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Questions tagged [non-precision-approach]

Non-precision approaches are instrument approach procedures (IAPs) that do not include vertical guidance.

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1 answer
56 views

Questions regarding Non-precision Localiser approach (KSEE LOC-D Approach)

Scenario Say we are doing some practice approaches into KSEE on the LOC-D approach. We are just southwest of the field and ATC/CFII says to climb to 5500 direct to BARET, cross BARET 5500 cleared for ...
-1 votes
1 answer
138 views

In Jeppesen Approach charts, what does D2.8, D3.8 mean?

In Jeppesen Approach chart for VABB VOR RWY 32, what does D2.8 (BBB VOR), the MDA is lower at 650ft. when at D3.8 (BBB VOR), the MDA is higher at 780ft. How to decide which DME should be taken before ...
4 votes
2 answers
109 views

Timing not authorized for defining the MAPt

Does anyone know why some charts have written "Timing not authorized for defining the MAPt"? Could this happen when the DME required is written on the chart? Thank you,
2 votes
1 answer
590 views

In what situations can LNAV/VNAV minima be higher than LNAV minima, such as RNP Approach to Runway 16 in Corfu?

I recently flew the RNP approach for runway 16 into Corfu. While reviewing the approach charts, I noticed something unusual. The LNAV/VNAV minima is set higher than the LNAV minima for this particular ...
0 votes
1 answer
121 views

Why are there altitude differences on the Jeppesen ESB Ankara VOR chart?

What is the reason for the 10 feet difference between ESB dme altitude and profile view? Thanks.
3 votes
1 answer
1k views

A320 When to arm approach on RNAV or LNAV

Looking for answers on real/sim behavior on A320 Managed/Managed non-ILS (2D or 3D) approaches. Airbus says to only press the APPR arm button when on the final leg with the Final App Fix as the "...
8 votes
1 answer
2k views

How can a pilot fly a descent angle of 4° in an A320?

Would any A320 pilot be able to share any tips regarding maintaining a descent rate for final approach of 4°? Of course this is in case of manual flying. I know we can use a descent rate of speed*5 ...
3 votes
3 answers
296 views

Can a Continuous Descent Final Approach (CDFA) be carried out if there is no final approach fix?

Is it possible to carry out a CDFA approach if there is no defined final approach fix mentioned on the instrument approach chart?
7 votes
1 answer
914 views

Why did autopilot switch to CWS P on a LNAV/VNAV approach, and why didn't it reduce descent rate to comply with CDU alts when VNAV was re-engaged?

We were performing an NDB approach the other day due to the ILS being unserviceable. We are flying a 737-800, FMC Update 14.0 (“common VNAV”) We were using LNAV and VNAV as our roll and pitch modes ...
1 vote
2 answers
207 views

LFLL LSE VOR 35L Visual Approach

Was wondering whether someone could help me understand how to perform a visual approach (not using the VOR) specifically if I look at RWY 35L at LFLL. Airport elevation is 821 ft. It's a 3° GS ...
0 votes
1 answer
90 views

Why are the height values different although the altitude values in the "straight-in approach" and "circling" minimums are the same?

Why are the height values different although the altitude values in the "straight-in approach" and "circling" minimums are the same? For Adana airport, the minimum altitudes of the ...
3 votes
1 answer
430 views

What is the dots before Missed App Point on the Jeppesen VOR Chart?

What is the dots before Missed App Point on the Jeppesen VOR Chart ? and also why the pull up vector before the missed approach point ? Thanks.
4 votes
6 answers
3k views

When do I execute a missed approach on a LOC approach when I can't identify the MAP?

According to AIM 5.4.21(b): When an early missed approach is executed [...] fly the IAP as specified on the approach plate to the MAP at or above the MDA or DH before executing a turning ...
3 votes
3 answers
502 views

Can you fly a VFR practice approach at night that is Notam’ed “NA at night”?

To frame the question more specifically, at KCSV the ILS Z 26 approach is NOTAMed “NA at night”. So is it legal to fly the approach VFR for training purposes to satisfy aeronautical experience ...
6 votes
2 answers
13k views

When to go missed on a non-precision approach?

I am training to get my instrument rating and I have come across a confusing point. I understand that, when flying a precision approach, you go missed upon reaching the decision height for that ...
0 votes
0 answers
1k views

What is the difference between CANPA and CDFA?

What is the difference between Constant Angle Non-Precision Approach (CANPA) and continuous descent final approach (CDFA)?
7 votes
2 answers
4k views

Why was Air India flight 101 in 2018 cleared for the ILS at EWR?

