Questions tagged [iaps]

Instrument Approach Procedures (IAPs) are procedures used by pilots to maneuver an aircraft by reference to their instruments during an approach, published by the FAA and other third parties (most notably Jeppesen).

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What do these items on a Jeppesen VOR approach chart mean?

I have some questions about certain VOR approach charts. I find some details confusing on the following chart for SLTJ VOR C Rwy 13: What does "state" mean? It's in bold in the minima ...
Brian García's user avatar
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1 answer
126 views

BGBW RNP A vs Straight-in approach

Good afternoon folks. I am a bit confused and trying to find the right answer. This is what we have: Why do we have here minimum for straight-in approach even though the descent angle is 4.1 degrees? ...
Clipper's user avatar
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5 votes
2 answers
272 views

How is the VOR-A approach at KVCB meant to be flown?

This is the VOR-A approach into KVCB: The plate indicates that "Circling NA west of Rwy 2-20." But runway 2 is left traffic and runway 20 is right traffic. How is one meant to avoid the ...
Chris's user avatar
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3 votes
3 answers
263 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?
Deepak's user avatar
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1 answer
335 views

If we are cleared for an ILS approach, can we descend according to the approach chart?

For example VCBI,ILS Z 04. We have ATC clearance: Descend and maintain 2300 feet, Cleared ILS RWY 04 approach. Can we descend as profile 1700 and then 1500, and intercept glide path? Or maintain ...
afanti's user avatar
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2 votes
1 answer
1k views

What is the difference between DH and RA in Jeppesen charts?

In CAT II and CAT III Approach Charts, the Jeppesen version of charts depicts both the "DH" and the "RA". And, I found out that they are somewhat different. So, why do these ...
moon's user avatar
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1 answer
230 views

What's the most commonly used circling approach procedure in the US National Airspace System?

As the title says: which of the many circling approaches in the US National Airspace System holds the title of "circling approach that is flown most frequently?" My guess is it's the KTEB ...
UnrecognizedFallingObject's user avatar
6 votes
1 answer
342 views

Although there are straight and circling minimums in the VOR Z chart, why separate VOR A chart created containing only the circle-to-land minimum?

Although there are straight-in-landing and circle-to-land minimums in the VOR Z chart, why was a separate VOR A chart created containing only the circle-to-land minimum? When we examine the chart ...
pilot162's user avatar
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8 votes
1 answer
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Why is the missed approach point sometimes beyond the threshold or runway like in the example below?

Why is the missed approach point beyond the threshold or sometimes beyond the runway like in the picture below? Is it just to simplify the ATC job or prevent routes from crossing or is it procedural?
pilot162's user avatar
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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 ...
pilot162's user avatar
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How to fly the step-down fixes on the LOC 32 approach at Dothan (KDHN)?

From Oaldy to CABTA is 2600, then is it CABTA to KENSY down to 2200? Using Localizer only...I see the glideslope intercept says 2200 but Kensy is father up.
1921's user avatar
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6 votes
2 answers
777 views

Is my procedure correct for simulated flight approach using this IAP after complete STAR?

I usually "fly" with flightsimulator (FlightGear, because is O.S. and freeware). I try to make the fly real as possible, and I try to use IAP, is this procedure correct to approach RWY 28 of ...
elbarna's user avatar
  • 163
1 vote
2 answers
336 views

GPS-based IAP at alternate airport

I'm reading AIM 1-1-17 section 5. (c). I understand that the current regulation allows un-augmented GPS (non-WAAS GPS) to be used at either destination or alternate, but not both. But the chapter goes ...
Hot.PxL's user avatar
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10 votes
2 answers
3k views

ILS Approach, when can you descend on the glide path?

The following quote is from G. Bristol’s book, Ace the Technical Piloting Interview: You can descend on the glide path when You have been cleared for the ILS procedure. You have captured the ...
tedioustortoise's user avatar
4 votes
2 answers
3k views

Why is the LOC RWY 26 approach at Innsbruck classified as LOC instead of ILS or IGS?

After reading about Localiser Type Directional Aid (LDA) and Instrument Guidance System (IGS) on SKYbrary, my understanding of classifying these approaches is this: Course Offset With GP Without GP ...
Bianfable's user avatar
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How does the Boeing 737's implementation of RNAV and VOR approaches compare to Airbus? [closed]

How does the Boeing 737's implementation of RNAV and VOR approaches compare to Airbus?
Tuğçe dilek's user avatar
1 vote
1 answer
427 views

What is the reason the MDA for VOR approaches differs from the DA for ILS approaches?

What is the reason for the numerical difference between the MDA altitude in VOR approaches and the DA altitude in ILS approaches?
Tuğçe dilek's user avatar
8 votes
1 answer
1k views

Why is VNAV and LNAV being prohibited with QFE?

