering the designated airspace;
- 10 minutes prior to crossing a reporting point;
- 10 minutes prior to joining or crossing an ATS contingency route;
- At 20 minute intervals between distant reporting points;
- 2 to 5 minutes before a change in flight level;
- At the time of change of flight level
- At any other time considered necessary.
GEN 3.3 : 7.4.1
What does UP mean?
Unknown precipitation type (from weather sensor)
GEN 3.5 : 13
What two phrases should be used to inform ATC of the start and end of a windshear procedure?
“Windshear escape” and “Clear of windshear”.
GEN 2.2 : 2.7.7.7
What does PO mean?
Dust devils
GEN 3.5 : 13
What phraseology should be used during a TCAS RA?
“TCAS RA” and “Clear of conflict, returning to …” or “Clear of conflict, resumed …”
GEN 3.4 : 5.1.1
For precision approaches, what is the typical decision height and RVR which applies for each category?
Cat I: DH not lower than 200’, visibility not less than 800m or 550m RVR;
Cat II: DH not lower than 100’, RVR not less than 300m;
Cat IIIA: DH less than 100’ or no DH, RVR not less than 175m;
Cat IIIB: DH less than 50’ or no DH, RVR not less than 50m;
Cat IIIC: No DH or RVR limitations.
GEN 2.2 - 15 Definition of “Instrument Runway”
What defines “moderate” windshear?
Shear causing significant effect on control of the aircraft.
GEN 3.5 : 6.3.1.2
What does FG mean?
Fog
GEN 3.5 : 13
A pilot using RNAV INS must notify ATC if the time between updates exceeds:
CTA other than OCA: 3 hours for single units, 5 hours for multiple units; OCA CTA: 5 hours for single units, 12 hours for multiple units.
GEN 1.5 : 8.3.1
What does SQ mean?
Squalls
GEN 3.5 : 13
What does HZ mean?
Haze
GEN 3.5 : 13
What is the maximum range of GBAS deviation information for GLS?
23nm from the GBAS site.
GEN 1.5 : 2.3
What defines “strong” windshear?
Shear causing difficulty in keeping the aircraft to desired flight path and/or airspeed.
GEN 3.5 : 6.3.1.2
What is the difference between “local standby” and “full emergency”?
Local standby only activates airport-based services, and will be the minimum response to a PAN call. It is appropriate where an aircraft has some defect, but not that would involve any serious difficulty in effecting a safe landing.
Full emergency activates more than just airport-based services. It is applicable where an aircraft is in such trouble that there is a danger of an accident.
GEN 3.6 : 6.2 - 6.3
On a SIGWX chart, what does this symbol signify?

Convergence line
GEN 3.5 : 23
An aircraft with an unservicable GPWS may not depart under what circumstances?
Where facilities are available to repair or replace the GPWS, or in any case if the GPWS has been unservicable for a period exceeding 24 hours.
GEN 1.5 : 5.2
What does DU mean?
Dust
GEN 3.5 : 13
On a SIGWX chart, what does this symbol signify?

Thunderstorm
GEN 3.5 : 23
On a SIGWX chart, what does this symbol signify?

Moderate Icing
GEN 3.5 : 23
On a SIGWX chart, what does this symbol signify?

Drizzle
GEN 3.5 : 23
What does FZ mean?
Freezing
GEN 3.5 : 13
On a SIGWX chart, what does this symbol signify?

Severe turbulence
GEN 3.5 : 23
What does DS mean?
Dust storm
GEN 3.5 : 13
On a SIGWX chart, what does this symbol signify?

Mountain obscuration
GEN 3.5 : 23
In an RVR report, what does R35/0900 indicate?
An RVR value of 900m on runway 35.
GEN 3.5 : 12.11.2
In a grid point wind and temperature forecast, what do the number values mean?
- The first two indicate the wind direction (true)
- The next three indicate the wind speed
- The last two indicate the temperature (negative degrees celsius)
GEN 3.5 : 21.3
On a SIGWX chart, what does this symbol signify?

Widespread mist
GEN 3.5 : 23
On a SIGWX chart, what does this symbol signify?

Tropopause low
GEN 3.5 : 23
On a SIGWX chart, what does this symbol signify?

Widespread smoke
GEN 3.5 : 23
What does FU mean?
Smoke
GEN 3.5 : 13
When can the estimate of the next position be omitted from an AIREP?
In an AIREP SPECIAL, where the report is made other than at a planned reporting point.
GEN 3.5 : 11.1.2
What does PL mean?
Ice pellets
GEN 3.5 : 13
What should a pilot do in the event of a TCAS RA?
- Immediately conform to the RA indication, unless doing so would jeopardise the safety of the aircraft;
- Limit alterations of the flight path to the minimum extent necessary to comply with the RA; and,
- Notify ATC, as soon as permitted by workload, wherever an RA requires a deviation from the current clearance.
GEN 1.5 : 7.2.2
On a SIGWX chart, what does this symbol signify?

Tropical cyclone
GEN 3.5 : 23
On a SIGWX chart, what does this symbol signify?

Radioactive materials in the atmosphere
GEN 3.5 : 23
When are category B TAFs issued, and how long are they valid?
Issued at 00, 06, 12 and 18 UTC. Valid for 12 or 18 hours.
What conditions apply to an aircraft whose weather radar becomes unservicable during a flight?
The aircraft must avoid penetration of any cloud formation likely to be associated with severe turbulence.
GEN 1.5 : 4.2.2
What does TS mean?
Thunderstorms [with]
GEN 3.5 : 13
What defines “severe” windshear?
Shear causing hazardous effects to aircraft controllability.
GEN 3.5 : 6.3.1.2
What does PR mean?
Aerodrome partially covered (used only in conjunction with fog)
GEN 3.5 : 13
On a SIGWX chart, what does this symbol signify?