On Sep. 11, 2018, Air India Flight 101 was flying from Delhi to JFK. On approach they had multiple failures including two of the radar altimeters and the localizer receiver. They decided to do an LNAV/...
3 votes
3 answers
1k views

When not cleared straight in for a VOR approach, how is this type of procedure executed?

You are flying to the GDM VOR on a 097 heading. The ATC clears you for the approach, but does not specify straight in. The procedure turn is marked by the barb and specifies remaining within 10nm. My ...
5 votes
1 answer
485 views

Why is there no Maltese Cross in this non-precision approach's profile view which has a FAF?

I am wondering why this chart does not show the FAF with a maltese cross as it is used in non-precision approaches to depict FAF.
2 votes
1 answer
198 views

Crossing mid-field on a circling approach

During a circling approach, can I cross midfield to enter the pattern or do I have to literally fly around the airfield to get into the pattern? I know its an odd question, but my airfield has an RP ...
1 vote
1 answer
102 views

Why don't the Altitude-DME values in the approach profile match the Groundspeed-FPM values in the conversion table?

Why don't the Altitude-DME values in the approach profile match the Groundspeed-FPM values in the conversion table? When the calculation is made with the values given in the conversion table, the ...
15 votes
3 answers
1k views

Do instrument approach procedures sometimes have a minimum temperature?

Non-precision instrument approaches generally have altitude restrictions which get lower when you get closer to the airport. I always figured these restrictions were AMSL using the current altimeter ...
0 votes
2 answers
321 views

What are "CIRCLING CATS"?

A NOTAM at Pensacola International Airport (KPNS) uses the phrase "CIRCLING CATS". What does this phrase mean?
0 votes
1 answer
346 views

Why are there no straight-in landing minimums (only circle-to-land) for this VOR approach at Adana?

When we examine the "VOR A" Jeppesen chart on LTAF airport page 23-4, we see that there are only circle-to-land minimums in the minimums section. When I researched the reasons for using ...
3 votes
0 answers
299 views

Why is there no final approach fix symbol on some of the Jeppesen VOR charts? (Maltese Cross Symbol)

Why is there no final approach fix symbol on some of the Jeppesen VOR charts? (Maltese Cross Symbol) What does the box marked with a red arrow mean when there is no FAF symbol and how is it defined? ...
4 votes
2 answers
3k views

How to interpret/use "Fix Minimums" (at KALB)

This one stumped both myself and my CFI. Im specifically asking about the minimums at KALB IL/LOC 19 but a general answer is also appreciated. The plate lists two distinct sets of minimums and we ...
15 votes
3 answers
9k views

When flying a circling approach, is it permitted to begin the visual circling segment prior to the final approach fix?

If it were a beautiful sunny VFR day and you were cleared for a circling approach, can you begin the circle prior to the final approach fix/circling DH in order to maneuver visually to land? Here are ...
17 votes
4 answers
18k views

Can a pilot use their GPS/FMS to fly a VOR or NDB approach?

GPS is more accurate than a VOR or NDB signal. Can we use a GPS to fly a VOR or NDB approach from the initial approach fix through the missed approach and hold? I know there are two types of ...
13 votes
4 answers
16k views

Why is radar required on some FAA instrument approaches?

The ILS / LOC approach at KCXY states radar is required. I understand I can't fly the approach if not in radar contact. However, if flying the LOC approach I think I can identify both final and HORVI (...
2 votes
1 answer
83 views

Where can I find details about necessary system accuracy, integrity etc of a conventional navigation aid?

I am wondering where (probably in which ICAO document) can I find information about the required accuracy, integrity etc. for a conventional navigation aid for non-precision and precision approaches (...
4 votes
1 answer
581 views

Does the A320's FMC automatically adjust the rate of descent on a non-precision approach?

Does the A320's FMC automatically adjust the rate of descent on a non-precision approach? Like a back course approach for example if the distance to altitude is (or can be) programmed in?
7 votes
2 answers
2k views

Why is a straight-in approach not allowed to RWY 07 at Cluj (LRCL)?

Here's a VOR approach for runway 07 at Cluj (LRCL). On the lower left side of the chart you will see the "Straight-in" OCA(H) as N/A and then a "Circling" OCA(H) of 2540 (for ...
11 votes
2 answers
38k views

How to calculate the vertical profile for a LOC only approach?

I am kind of stuck for calculating a descent path on the ILS RWY 7 approach into KORL. Assuming the glide slope is not available and you have to use the localizer only, what is the best way to ...
3 votes
2 answers
482 views

Why is this Instrument Approach NA for certain radials, yet it depicts a feeder route for those radials?

