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-   -   G-LAWX S92 Incident AAIB (https://www.pprune.org/rotorheads/627996-g-lawx-s92-incident-aaib.html)

JulieAndrews 13th Dec 2019 15:55

G-LAWX S92 Incident AAIB
 
14 Oct 2019G-LAWXSIKORSKY S-92A High rate of decent on landing,Under Investigation
Anyone able to share anymore info?

"High Rate of Decent on Landing" - would that not just be a "heavy landing" or is there more to this if we read between the lines?
As this is simply a rumour network:
Was this a case of failing to "practice what you preach"?
Or a lack of recency and credible experience 'on-type'?
Was it another 'Paul McCartney-esque' incident?
Cant wait years for the official report so need to speculate now ...........
On a more serious note - just thankful that everyone got away this time
​​​​​​​

helicrazi 13th Dec 2019 16:17

High RoD n landing and heavy landing are 2 very different things

jeepys 13th Dec 2019 16:45


Originally Posted by JulieAndrews (Post 10639102)
14 Oct 2019G-LAWXSIKORSKY S-92A High rate of decent on landing,Under Investigation
Anyone able to share anymore info?

"High Rate of Decent on Landing" - would that not just be a "heavy landing" or is there more to this if we read between the lines?
As this is simply a rumour network:
Was this a case of failing to "practice what you preach"?
Or a lack of recency and credible experience 'on-type'?
Was it another 'Paul McCartney-esque' incident?
Cant wait years for the official report so need to speculate now ...........
On a more serious note - just thankful that everyone got away this time

Yes the 92 is a jolly decent machine. I wonder if descent auto corrected to decent!
​​​​​​​

helisniper 13th Dec 2019 16:53

QUOTE=helicrazi;10639116]High RoD n landing and heavy landing are 2 very different th
 
Helicrazi,

Would you mind sharing your wisdom on this matter with us then?

HS


Jimmy. 13th Dec 2019 19:18

Wasn't this the one that lost too much height on the approach to an oli rig, had an overtorque and heading deviation upon recovering?
I couldn't find the thread here nor the link, sorry.

heli14 13th Dec 2019 19:31


Originally Posted by Jimmy. (Post 10639241)
Wasn't this the one that lost too much height on the approach to an oli rig, had an overtorque and heading deviation upon recovering?
I couldn't find the thread here nor the link, sorry.

don’t think so. G-LAWX is a vip/corporate-configured s92, Starspeed AOC

industry insider 13th Dec 2019 23:23


Wasn't this the one that lost too much height on the approach to an oli rig, had an overtorque and heading deviation upon recovering?
I couldn't find the thread here nor the link, sorry.
No, that one was in Canada. Regardless of the circumstances the parameters were approximately:

1700fpm ROD, 10 KTS, 30’ off the water and pulled 145% torque drooping to 78% NR, both ACs off line and that S-92 still flew home.

It’s one tough aircraft.

Jimmy. 14th Dec 2019 00:45


Originally Posted by industry insider (Post 10639360)


No, that one was in Canada. Regardless of the circumstances the parameters were approximately:

1700fpm ROD, 10 KTS, 30’ off the water and pulled 145% torque drooping to 78% NR, both ACs off line and that S-92 still flew home.

It’s one tough aircraft.

Insider, I think you are talking about the Cougar incident after takeoff from a rig some years ago. IMC after takeoff, too much pitch up, FD coupled with airspeed dropping (and decoupled), descent IMC at very low airspeed at high rate and then VMC, overtorque...
The incident I mentioned was this year, during approach, "sudden" loss of height and then NR drop combined with heading change (probably rapid collective increase), but I couldn't find the source.
Agree with you, very tough aircraft.

helicrazi 14th Dec 2019 07:15


Originally Posted by Jimmy. (Post 10639391)
Insider, I think you are talking about the Cougar incident after takeoff from a rig some years ago. IMC after takeoff, too much pitch up, FD coupled with airspeed dropping (and decoupled), descent IMC at very low airspeed at high rate and then VMC, overtorque...
The incident I mentioned was this year, during approach, "sudden" loss of height and then NR drop combined with heading change (probably rapid collective increase), but I couldn't find the source.
Agree with you, very tough aircraft.

no, Insider was referring to the much more recent incident, which occurred on approach.

Jimmy. 14th Dec 2019 11:01


Originally Posted by helicrazi (Post 10639520)
no, Insider was referring to the much more recent incident, which occurred on approach.

Thanks! Do you have a link, please?

212man 14th Dec 2019 13:12


Originally Posted by Jimmy. (Post 10639668)
Thanks! Do you have a link, please?

https://www.cnsopb.ns.ca/news/update...ter-occurrence

Jimmy. 14th Dec 2019 14:09

Thank you, 212man.

pilotmike 15th Dec 2019 08:51


Originally Posted by helicrazi (Post 10639116)
High RoD n landing and heavy landing are 2 very different things

Well go on then, we're all ears. Sounds crazi.