Tropopause high
GEN 3.5 : 23
What does FC mean?
Funnel clouds
GEN 3.5 : 13
What is the format of an AIREP POSITION?
- AIREP [POSITION]
- Callsign
- Position
- Time
- Flight level
- Next position at time
- If requested or appropriate, Following Point (next waypoint)
GEN 3.4 Appendix 2
On a SIGWX chart, what does this symbol signify?

Volcanic eruption
GEN 3.5 : 23
On a SIGWX chart, what defines the beginning or end of the jetstream?
A wind speed above 80 knots.
GEN 3.5 : 23
On a SIGWX chart, what does this symbol signify?

Inter-tropical convergence zone
GEN 3.5 : 23
On a SIGWX chart, what does this symbol signify?

Widespread fog
GEN 3.5 : 23
On a SIGWX chart, what does this symbol signify?

Widespread haze
GEN 3.5 : 23
What is the difference between ISOL, OCNL, FRQ and EMBD?
ISOL - isolated, i.e. individual
OCNL - occasional, i.e. well separated
FRQ - frequent, i.e. little or no separation
EMBD - embedded, embedded in other layers or concealed by haze
GEN 3.5 : 23
What does an RNP value indicate?
A distance in nm which the flight should be within for at least 95% of the total flying time.
GEN 2.2 - 21 Definition of “RNP Type”
What does it mean where an RVR value is preceded by the letter “M”?
The RVR value is less than the minimum which can be assessed by the system in use, or is less than 50m.
GEN 3.5 : 12.11.8
What does SH mean?
Showers [of]
GEN 3.5 : 13
When are international/cat A TAFs issued, and how long are they valid?
Issued at 00, 06, 12, and 18 UTC. Valid for 24 or 30 hours.
On a SIGWX chart, what does this symbol signify?

Severe Icing
GEN 3.5 : 23
What does SS mean?
Sand storm
GEN 3.5 : 13
What does SG mean?
Snow grains
GEN 3.5 : 13
RVSM allows what separation standard at what altitudes?
1,000’ separation from FL290 to FL410 inclusive.
GEN 1.5 : 9.1
What does DR mean?
Drifting
GEN 3.5 : 13
What does BL mean?
Blowing
GEN 3.5 : 13
On a SIGWX chart, what does this symbol signify?

Snow
GEN 3.5 : 23
On a SIGWX chart, what does this symbol signify?

Shower
GEN 3.5 : 23
A PRM provides ILS course monitoring for runways separated by less than:
1,525m.
GEN 2.2 - 20 Definition of “Precision Runway Monitor”
What does CAVOK mean?
- Visibility of 10km or more;
- No significant cloud: no cloud below 5000’or the highest 25nm MSA, whichever is greater, and no CB or TCU at any height;
- No significant weather.
GEN 3.5 : 12.15.1
In a TTF, what does NOSIG mean?
No significant changes to the wind, visibility, weather or cloud, are expected to occur during the validity of the TTF.
GEN 3.5 : 17
On a SIGWX chart, what does this symbol signify?

Severe sand or dust haze
GEN 3.5 : 23
What does DZ mean?
Drizzle
GEN 3.5 : 13
What should a pilot do in the event of a TCAS TA?
Use all available information to prepare for appropriate action if an RA occurs, including:
- attempt to establish visual contact; and
- change the flight path only if a collission risk is established visually.
GEN 1.5 : 7.2.1
What is the rated coverage of a VOR?
Below 5000’: 60nm
Below 10,000’: 90nm
Below 15,000’: 120nm
Below 20,000’: 150nm
20,000’ and above: 180nm
GEN 1.5 : 2.3
In an RVR report, what does R07L/0200V0300 indicate?
A one-minute mean minimum RVR of 200m to a one-minute mean maximum RVR of 300m on runway 07L.
GEN 3.5 : 12.11.4
When should a Short AIREP be reported and what does it comprise?
When requested by ATC:
- ATS Station
- Callsign
- Short AIREP
- Position and time
- Enroute ADEP to ADES
- Weather report
GEN 3.5 : 11.2.2
What additional information applies to an AIREP SPECIAL?
- Temperature
- Spot wind (if necessary at position (lat/long))
- If encountered within 10 minutes, turbulence
- If encountered within 10 minutes, icing
- If appropriate, other information, e.g. thunderstorms, cloud type/level, radar echoes, or differences between forecast and observed conditions.
GEN 3.4 Appendix 2
What does SA mean?
Sand
GEN 3.5 : 13
What does VA mean?
Volcanic ash
GEN 3.5 : 13
On a SIGWX chart, what does this symbol signify?

Rain
GEN 3.5 : 23
What does it mean where an RVR value is preceded by the letter “P”?
The RVR value exceeds the maximum which can be assessed by the system in use, or is greater than 2000m.
GEN 3.5 : 12.11.6
What does SN mean?
Snow
GEN 3.5 : 13
What does GR mean?
Hail
GEN 3.5 : 13
What are the prescribed TIBA frequencies?
At or above FL200: 128.95
Below FL200: 126.35 (or the normal VHF frequency in class G airspace)
GEN 3.3 : 7.2.2
If, under TIBA procedures, an iminent collision risk occurs which cannot be managed through TCAS or right of way provisions, a pilot should:
- Unless an alternative is more appropriate, immediately descend 500’ if at or below FL410, ar 1000’ if above FL410;
- Display all available aircraft lighting;
- As soon as possible, reply to the broadcasting station the action being taken;
- Notify the action on the appropriate TIBA frequency;
- As soon as possible, resume normal flight level and notify this on the appropriate TIBA frequency.
GEN 3.3 - 7.7.1
What does BC mean?
Patches
GEN 3.5 : 13