ENR Flashcards
When is it permissible to automatically change comms to tower frequency on an approach?
- The aircraft is established on final and has been cleared for the approach;
- Frequency congestion has not allowed the pilot to report established or otherwise obtain a clearance to transfer to tower;
- The aircraft is not greater than 4 nm from touchdown.
ENR 1.6 : 3.15
What does a steady green light signal mean to an aircraft in flight?
Authorised to land if pilot satisfied no collision risk exists.
ENR 1.5 : 13.1
A missed approach procedure is designed to provide a minimum obstacle clearance of:
100’ at a gradient of 2.5%.
ENR 1.5 : 1.10.1
What actions should the pilot take if in RVSM airspace and the primary altimeter systems disagree or diverge?
If the altimeters diverge by more than 200’:
- Attempt to determine the defective system through established trouble-shooting procedures or by comparing with the standby altimeter;
- If the defective altimeter can be determined, proceed as if one altimeter had failed. If the defective altimeter cannot be determined, proceed as if both altimeters had failed.
ENR 1.1 : 40.4.5
For a sector 1 or sector 2 entry, what timing applies?
- For a sector 1 (parallel) entry: the applicable holding time;
- For a sector 2 (offset) entry: the applicable holding time, up to a maximum of 1 minute, 30 seconds.
Both instances should respect limiting DME distances.
ENR 1.5 : 3.3.2 - 3.3.3
What is Mach Number Technique?
A term used to describe the method of clearing successive jet aircraft, operating along the same track, to maintain specified Mach numbers in order to maintain longitudinal separation.
ENR 2.2 : 1.2
What is required to conduct an ILS approach to the 800 m visibility minima?
- The aircraft must be manually flown to the minima using a flight director or approved HUDLS, or with an autopilot coupled;
- The aircraft must be equipped with a serviceable failure warning system for the primary attitude and heading reference systems;
- High intensity runway edge lighting must be available.
ENR 1.5 : 4.7.3
What speed limits apply in class G airspace?
250 kts below 10,000’.
ENR 1.1 : 66.1
What requirements apply to the use of SLOP?
- Any offset must only be used by aircraft with automatic offset tracking capability;
- The offset must be to the right, and up to a maximum of 2 nm;
- The offset may only be performed during the en route phase;
- The offset may only be applied in OCA;
- The offset must not be used in addition to other deviations or offsets (e.g. weather);
- The offset must not be applied at levels where obstacle clearance would be affected;
- If identified an aircraft may continue an offset, but must advise ATC prior to intiating or changing an offset.
ENR 2.2 : 2.2
What distance-based wake separation minima applies to a MEDIUM following a SUPER?
7 nm.
ENR 1.4 : 9.2.3
Before entering RVSM airspace, what mandatory equipment must be operating normally?
- Two independent altimetry systems;
- An SSR transponder;
- An altitude alert system;
- An autopilot with height lock.
ENR 1.1 : 40.3.1
What is the maximum speed permitted for Category E aircraft during the missed approach?
275 kts.
ENR 1.5 : 1.16.1
What is the maximum speed permitted for Category D aircraft during visual circling?
205 kts.
ENR 1.5 : 1.16.1
How is the circling area defined for each category of aircraft?
The circling area is created by drawing and joining arcs centred on the threshold of each usable runway. The arc distance is:
For Cat C: 4.2 nm
For Cat D: 5.28 nm
For Cat E: 6.94 nm
ENR 1.5 : 1.7.6
What steps should a pilot take in the event of a loss of communication?
- Try to re-establish communication by other means;
- Squawk 7600, and broadcast blind at suitable intervals on the ATS frequency and 121.5 (and 123.45 if required);
- Watch for conflicting traffic visually and by reference to TCAS;
- Turn on all exterior collision lights;
- Maintain the last speed and altitude for 60 minutes following the last failure to report over a compulsory reporting point, and then proceed as per the flight plan.
ENR 1.1 : 21.2.8
What range of speeds is permitted for Category D aircraft during the intial and intermediate part of an approach?
185 - 250 kts.
ENR 1.5 : 1.16.1
If deviation from track is required to avoid weather and a revised ATC clearance cannot be obtained, what should a pilot do?
