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-   -   Crash in Laos (https://www.pprune.org/rumours-news/525687-crash-laos.html)

aterpster 17th Oct 2013 13:59

Xeque:


Bit of reality needed here.
The aircraft was 6 months old so no major maintenance issues.
I live in Thailand where we are experiencing the aftermath of a major weather system the same system being a contributing factor to this accident in Laos. At times here (and we are several hundred miles from the crash site) the rain has been so heavy that road traffic has been slowed to a crawl because you simply cannot see any distance in front of you.

There is only one question to ask. Was it prudent to continue the approach in such severe weather conditions?
Do you have a copy of the METAR in effect at the time of the accident?

If the rain was as heavy as you allege they probably wouldn't have had the required visual references at MDA or DA.

BOAC 17th Oct 2013 14:20

The weather station at Pakse Airport [VLPS] transmitted only NIL Metars on Oct 16th

aterpster 17th Oct 2013 16:14

The only two IAPs at the airport:

http://i201.photobucket.com/albums/a...psced478d5.jpg

http://i201.photobucket.com/albums/a...ps1e2d8ee8.jpg

physicus 17th Oct 2013 21:44

If the impact location on wikipedia is correct, that would indicate something happened halfway through the immediate righthand turn in the missed approach of the VOR DME 15 approach.

Are Laotian pilots perhaps ex military and trained on soviet hardware? If so, spatial disorientation resulting from the attitude indicator working the other way around vs in western airplanes might have been a factor. Crossair 498 comes to mind.

For those who don't know: Soviet era attitude indicators move the airplane symbol, not the background/horizon. So instead of levelling out of a bank, the instinctive reaction would increase the bank, as happened with the Crossair 498 crew (who were Moldavian/Latvian nationals trained on said hardware).

swh 18th Oct 2013 02:00


If the impact location on wikipedia is correct, that would indicate something happened halfway through the immediate righthand turn in the missed approach of the VOR DME 15 approach.
Have a look at the notams

physicus 18th Oct 2013 03:02

nobody posted NOTAM's, hence haven't seen them. You obviously have, perhaps you'd care to share? PAK VOR U/S?

MountainBear 18th Oct 2013 03:54

Cookies must be enabled. | The Australian

The media already has all the answers, of course. I will warn you that it is a rather egregious case of sensationalism. :ouch:

Super VC-10 18th Oct 2013 07:48

Coords
 
AFAIK, coords in the Wikipedia article were sourced from The Aviation Herald, so should be reliable. :ok:

27/09 18th Oct 2013 08:04

David R


As for the wider issue of the MA-60's safety, it's worth bearing in mind what the NZ government has said on the subject, in advice to travellers to Tonga:

"Tonga’s domestic airline fleet currently includes an MA-60 aircraft. This aircraft has been involved in a significant number of accidents in the last few years. The MA-60 is not certified to fly in New Zealand or other comparable jurisdictions and would not be allowed to do so without a thorough certification process under Civil Aviation rules. Travellers utilising the MA-60 do so at their own risk."
Politics at its best, I wouldn't place too much value on what was quoted in the article.

DaveReidUK 18th Oct 2013 08:53


I wouldn't place too much value on what was quoted in the article.
Well, of the 4 statements made:


Tonga’s domestic airline fleet currently includes an MA-60 aircraft.

This aircraft has been involved in a significant number of accidents in the last few years.

The MA-60 is not certified to fly in New Zealand or other comparable jurisdictions and would not be allowed to do so without a thorough certification process under Civil Aviation rules.

Travellers utilising the MA-60 do so at their own risk.
2 are undisputed facts (Tonga does operate an MA-60; no aircraft gets to carry pax in NZ, or indeed in most countries, unless certificated - which the MA-60 isn't)

1 is arguably true (6 hull losses in less than 5 years)

and 1 is simply a recommendation (albeit a prudent one IMHO)

Super VC-10 18th Oct 2013 09:43

Experience has shown that Simon Hradecky takes great care not to post incorrect info. Note the criticism from some quarters re the time it took him to post details of the accident at Aviation Herald, and the supporters who back him up in only posting verifiable facts, not speculation. Note also the lack of speculation in the Wikipedia article.

BOAC 18th Oct 2013 09:58

After swh's entry in 'the chocolate fireguard of the year' award, has anyone got the relevant Notams?

Finn47 18th Oct 2013 10:42

Aircraft crashed onto land first, before plunging into the river (see photo of skidmarks)

Bodies recovered in Mekong after Laos plane crash | Aiken Standard

Super VC-10 18th Oct 2013 11:08

Thanks for that link, Finn. Very useful for updating the Wiki article. :)

swh 18th Oct 2013 22:40

Any professional pilot should know how to obtain notams, did not realise we needed to go to this level.

A0020/97 NOTAMN
Q) VLVT/QNMCT/IV/BO /AE/000/999/1512N10545E020
A) VLPS B) 9704030935 C) 9707020935EST
E) NEW PAKSE VOR/DME 115.0/CH97X ON TEST.
CREATED: 06 Nov 2002 05:50:00
SOURCE: VLVTYNYX

Ye Olde Pilot 18th Oct 2013 23:20

Physicus

If the impact location on wikipedia is correct, that would indicate something happened halfway through the immediate righthand turn in the missed approach of the VOR DME 15 approach.

Are Laotian pilots perhaps ex military and trained on soviet hardware? If so, spatial disorientation resulting from the attitude indicator working the other way around vs in western airplanes might have been a factor. Crossair 498 comes to mind.

For those who don't know: Soviet era attitude indicators move the airplane symbol, not the background/horizon. So instead of levelling out of a bank, the instinctive reaction would increase the bank, as happened with the Crossair 498 crew (who were Moldavian/Latvian nationals trained on said hardware).
If Lao pilots are not ex military where do you think they get their experience?
We are talking about a poor country where only military and a very few handful of elite can learn to fly. Laos has no flying schools or private flight training.If you've ever been to some of the small airports you'll know facilities are basic to say the least. From my conversations with friends in Lao the weather was not good over the last week. Trying to land in a place like that would not have been easy given the circumstances.

I doubt it was anything more than severe weather that caused this accident.
Worth looking back on the Phuket OneTwoGo accident for more info.

FlyingChipmunk_01 19th Oct 2013 05:22

Lao Airlines Crash
 
Lao Airlines pilot told to change course before crash

According to news report, the pilot was Cambodian with over 30 years of flying experience and trained in Russian and France.

mikedreamer787 19th Oct 2013 05:39


The weather station at Pakse Airport [VLPS] transmitted only NIL Metars on Oct 16th
Probably the wind vane and temp box got blown away in the breeze the day before.

training wheels 19th Oct 2013 08:00


1 is arguably true (6 hull losses in less than 5 years)
Do you have a reference for that statement? I know of two (due to pilot error on both occasions) but I'm interested to know of the other 4. And whilst you're at it, how many hull losses have there been for the ATR in that period of time, just to compare?

BOAC 19th Oct 2013 08:17

Thanks for taking me to 'that level', swh - to complete your entry can you explain the significance of an 11 year old NOTAM in this accident?

Do we assume there are, in fact, no relevant NOTAMS?


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