737NG AFM says : The use of VNAV or LNAV with QFE selected is prohibited. But what's the reason of this limitation?
cwcauc's user avatar
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5 votes
2 answers
634 views

How do I fly direct to the VOR on a VOR missed approach?

Below is the Truth or Consequences VOR-A Approach in New Mexico, USA. The Missed Approach procedure for this approach requires that you do a left climbing turn to 8300 feet direct to the VOR. My ...
DLH's user avatar
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4 votes
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When can I proceed inbound in a hold in lieu of a procedure turn when cleared for the approach?

Let’s say I am holding on a published hold in lieu of a procedure turn but not yet cleared for the approach. Upon receiving approach clearance (say on the outbound leg of the hold) would I have to ...
Geralt of Rivia's user avatar
1 vote
1 answer
1k views

When can I descend on a feeder route if instructed “maintain ... until established”

AIM 5-4-6 discusses how Approach Clearance applies to feeder routes. It says that when ATC clears an aircraft for the approach, the aircraft is expected to use a feeder route if applicable. My ...
asb1230's user avatar
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2 votes
1 answer
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Are both RVR and visibility minimum required for CAT I ILS?

Is it required to have both RVR and visibility to be more than minimum for ILS CAT 1 or one of them is acceptable. If both required which one has priority.
Sid's user avatar
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7 votes
2 answers
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What RNP level is required for an RNP approach if the chart does not specify a value?

RNP (Required Navigational Performance) approaches require the aircraft to monitor the navigation accuracy within a specified limit, called RNP level: There are several different levels of RNP. ...
Bianfable's user avatar
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2 votes
1 answer
528 views

KSEE LOC-D conundrum

Consider the LOC-D at KSEE and note the Alternate Minimums criteria. 99.9% of the time, the winds strongly favor 27R; The tower closes at 1900 PT currently (usually at 2100 PT non COVID times); LOC-D ...
dawg's user avatar
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3 votes
3 answers
244 views

How can a pilot become established on the KBIV, ILS or LOC Rwy 26 Approach?

Consider KBIV (Holland) in west Michigan: Now consider the ILS / LOC to Rwy 26 at KBIV: Questions: There is a note on the IAP: "Procedure NA for arrival on PMM VOR/DME airway radials 004 CW ...
dawg's user avatar
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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 ...
aeroengie's user avatar
4 votes
3 answers
962 views

Are you required to fly a full hold when doing a course reversal?

When doing a hold in leu of a procedure turn are you required to do a full hold for the course reversal or just the entry to the Fix and then proceeding in bound for the final approach course?
Spartan 2634's user avatar
0 votes
1 answer
461 views

What is the meaning of GPS IAP RNP that appears in Notes?

Referring to the RNAV (GPS) RWY 30 approach, what is the meaning of RNP APCH in the notes section? (Highlighted in YELLOW) Also, what are the separate DA values in parenthesis? (Highlighted with a red ...
dawg's user avatar
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2 answers
425 views

Do you ask ATC for HILPT?

This specifically pertains to VOR approaches, but I guess it can apply anywhere else that has a hold in lieu of procedure turn (HILPT) also. There are numerous examples but let's try one: KUKI VOR-A. ...
saigafreak's user avatar
7 votes
3 answers
1k views

How should one fly the entry procedure to an approach when the hold is not aligned with the outbound course?

Consider the following NDB DME approach into runway 08 at Jersey (EGJJ): Let's assume we are coming in from the North and are currently cleared direct to the JW NDB flying inbound on a 180° track. ...
Bianfable's user avatar
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1 vote
1 answer
542 views

Why do pilot and GPWS approach callouts say “minimums” instead of “minima”?

A safe instrument approach requires a number of callouts along the way; two of the most important come fairly late in the approach, first to alert the pilot flying that the aircraft is approaching the ...
Vikki's user avatar
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6 votes
2 answers
564 views

How are pilots prepared for a go around on a simultaneous converging approach when the "converging chart" is not published?

Source: adsbexchange.com Today I learned that at KPHL (Philadelphia) simultaneous converging approaches are used. (Note that AAL is faster, which narrowed down the time gap by the time it landed.) ...
user avatar
15 votes
2 answers
4k views

Why is the missed-approach course for the "RNAV (GNSS) - A" approach to runway 28 at ENSB shaped all funny?

Svalbard-Longyear (ENSB) has one particular approach (the RNAV (GNSS) - A approach to runway 28) whose missed-approach course is... oddly-shaped, to say the least: (PDF by Avinor; screenshot and ...
Vikki's user avatar
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1 vote
1 answer
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Is the arrival segment of an IAP in PANS-OPS the equivalent of FAA's feeder route?

In ICAO's manual 8168 ("Aircraft Operations"), the term "Feeder route" is never mentioned. Instead, it states: 8168 Volume II, "Approach Procedures": 1.2.3. Segments of the approach procedure. An ...
Vector Zita's user avatar
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4 votes
1 answer
267 views

Does a straight missed approach require all turns to be less than or equal to 15 degrees?