- If possible, deviate away from an organised route or track system;
- Broadcast at suitable intervals on the frequency in use and on 121.5 callsign, flight level, position including the route designator, and intentions;
- Watch for conflicting traffic visually and by reference to TCAS;
- Turn on all exterior lights;
- For deviations greater than 10 nm, when the aircraft is approximately 10 nm from track, initiate a level change of 300’. If the aircraft deviates north, descend, if deviating south, climb;
- Continue to try to contact ATC to obtain a clearance;
- When returning to track and within approximately 10 nm of track, be at the assigned flight level.
ENR 2.2 : 1.6.2
What navigation tolerances apply before ATC must be notified?
- For LLZ or VOR, half scale deflection or more;
- For DME, 2 nm or more;
- For RNP RNAV, where ANP exceeds RNP;
- When navigating visually, 1 nm.
ENR 1.1 : 19.6.2
A missed approach must be executed if:
- During the final segment, the aircraft is not maintained within the applicable navigation tolerance;
- During an approach and below the MSA the navigation aid becomes suspect or fails;
- Visual reference is not established before reaching the MAPt or DA;
- A landing cannot be effected from the approach, unless a circling approach can be conducted;
- Visual reference is lost while circling to land.
ENR 1.5 : 1.10.1
Descent below the MDA on a straight-in approach may only occur when:
- Visual reference can be maintained;
- All elements of the met minima are achieved;
- The aircraft is continously in a position from which a landing on the intended runway can be made at a normal rate of descent using normal flight manoeuvres that will allow a touchdown within the touchdown zone.
ENR 1.5 : 1.8.2
With respect to RAIM, when must ATC be advised?
- If RAIM is lost for more than 5 minutes;
- If RAIM is not available when ATC requests a GPS distance, or where an ATC clearance or requirement based on a GPS distance is imposed;
- If the receiver is in DR mode, or experiences loss of navigation function, for more than one minute;
- Where indicated displacement from track exceeds 2 nm.
ENR 1.1 : 19.11.2
Within what time frame should an aircraft endeavour to cross a feeder fix when allocated a crossing time?
The aircraft should cross the fix at the specified time or up to 30 seconds early.
ENR 1.9 : 4.2.3
What separation minima apply for a landing aircraft?
The landing aircraft will not be permitted to cross the threshold of the runway until:
- the preceding aircraft is airborne, and has commenced a turn or is beyond a point where the landing aircraft could be expected to complete its roll or manoeuvre in the event of a missed approach;
- the preceding aircraft has vacated and is taxiing away from the runway;
- the preceding aircraft, if using a crossing runway, has stopped short or crossed the landing aircraft’s runway.
ENR 1.1 : 14.6.2
What does a flashing green light signal mean to an aircraft in flight?
Return for landing.
ENR 1.5 : 13.1
What separation is provided in class E airspace?
IFR flights are only separated from other IFR flights, and where possible, receive traffic information on VFR flights.
ENR 1.4 : 2.1.4
What climb gradients normally apply to a SID?
2.5% for obstacles, plus 0.8% obstacle clearance from zero at the departure end of the runway. Where a gradient is provided for reasons other than obstacle clearance, it does not include the 0.8% margin.
ENR 1.5 : 8.5.2 - 8.5.3
What speed limits apply in class A airspace?
No speed limits apply.
ENR 1.1 : 66.1
Obstacles above what height are required to be reported?
360’
ENR 5.4 : 1.1
What actions should be taken in RVSM airspace if the autopilot fails?
- Maintain cleared flight level;
- Evaluate the aircraft’s ability to maintain altitude through manual control;
- Assess any possible conflicting traffic;
- Alert all nearby aircraft by turning on all exterior lights and, if not in contact with ATC, broadcasting on 121.5;
- Notify ATC: “Negative RVSM” and the intended course of action.
ENR 1.1 : 40.4.8
What range of speeds are permitted for Category D aircraft during the final portion of an approach?
130-185 kts.
ENR 1.5 : 1.16.1
What is the maximum speed permitted for Category C aircraft during the missed approach?
240 kts.
ENR 1.5 : 1.16.1
How is each aircraft performance category defined?
With respect to VAT, the performance categories are:
Cat C - from 121 to 140 kts,
Cat D - from 141 to 165 kts,
Cat E - from 166 to 210 kts.
ENR 1.5 : 1.2.1
When may an aricraft be cleared for a visual approach by night?
- The pilot has established and can maintain continuous visual reference to the ground or water;
- Visibility along the flight path is not less than 5000m;
- The aircraft is within 30 nm or, if being vectored, has been assigned the MVA and given instructions to intercept final or position within the circling area.