SASless 15th Dec 2019 11:08

Explored the linked sites data.....came away thinking the Canadians must have some serious problems with excessive gravity with all the "Collided With Terrain" investigations.

The other thing that posed some interest was the "Collided With Trees" as compared to "Collided With Terrain"......whats the difference I wonder?


212man 15th Dec 2019 11:09


Originally Posted by pilotmike (Post 10640309)
Well go on then, we're all ears. Sounds crazi.

Doesn’t seem difficult - a hard landing is where you have a high rate of descent during the touchdown. Depending on the actual rate, and the subsequent forces exerted, that may or may not exceed the design limits and result in structural damage. A high rate of descent during the landing ‘phase’ can be arrested prior to touchdown or a missed approach carried out. The circumstances behind how and why the high rate of descent occurred might constitute a ‘serious incident’ and warrant an investigation - I’m guessing that’s what is happening here.

OvertHawk 15th Dec 2019 15:35

Julie

From your wording it's fairly plain that you think you know more about this than you're letting on.

There was a serious incident - that much is plain otherwise AAIB would not be looking into it.

It was reported by the crew - it's being investigated.

I'm not invloved with the operator and never have been. Nor am I going to suggest people don't speculate - this is, as you say a rumour network.

You however are not speculating - you're clearly trolling and one has to consider your motivation.

OH

JulieAndrews 15th Dec 2019 16:04

TOH
Not sure if I know anything more than anyone else in the UK Onshore Industry whom uses Pprune, waiting to see..........
Also - waiting to see how this incident fits within the scope of CAA’s recent report of the industry and it’s safety levels.
I’ve attended various seminars, briefings and functions where a lot of back slapping goes on but the old spectre of commercial pressure remains. Couple that with the helicopter pilots’ natural eagerness to ‘push on’ and we get the repeat headlines - irregardless of how many CAA Industry Reports are published.
Personally, I will be disappointed if it turns out to be another case of a crew thinking they did not require a dynamic risk assessment and ‘pushed on’, leading to an incident, further CAA restrictions and bad press for the industry.

Maybe if you hear more details you can share them with us in a timely manner, rather than having to wait for the investigation report etc etc - which is the whole purpose of the thread; which, to be frank, I thought was fairly obvious?
From what I have learnt since starting the thread is that there are various accounts of the information you have shared already.




Sir Niall Dementia 16th Dec 2019 12:32

And WHOOPEE!! CAA SOC16 arrives in your in-box, to be completed by 31 December detailing how you conduct night off-airfield landings.

SND

Robbo Jock 16th Dec 2019 13:14

SASless, about twenty to thirty feet I'd guess :8

cyclic 16th Dec 2019 21:07


Originally Posted by Sir Niall Dementia (Post 10641184)
And WHOOPEE!! CAA SOC16 arrives in your in-box, to be completed by 31 December detailing how you conduct night off-airfield landings.

SND

....it is making the industry a safer place though.

EESDL 2nd Jun 2020 15:36

8-months since G-LAWX Incident - has anyone seen a report of findings / lesson learnt ?

OvertHawk 2nd Jun 2020 17:16


Originally Posted by EESDL (Post 10800111)
8-months since G-LAWX Incident - has anyone seen a report of findings / lesson learnt ?

AAIB website lists the incident as "Still under investigation" which would be as expected in terms of time frame.

EESDL 4th Jun 2020 11:35

Beggars belief that such a single-aircraft incident could take so long.
I guess we’re back to AAIB struggling to promulgate safety-related Information in a timely fashion.
I wonder if this is another COVID casualty or simply down to a lack of resources?

JulieAndrews 15th Oct 2020 08:03

Some news at least
https://www.gov.uk/government/news/s..._content=daily

heli14 15th Oct 2020 16:30

sounds vaguely similar to the Harrods Paul McCartney S76 incident a few years ago...

...an update on the ongoing AAIB investigation into a serious incident involving Sikorsky S-92A, G-LAWX, near Shipston-on-Stour, Warwickshire on 14 October 2019.

Whilst making an approach to a private landing site in conditions of reduced visibility the helicopter descended to within 28 ft of rising terrain close to a house. During the subsequent missed approach, at low indicated airspeed, engine torque increased to 131% and the pitch attitude of the helicopter was unstable. The helicopter then made a successful approach to the landing site without damage or injury.

To date no pre-existing mechanical defects have been identified that might have contributed to the occurrence.

The AAIB investigation of the occurrence has explored the operation of the helicopter, flight planning, organisational supervision, the regulatory requirements related to non-commercial complex helicopter operations in visual meteorological conditions, and the provision and effectiveness of terrain awareness and warning systems in the onshore helicopter environment.

A full report of the investigation will be published in due course.
I know they are not the AOC operator but are Harrods are still involved in the management/private operation of G-LAWX (they were a few years ago) or have all operations switched to the current AOC holder?