I am studying ICAO's PANS-OPS 8168 manual, and I am having trouble understanding the criteria applied to straight and turning missed approaches. In the manual, it clearly states: I-4-6-2 Types of ...
Vector Zita's user avatar
  • 1,853
0 votes
0 answers
24 views

Does transition to GBAS navigation require alignment of the intermediate segment with final segment? [duplicate]

I am studying how the Ground Based Augmentation System (GBAS) affects the Instrument Approach Procedures, and I noticed that in ICAO's Aircraft Operations manual (8168, Volume II) it states: Part ...
Vector Zita's user avatar
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1 vote
1 answer
165 views

Does transition to SBAS or GBAS navigation require alignment of the intermediate segment with final segment?

I am studying how the Satellite Based Augmentation System (SBAS) or the Ground Based Augmentation System (GBAS) affect the Instrument Approach Procedures, and I noticed that in ICAO's Aircraft ...
Vector Zita's user avatar
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9 votes
1 answer
2k views

What is "(CFMCC)" on an ILS approach chart?

I'm studying the ILS or LOC RWY 3 approach chart for KMKC. I'm trying to figure out what "(CMFCC)" at the runway means. Is it a computer navigation aid?
Tracy's user avatar
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4 votes
2 answers
671 views

Why is LGA's Instrument Approach Procedure VOR-H misaligned with the runway?

I was looking at LGA's Instrument Approach Procedures, and I noticed that on this IAP plate the final segment (CHUGG to MAFAS) is misaligned with the runway. How should I interpret this? Shouldn't be ...
Vector Zita's user avatar
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0 votes
2 answers
5k views

What does the "visibility" number mean on an approach plate?

In the profile view in an approach plate, there is a visibility number next to the MDA or DA. What does it mean? Is it limitation to use the approach?
Mun Park's user avatar
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5 votes
2 answers
8k views

What is a "sidestep landing" in an instrument approach?

I have never seen a sidestep landing on an approach plate. What is a sidestep landing and when I can chose this approach?
Mun Park's user avatar
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4 votes
1 answer
547 views

What does the letter J mean at the start of an FAA instrument approach chart identifier?

To identify a specific Instrument Approach Chart in either the FAA Terminal Procedures Publication (TPP), or the Department of Defense (DoD) Terminal Low Altitude (TLA) Charts, the FAA uses what they ...
Alan Howard's user avatar
6 votes
1 answer
2k views

Why are the minimums between these two ILS instrument approaches to the same runway so different?

The minimums for the Van Nuys ILS Z Rwy 16R are 1095/40. The minimums for the Van Nuys ILS Y Rwy 16R are 1461-1 1/2. Question: Why are the minimums for the ILS Z so much lower than the minimums for ...
user avatar
3 votes
3 answers
665 views

PA/APV Glidepath Descent and Obstacle Clearance Slope's lowest point determination

I am studying the US Terminal Instrument Procedures manual (TERPS) and as I was skimming through the guidelines about Sloping Obstacle Clearance Surface, I came across the image below from section 2-1-...
Vector Zita's user avatar
  • 1,853
2 votes
1 answer
3k views

What's a stepdown fix in a non-precision approach procedure?

Could someone explain to me what's a stepdown fix in non-precision approaches?
Flightfighter's user avatar
1 vote
1 answer
2k views

How do I use the "Inoperative Components or Visual Aids Table" when more than one component is inop?

I can't fully seem to understand this sentence: If more than one component is inoperative, each minimum is raised to the highest minimum required by any single component that is inoperative Can ...
RAU's user avatar
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4 votes
2 answers
2k views

What is the missed approach procedure when initiated below MDA/DA/DH?

Let's say you continue below the DA/DH on an IAP because you have the APL insight; and of course no lower then 100 ft above TDZE. Now you arrive and don't see any required visual cues to continue to ...
RAU's user avatar
  • 275
5 votes
1 answer
233 views

Why do some airfields not have a climb gradient for LPV?

Can anyone advise why for some airfields there are minimum approach climb gradients for LNAV with none for LPV, while at other airfields there are minimum approach climb gradients for both LPV and ...
andy-m's user avatar
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2 votes
2 answers
917 views

Can some IAFs be skipped if more than one IAF exists?

Take, for example, this FAA official IAP plate (ILS RWY 13L CAT II JFK). Its Initial Segment consists of more than one Initial Approach Fix (IAF): COVIR, KMCHI, and BUZON. As far as I can interpret ...
Vector Zita's user avatar
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5 votes
1 answer
508 views

What is the reference plane for the ILS glideslope angle?

Is a 3-degree glideslope based from the runway surface slope at the point where the antenna is installed or is it referenced to a zero-degree plane? If you know of a design document or FAR/AIM ...
David Pelletier's user avatar