ENR 1.1 : 12.8.1
What does a flashing red light signal mean to an aircraft on the ground?
Taxi clear of landing area in use.
ENR 1.5 : 13.1
Where a flight is planned to land at an aerodrome with electric lighting, when is an alternate required?
Provision must be made for an alternate unless:
- the aerodrome has standby power, or
- portable lights are available and a responsible person is in attendence.
ENR 1.1 : 59.4.2
What standard speed expectation applies to a SID?
Accelerate to 250 KIAS no later than 3,000’ AGL and maintain until 10,0000’.
ENR 1.5 : 8.4.3
For entry into a holding pattern, what are the three sectors for each entry?
- For a sector 1 entry (parallel): An arc from the reciprocal of the inbound to 110 degrees on the traffic side;
- For a sector 2 entry (offset): An arc from the reciprocal of the inbound to 70 degrees on the non-traffic side;
- For a sector 3 entry (direct): A semi-circle starting at 70 degrees off the inbound course on the non-traffic side.
ENR 1.5 : 3.3.1
While operating in RVSM airspace, if all primary altimeter systems fail or are considered unreliable, what should the pilot do?
- Maintain the flight level indicated by the standby altimeter at the time of failure;
- Alert nearby aircraft by turning on all exterior lights and, if not in contact with ATC, broadcasting on 121.5;
- Notify ATC: “Negative RVSM” and the intended course of action.
ENR 1.1 : 40.4.3
What bank angle are approach procedures predicated on?
The lesser of 25 degrees or rate 1.
ENR 1.5 : 1.23.1
The pilot of an aircraft not approved, or with any mandatory equipment item unservicable must advise what prior to entry into RVSM airspace?
“Negative RVSM”
ENR 1.1 : 40.3.2
An ASIR is required to be filed within what time frame?
For IRM, the matter must be reported as soon as possible by phone. For IRM and RRM, a written report must be filed within 72 hours.
ENR 1.14 : 1.2.3
What distance-based wake separation minima applies to a MEDIUM following a HEAVY?
5 nm.
ENR 1.4 : 9.2.3
Where greater than moderate turbulence impacts the ability of an aircraft to maintain the cleared flight level, what should a pilot do?
- Watch for conflicting traffic and turn on all exterior lights;
- Broadcast callsign, position, level, and nature and severity of the turbulence on 121.5 or 123.45 as a backup;
- Notify ATC as soon as possible and request a level change if necessary;
- If the CFL cannot be maintained, initiate contigency procedures to leave the assigned route.
ENR 2.2 : 1.7.1
If, following a failure of the autopilot in RVSM Oceanic class A airspace, the pilot cannot maintain the cleared flight level, what should be the next course of action?
If unable to obtain a revised ATC clearance, turn 90 degrees left or right off the assigned route, taking account of any adjacent routes.
ENR 1.1 : 40.4.9
What separation is provided in class D airspace?
IFR flights are separated from IFR and special VFR flights, and receive traffic information with respect to VFR flights.
ENR 1.4 : 2.1.3
What time-based wake turbulence separation minima apply to a MEDIUM following a SUPER?
3 minutes for landings,
3 minutes for departures from the full length,
4 minutes for an intermediate departure.
ENR 1.4 : 9.2.2
What is the order of precision for navigation aids?
- LLZ,
- GNSS,
- VOR,
- (NDB).
ENR 1.1 : 19.4.3
What navigation requirements apply where a flight is conducted with reference to radio navigation systems?
- After allowing for a possible track error of 9 degrees, the aircraft must come within the rated coverage of a radio which can be used to fix the aircraft position; and,
- The time between fixes cannot exceed two hours.
ENR 1.1 : 19.1.1
What standard timing applies in a hold?
Unless specified on the chart:
- Up to and including FL140, 1 minute;
- Above FL140, 1.5 minutes.
ENR 1.5 : 3.2.1
What alternate minima applies where an aerodrome forecase in unavailable or ‘provisional’?
Provision must be made for a suitable alternate.
ENR 1.1 : 59.2.12
What range of speeds is permitted for Category E aircraft during the final portion of an approach?
155-230 kts.
ENR 1.5 : 1.16.1
What elements of a PDC must be read back to ATC?
- SID, including RWY
- STAR, if issued
- Transponder code
ENR 1.1 : 3.25.7