Blue Water Aviation plane down North of Winnipeg

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PilotDAR
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Re: Blue Water Aviation plane down North of Winnipeg

Post by PilotDAR »

Evidently all Otters in Canada have been grounded pending the results of the accident investigation.
I wonder what regulatory mechanism has been used for this action? The only means I know of for TC to ground a type would be an AD. I've looked, and cannot find an AD to this effect.
seasonaldriver - Admittedly I got it third hand but from a fairly reliable non gov. source.
Would seasonaldriver please tell us exactly where to look for this important information, or withdraw the remark? There really is no middle ground here....
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seasonaldriver
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Re: Blue Water Aviation plane down North of Winnipeg

Post by seasonaldriver »

Hey PilotDAR
I did mention it was third hand
Perhaps I should also have mentioned it was verbal
I suspect that it is not official yet but very likely to happen.
I don’t think they’re grounded, but there’s a Safety Bulliten to inspect the struts/fittings/bolts, etc before its next flight.
That is best info available at this time as far as I know.
I have lots of time flying Otters and it sends a chill up my spine thinking about a wing falling off in flight.
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PilotDAR
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Re: Blue Water Aviation plane down North of Winnipeg

Post by PilotDAR »

I don’t think they’re grounded, but there’s a Safety Bulliten to inspect the struts/fittings/bolts, etc before its next flight
Is what I'm referring to when I seek an actual document. Is there a safety bulletin number?

On occasion, there is a sudden understanding that a particular feature of an aircraft should receive an extra, or different inspection, (sadly, usually the result of an accident). Perhaps Viking has issued a Service Bulletin to inspect a feature of the Otters. Such an SB could have been issued, and that would be of interest to the group, hence my question. It could be made mandatory by an AD, if TC determines that is appropriate. If the third hand does not actually have this document, speculating about/imagining it really does no one any good.

In the mean time, the quoted statement above is troublesome, and self ambiguous. In regulatory wording, if actually official (which at this point, I don't see) "don't think they're grounded" does not jive with "inspect before next flight" - 'cause that really would be like being grounded, if it were indeed authoritative.

I will wait with interest as others to see if there is official word on any required inspections of Otters.
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7ECA
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Re: Blue Water Aviation plane down North of Winnipeg

Post by 7ECA »

If there had been a fleet wide grounding of the DHC-3 series of aircraft, that would have at the very least made the news - and certainly would have seen some sort of a release from Transport Canada.

On the subject of ADs, I seem to recall one used to be able to access the database freely to poke around (CAWIS, I think was the acronym), although it looks like that's been now made into a login only service...

The most recent safety alert for the Otters was back in September for when one of the HA birds blew an elephant leg. I've heard rumours they're getting or going through some sort of a modification or STC to replace the elephant legs with a newer strut system.
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Capt. Underpants
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Re: Blue Water Aviation plane down North of Winnipeg

Post by Capt. Underpants »

I monitor airworthiness directives and bulletins out of TC and there hasn't been a peep of anything to do with an apparent wing failure on an Otter.
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Last edited by Capt. Underpants on Tue Dec 03, 2019 7:04 pm, edited 1 time in total.
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Re: Blue Water Aviation plane down North of Winnipeg

Post by Jiggly Bus »

Viking ASB V3-0011 Rev NC
DHC-3-AOM-57-006
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Re: Blue Water Aviation plane down North of Winnipeg

Post by peterdillon »

As aircraft operators or owners I think the main thing we want to know is what happened and why and how it can be avoided and not wait for years to find out while we fly the same aircraft. I don't have sources that I am prepared to name for their sake but the lower fork end - strut let go. Other struts have been removed from other flying Otters with visible cracks in the lower strut fork where it goes into the strut. If you think this is premature gossip or rumour just relax and wait for the report.
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Re: Blue Water Aviation plane down North of Winnipeg

Post by JigglyBus »

Jiggly Bus wrote: Tue Dec 03, 2019 1:35 pm Viking ASB V3-0011 Rev NC
DHC-3-AOM-57-006
What the....
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Re: Blue Water Aviation plane down North of Winnipeg

Post by PilotDAR »

Yes, agreed, that is a significant service bulletin, and states that an AD is a possibility. So it's not an AD yet, but obviously an operator would have a hard time explaining why they continued to fly an Otter with that SB applicable, other than to ferry it for inspection.

It's a better thing in these posts to quote actual issued documents, as others may take what they read here to be "factual". Obviously, there is truth behind the earlier comment, now that we have the SB.
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Re: Blue Water Aviation plane down North of Winnipeg

Post by Maynard »

Sorry I would’ve quoted the ASB number but didn’t have it on hand at the time. I also heard from a reliable source it was the lower strut that failed. Hence why a lot of the focus on the SB is directed to that area.
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Re: Blue Water Aviation plane down North of Winnipeg

Post by pelmet »

C-GBTU, a de Havilland DHC-3T (powered by a GE/Walter M601E-11 turbine engine) operated by
Blue Water Aviation Services, was conducting a flight from Bissett (CJY6), MB to Family Lake near
Little Grand Rapids, MB with 1 pilot and 2 passengers on board. As C-GBTU was turning final for
the water at Family Lake the right wing became detached from the fuselage. The aircraft entered
an uncontrolled descent and collided with the water surface. JRCC and RCMP responded. The
pilot and 2 passengers sustained fatal injuries.
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Re: Blue Water Aviation plane down North of Winnipeg

Post by Heliian »

7ECA wrote: Tue Dec 03, 2019 12:45 pm If there had been a fleet wide grounding of the DHC-3 series of aircraft, that would have at the very least made the news - and certainly would have seen some sort of a release from Transport Canada.

On the subject of ADs, I seem to recall one used to be able to access the database freely to poke around (CAWIS, I think was the acronym), although it looks like that's been now made into a login only service...

The most recent safety alert for the Otters was back in September for when one of the HA birds blew an elephant leg. I've heard rumours they're getting or going through some sort of a modification or STC to replace the elephant legs with a newer strut system.
CAWIS is an open service for anyone, you can search with a registration or for type. As of this post, there are no new AD's on the DHC 3
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7ECA
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Re: Blue Water Aviation plane down North of Winnipeg

Post by 7ECA »

Heliian wrote: Mon Dec 16, 2019 5:05 am CAWIS is an open service for anyone, you can search with a registration or for type. As of this post, there are no new AD's on the DHC 3
My mistake, I neglected to dig around the site to find the search function for non-login users.
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FishermanIvan
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Re: Blue Water Aviation plane down North of Winnipeg

Post by FishermanIvan »

Curious as to where you found that accident summary. I couldn’t find it on the CADORS website.
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Re: Blue Water Aviation plane down North of Winnipeg

Post by onceacop »

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Re: Blue Water Aviation plane down North of Winnipeg

Post by W5 »

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Re: Blue Water Aviation plane down North of Winnipeg

Post by rigpiggy »

Well considering this was a pre existing crack, this is more a maintenance issue than a design one. Here is the ad. TC has issued AD CF‑2020-20. However fwics it is still just a visual inspection, would not a removal/ndt every 1000 hrs be the way to go? Hell we did wing bolts on the F27 every C check, that required jigs and scaffolds
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