"A significant number of operating practices allow the discretion to the Commander to decide how the flight should be flown. These are characterised with the need to exercise sound judgement and prudent assessment and may be referred to as sound operating practises (included under the more general heading of airmanship during an earlier period)."
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Re photos of the airport, yes, found earlier as posted above.
Re, "Also confirmed by the airport chart." The PAPI information is not on the Jepp Airport chart. The info is on the approach plates, just below the profile section. Herod, yessir, ten years retired and stuff does slip away! |
PJ / FW, " four reds ". " something beneath the aircraft ". This assumes that PAPI was visible sometime after 'first contact'. Furthermore this poses the question, contact with which feature. Conventional overland NPAs require visual contact with the runway environment, which can be interpreted as not requiring contact with the runway, and in extreme no approach lights. For us all red or all white visual slope guidance is a mandatory go-around below 1,000R because the approach is unstable (some exceptions). |
In my last company (I was there for 19 years) the "Rad Alt live - 2500 feet" with a cross check from the other pilot was an SOP call. Making sure that both Rad Alts agreed was particularly important on an LVP approach.
It made perfect sense to me and cost absolutely nothing. By the way, I used to go into St Maarten with the DC-10. We always landed to the east and took-off to the west. It was not difficult as long as you had done your homework. The length of the runway and the hill at the eastern end were the main problems. Most of the time we could make JFK with a full load but sometimes the tailwind on take-off would mean a quick refuel at San Juan. |
Originally Posted by PJ2
The PAPI information is not on the Jepp Airport chart. The info is on the approach plates, just below the profile section.
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The 737 was so close from the water maybe becouse the pilot doesn't calculate well the speed or alttitude. The problem was he did the go around very late. I can't understand how he could not see the lights indicated by the altitude
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PJ12:
The PAPI information is not on the Jepp Airport chart. The info is on the approach plates, just below the profile section. The info on the approach chart does show the PAPI and ALS, but is quick-reference info as opposed to the airport/takeoff pages. |
Originally Posted by DaveReidUK
(Post 9707222)
Are you seriously suggesting that the difference between standard 1013.2 mb and on the day QNH 1019 mb (about 150') isn't significant on approach ?
misset: to set, adjust or calibrate something incorrectly :ugh: I didn't say that. What I meant was that 150 ft below minima is certainly higher than what they ended up flying at. Regarding misset, my mistake, English is not my first language and haven't seen it written like that before. Though mis-set would probably be easier to understand for a non-native English speaker. @Aluminum shuffler: you're right, I didn't mean to dismiss the whole wrongly set altimeter theory altogether, and surely they could have misheard an altimeter setting. However, if the pilots were familiar with flying in the Caribbean, an altimeter setting higher than say 1020 mb (30.14 inhg) at a sea level airport in the Caribbean is unlikely and should have raised an eyebrow. That's a big IF though. I do keep the radio alt in scan once it becomes alive, and although in some mountainous airports (like several Andean ones...) it doesn't help much if you don't have some context or knowledge of the terrain around the airport, it's pretty obvious it's more than useful at a sea level airport. With the info we have, I'm still biased to both pilots looking outside (or getting distracted somehow) when breaking out and no one looking inside. It still doesn't paint the full picture as a 3° path should look familiar to two commercial jet pilots, even if no PAPI. Surely the weather on this approach couldn't make that assessment any easier, but at least a rough "3° visual path" could have been "calculated" |
:ok:, thanks aterpster.
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Dadanawa, you seem to be speaking the most sense here, backed up with numbers. If the MDA is 500' at 1.5nm or 700' at 2.0nm as you suggest, then it would be very easy for a 737 at a low thurst setting to lose several hundred feet if hit by a microburst or downdraught. It would take a few seconds to spool up and go-around which is what it looks like in the video. That weather was moving towards the airport (don't know if a frontal system or just a band or rain showers) and I have had experiences flying through a 'curtain' like that where there was a sudden downdraught and sometimes changes in wind velocity/direction (horizontal windshear too). If you were in IMC and breaking out on an approach, this may not be a hazard you are anticipating especially as the weather band on the weather radar may not appear to be moving. It could also be that the windsock situated half-way down the runway, may still be showing the runway as favouring the opposite wind as the weather over the sea may not yet be affecting that far inland. I think they got caught in something like windshear an responded appropriately, another few miles out and it would have been a non-event. The closer you get to terra-firma, the more significant downdraughts and windshear become and are sometimes an unseen danger.
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Can people explain why the Truck heading towards the main runway in this video isn't being given more credit for a go around decision?
https://www.youtube.com/watch?featur...78&app=desktop |
Originally Posted by bluesideoops
(Post 9712166)
The closer you get to terra-firma, the more significant downdraughts and windshear become and are sometimes an unseen danger.
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Good wet-runway landing...not.
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Originally Posted by Ru55
(Post 9712435)
Can people explain why the Truck heading towards the main runway in this video isn't being given more credit for a go around decision?
https://www.youtube.com/watch?featur...78&app=desktop May I remind you what that approach looked like? http://i17.photobucket.com/albums/b7...pstcjz6lls.jpg |
Originally Posted by ACMS
(Post 9707581)
Could be similar to Lion Air in Bali, where they didn't go around soon enough to avoid landing on the water........
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That was on the correct profile until they stalled due to a radalt failure affecting the autothrottle and piss poor pilots. Whatever happened to this Westjet is unrelated to the Turkish.
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The 2nd landing was with a 'healthy' margin beyond the threshold, compared to the bigger visitors; so for a smaller cousin it was perhaps acceptable. But back to my question, which only the crew can answer: what did they do differently the 2nd time? They seemed to have worse vis e.g. the rain, but flew a better profile for glide path to the runway. Why? I'm assuming they flew both approaches on autopilot. I'm curious what they did differently to execute so different a profile. That is how we can learn from this. That is what this discussion should be about: what did they do wrong and then how did they correct it. This is a learning process not a blame process.
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Paid attention? Took them 45 minutes to collect themselves.
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That is simply not true. Read the thread.
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Looking at that video ... and looking at the photo posted at the beginning of the thread, surely no one is suggesting they were taken of the same approach on the same day? The cloud cover, rain, approach angle are completely different. It's solid cover with rain on the video, broken and sunny on the photo .. the sea state is calm ... it would have been somewhat more lively in that storm etc ...
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