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Airplane accident close to San Sebastián - G-OARI

Ibra wrote:

Not sure, but probably an advice that applies even to “VFR only pilot/aircraft” even those who had just 30 min under the hood or not instrument equipped, the other alternative is to pull a “forced landing” but on the above picture not sure there is a suitable field?

Every now and then someone gets caught by “surprise” by terrain and clouds. In most cases when the pilot decides to go ahead it ends bad. Turn around or land at first opportunity seems to be the only viable solution because:

  • It’s usually too late to get on top safely. (icing, unknown thickness of cloud layer, not equipped or trained to fly in IMC, the pilot is not prepared it’s done in panic)
  • Maneuvering in a maze of valleys with clouds covering the tops is difficult and requires practice even if you know the terrain well. You also need an aircraft capable of doing it (Cub type, microlight, good maneuverability at slow speed and ability to land “everywhere”). Depending on the terrain, it may not even be doable.
  • The pilot is unknown to the very concept of terrain and clouds, or he/she would have made a different decision long before getting caught up in it. The combination of pilot, aircraft, terrain and weather/cloud/visibility is bad from the start.

There are only two ways this can be done. Flying below the clouds if terrain allows, and with the correct type of aircraft. Flying IFR/on top. In both cases this requires planning and training. IMO it’s one of the cases that ends bad if you have not planned for it, and have chosen one of the two solutions well up front. But if you get caught, I would also believe flying up is better than staying low.

As a VFR only pilot, would I ever willingly fly up into IMC to avoid terrain? I’m not sure I ever would do it. I know VFR, and I would most probably try to find a solution with what I know. The solution would either be to fly back, or find a place to land. The threshold of flying up into IMC (into the unknown) is very high. How to get back down again? I think I would solve the problem before I would be forced to do that.

The elephant is the circulation
ENVA ENOP ENMO, Norway

Jujupilote wrote:

It’s a picture taken in this area

That doesn’t look bad. But, the terrain looks very tight and compact with low hills (judging by the picture). If the cloud base covers the tops of those hills, I think only a helicopter could do VFR safely due to the small range in altitude.

The elephant is the circulation
ENVA ENOP ENMO, Norway

The problem with climbing up into IMC is that you don’t know there is an even bigger hill coming up. So you do need a good terrain map. The tablet apps are poor at showing elevations; we had some previous threads on this here.

Administrator
Shoreham EGKA, United Kingdom

What do we know about the qualifications of the accident pilots?

You can get the same type of display as in certified GPS. Essentially don’t go towards Red / orange / yellow.

I think that is really enough to find and escape way (if there is one). The problem mostly being that in a high stress area it’s reasonably likely you won’t be looking a much at the tablet because you’ll be focused on flying. Or the inverse.

Don’t fear on my life, im on ski lift

Ibra wrote:

If icing exhibit so much sensitivity to 1000ft/500ft change in height (compared to terrain clearance), then you should not be flying that day: one does not disintegrate in pieces by flying into ice just above MSA, however hitting a hill is a different matter

Indeed. If you have to go into IMC while on a VFR flight as an emergency, you have to climb above the MSA. Anything else is just hope.

EGTK Oxford

Airborne_Again wrote:

No it is not obvious! Believe me, people did XC flights in mountainous terrain before we had GPS and they didn’t have CFIT all the time. No doubt that GPS makes it safer — and allows you to launch in less perfect weather than you would otherwise have done.

A difficult view to be discussed in more detail. Yes, they flew in much worse weather in the mountains without GPS and they did not hit them frequently. GPS does have the potential to make it safer, but, big BUT, it allows not only to launch in less perfect weather (which may render the benefit useless already) it also attracts less skilled pilots in the air at less perfect weather. I somehow doubt there is a big impact by using GPS other than more people flying at weather they never would without GPS (which is also true for good weather conditions, more less skilled in the air).

dejwu wrote:

I somehow doubt there is a big impact by using GPS

The main problem when flying in rough terrain and poor visibility and/or low clod base, is getting lost, disoriented. Valleys and fjords all look the same in poor vis. This will in turn probably increase the chances of CFIT or VFR into IMC. With GPS/moving map the era of getting lost is long gone. It’s been ages since I have heard of anyone getting lost, but this was common before.

Noe wrote:

The problem mostly being that in a high stress area it’s reasonably likely you won’t be looking a much at the tablet because you’ll be focused on flying

IMO all those warnings are nuisances. I keep them all off. Flying IFR they probably has a merit.

The elephant is the circulation
ENVA ENOP ENMO, Norway

JasonC wrote:

If you have to go into IMC while on a VFR flight as an emergency, you have to climb above the MSA. Anything else is just hope.

Absolutely. I’ll go a step further – I speculate that almost every single CFIT in IMC event had a get out of jail moment; the pilot went beyond a decision point having made the wrong decision. GPS terrain displays should assist in making that decision but should not offer the opportunity to delay the decision.

Last Edited by Dave_Phillips at 12 Jan 14:45
Fly safely
Various UK. Operate throughout Europe and Middle East, United Kingdom

This is a photo from a tweet apparently made during the flight. It shows an alternator failure.

The ALT warning light is on and the ammeter shows zero. (On PA28s the ammeter shows alternator current.)

Tweet

Last Edited by Airborne_Again at 12 Jan 15:40
ESKC (Uppsala/Sundbro), Sweden
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