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Airline / Aircraft Location and Date Photographer
Private
McKinnon G-21 (All Models) Turbo Goose
 Columbus - Port Columbus International (CMH/KCMH)
USA - Ohio, May 21, 2011		 richillini
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Registration/Serial No. | Remarks & Notes
N77AQ (cn 1205) AeroPlanes LLC operates this, one of only three flying McKinnon G-21's. Built in 1969. Heading southwest from CMH.


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Rajay August 25, 2011 at 05:38PM Rating: 6
It wasn't just "converted" in 1969, it was completely "rebuilt" and re-certified under a different type certificate as a completely "new" (i.e. "zero-time") aircraft, which effectively erased all of its previous "time-in-service" between 1944 and 1969.

Rajay August 25, 2011 at 05:38PM Rating: 6
It wasn't just "converted" in 1969, it was completely "rebuilt" and re-certified under a different type certificate as a completely "new" (i.e. "zero-time") aircraft, which effectively erased all of its previous "time-in-service" between 1944 and 1969.

Chuck Slusarczyk Jr. July 2, 2011 at 09:20PM Rating: 8
Wow...thanks so much for the details on this plane, and I understand what you mean about not technically being a Grumman. Sounds like you've got the history of this birds down-pat...thanks for posting!

Rajay July 2, 2011 at 05:45PM Rating: 6
Technically not correct to still refer to it as a "Grumman" - once it was converted by McKinnon under his separate type certificate (4A24), it was no longer still a Grumman under its original TC (654).

Plus, there were only ever two (2) McKinnon G-21G Turbo Gooses actually built by McKinnon Enterprises - this one and s/n 1226, N70AL.

Until recently, there were also two additional turbine Goose conversions that the owners claimed were also McKinnon products, but they really were NOT; they were really built by others besides McKinnon. The first was built by the Fish & Wildlife Service of the US Dept. of the Interior in Alaska between 1969 and 1975. The other was "upgraded" by a private owner (with no FAA Part 21 manufacturing authority and no engineering data approved separately under FAR Part 43 for maintenance or modifications) between 2001 and 2005.

The first "pretender" (the ex-FWS turbine Goose) crashed at the end of February in the United Arab Emirates, killing all four people aboard.

Chuck Slusarczyk Jr. May 22, 2011 at 04:34AM Rating: 8
Cool catch! I had an inkling that 1969 was much too recent for the build date, so I looked it up and it turns out that the airframe is from 1944 when it was built for the US Navy as frame Bu.37809. It was in 1969 that it was converted to a "Turbo Goose" by McKinnon. Cool stuff...thanks Rich!