The RNAV (GPS) 28 at Tampa Intl (KTPA) says Procedure NA for arrivals on PIE VORTAC radials 356 CW 157 That seems to mean the approach is not available for anyone generally northeast of the PIE ...
1 vote
1 answer
1k views

Can Instrument Approaches be carried out when RVR is not given for the full runway length? (Approach Ban)

Bristol Airport (EGGD) has the following NOTAM in place: INSTRUMENTED RVR RWY 27 STOPEND OUT OF SERVICE Would aircraft be allowed to continue approaches into Bristol? If so, would the touchdown and ...
0 votes
1 answer
475 views

Is this an accurate method to showing how the correct Decision Altitude/Height for an approach has been determined?

Here's my method of summarising how the decision altitude/height for an approach was determined: ...
2 votes
1 answer
619 views

In the B737, does an IAN NPA require that the G/P is 3° or can the G/P angle vary?

For an IAN Approach to be recognized and work in a Boeing 737, does the Approach G/P need to be exactly 3° or can it vary?
1 vote
7 answers
5k views

What is the maximum rate of descent in an instrument approach?

What is the maximum rate of descent approved in an instrument approach procedure non-precision? Basically what is the maximum rate of descent (Fpm) that I use during the approach?
5 votes
2 answers
14k views

What is the difference between ILS and VOR/DME?

I have wondered many times about the difference between VOR/DME and ILS and which one is better for carrying out approaches. Why do pilots use VOR/DME when the ILS is a better option because it is ...
1 vote
1 answer
238 views

What if you approach the VOR station such that your turn OB is not on the holding side?

I'm reviewing the Sporty's ground school for VOR approaches, and their example shows the approach to the VOR station then heading OB as tracking on the holding side. What if you approach the VOR ...
2 votes
1 answer
948 views

Why is there no Maltese Cross in this non-precision approach chart which has a FAF?

I am wondering why this chart does not show the FAF with a maltese cross as it is used in non-precision approaches to depict FAF. The chart’s briefing strip refers to D6.0 as the FAF and on the plan ...
0 votes
2 answers
769 views

How can I find examples of airports with specific approach types?

Can you guys help me find airports with these approaches: An airport with only an LNAV mins (so no LNAV/VNAV or anything other than just LNAV) One with an LPV lower than 200 feet One with an ASR ...
3 votes
0 answers
243 views

How to determine when a non precision approach does or doesn't have a Final Approach Fix (FAF)?

I am curious to know how to know for sure whether a non precision approach has/doesn't have a final approach fix by looking at its plate. From what I can see, a Break Cloud and/or NDB procedure might ...
6 votes
4 answers
2k views

Does a Tower controller need to see an aircraft on final to give landing clearance?

If there is an IFR aircraft on approach that has already received an approach clearance, and he reports being at the final approach fix but the controller does not have him in sight yet, can the ...
3 votes
1 answer
2k views

How is the FPA (flight-path-angle) computed?

How is FPA computed by the Auto-pilot to follow the desired FPA? One part is clearly VS, is the other part IAS or Ground speed? Where does Ground speed come from?
5 votes
1 answer
572 views

Approach plate does not require DME, but DME used in the published missed?

This approach plate doesn't say "DME REQUIRED", but the published missed approach uses DME. Can I still fly it without DME equipment? If this approach didn't say "RADAR REQUIRED", could you fly it ...
1 vote
1 answer
296 views

Descending while turning inbound on a non-precision approach

I'm writing my instrument rating examination soon and one of the questions that I came across was: While executing a VOR A RWY 01 approach for Alexander bay, 2700ft is reached at 8DME on the ...
1 vote
0 answers
123 views

According to ICAO, which rules are applicable to SBAS Non-Precision Approach Procedures?

I am studying the Satellite Based Augmentation System (SBAS) from PANS OPS manual 8168, Volume II, sixth edition, and I have a problem concerning the criteria of SBAS-NPA. In Part III, Section 3, ...
6 votes
1 answer
13k views

How to determine the MAP for an RNAV MDA approach?

On this RNAV approach plate, what is the missed approach point for the LNAV MDA approach? How do you arrive at this answer?
7 votes
2 answers
2k views

Does having lead-in lights in sight allow descent below MDA?

Does having lead-in lights in-site during an approach that includes them allow for a pilot to descend to 100 feet above the touchdown zone elevation? 14 CFR 91.175 allows a pilot to make such a ...