212man 15th Oct 2020 20:45


Originally Posted by heli14 (Post 10905194)
sounds vaguely similar to the Harrods Paul McCartney S76 incident a few years ago...

I know they are not the AOC operator but are Harrods are still involved in the management/private operation of G-LAWX (they were a few years ago) or have all operations switched to the current AOC holder?

my thoughts too. Plus this one https://assets.publishing.service.go...BYPA_11-08.pdf

Reflex 16th Oct 2020 07:29

Harrods have had nothing to do with the operation of GLAWX for at least 5 years.
The only Harrods input is the maintenance and hangarage

bellboy 19th Oct 2020 11:35

operator
 
Starspeed me thinks

Napoleon1 15th Nov 2020 17:34

S-92A G-LAWX Anniversary Statement AAIB
 
UPDATE - NOT ABLE TO POST URL as have not posted at least 10 times. !

GOV.UK
SIKORSKY S-92A
G-LAWX
ANNIVERSARY STATEMENT

Bravo73 15th Nov 2020 19:20

Don’t worry, Boney. The link was posted 5 posts above your’s. ;)

Helimuttslovechild 18th Nov 2020 08:15


Originally Posted by Reflex (Post 10905527)
Harrods have had nothing to do with the operation of GLAWX for at least 5 years.
The only Harrods input is the maintenance and hangarage

Did Starspeed ‘take’ the IMC letdown that you and ST used to fly in GLAWX though when they took over operating the aircraft 🤔

JulieAndrews 18th May 2021 20:29

ok - this is ridiculous - still nuffink! negates the point of an investigation if timing is not an issue........

Roger out 17th Jun 2021 16:25

The AAIB Serious Incident report into G-LAWX has now been published on the AAIB website. I am afraid I am not allowed to post any links yet so google will have to be your friend. Suffice to say that it makes some pretty eye-watering reading!

Ex Machina 17th Jun 2021 18:17

https://www.gov.uk/aaib-reports/aaib...y-s-92a-g-lawx

ShyTorque 17th Jun 2021 23:22

That report is one of the most comprehensive I’ve read since I began flying, over forty five years ago.

Torquetalk 18th Jun 2021 08:12

Oh my.. Got lucky when luck wasn’t needed; just better decision-making and robust procedures. Simply astounding that a second approach was attempted after the first was so badly managed; and that one was also then badly managed.

The decision to fly manually seems suggestive of a lack of familiarity and confidence in using the automatics. With less than 500 on type and few hours on-type in the period pre-incident, versatility and confidence in using the AFCS to full advantage may have been lacking. This was also accepted by the more experienced pilot on type, who was also a commander. Given the seniority in the company of the commander on the day, it is hard to escape the impression that the P2 went along with a lot more that they should have. In fairness, irrespective of culture and hierarchy, SOPs on challenge and intervention are often not very comprehensive, specifying a very narrow set of deviation parameters, which offer little help for a broader set of circumstances which can be implicitly dangerous and need action. The flight read anything but safe and well-judged.

Glad all came out of it safely and provided us with things to learn from.


Jwscud 18th Jun 2021 09:14

As a fixed wing pilot with corporate experience this reads to me frighteningly close to the N303GA accident in Aspen

Very lucky indeed.

ApolloHeli 18th Jun 2021 11:49

I think the Safety Recommendation 2021-027 stands out and I believe that PinS approaches should be widely developed and be available for civil onshore helicopter operations. Planning and flying IFR en-route and provides a black & white 'visual, landing' or 'go around' decision at the end of an instrument procedure, which offers easier decision making than scud running and saying "I'm just going to try one more mile" (in my opinion).

I believe that knowing that the flight would be IMC and planning to use a PinS approach at the end also makes the possibility of not reaching the destination due to weather much more difficult to ignore and necessitates a back-up IFR diversion, which in this case seemed to have been ignored as the possibility of IIMC was not considered and Wellesbourne was discussed as the diversion (Birmingham was only brought up by the crew as a diversion once they had already gone IIMC).

paco 18th Jun 2021 12:03

Do we as helicopter pilots have a mass self-esteem problem or something? You would be daft to try this in a 206, that is getting the customer through bad weather, let alone something a lot bigger. Why do we keep thinking we have to solve other peoples' problems? If the weather is bad, that's it, go by car.

What is the point of us teaching our students that this is not part of the service we should be providing? This flight should have been thrown away a lot earlier, and I speak as a corporate pilot of many years' standing.

ShyTorque 18th Jun 2021 12:34

In jobs like this, where the weather goes against you, the pressure to go is always present or implied, much more so than in the airline world. The pilot has the option of possibly being stood up against the wall by the CAA, if it goes badly wrong, or directly on the day by the customer if a more cautious no-go option is chosen. I've often taken the latter option and then been taken to task by the aircraft owner, who after the event asks the opinions of non experts, such as his estate manager or taxi driver and tells you it was the wrong choice because "You would have got in".

Such is the lot of the corporate heli pilot and one needs to have very broad shoulders.


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