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> I am having difficulty with the prop
shops up here in Canada
You probably would have difficulties
with prop shops all over the world. Hartzell Standard Practices Manual
202A states that if a blade is damaged beyond repair, the hub has to be
retired as well.
I have tested the seriousity of this
statement face to face with a reputable prop shop and the result was:
History:
Being a cheap fellow, I bought a set
of loose blades overseas and a loose hub at the local airfield. The hub
had been on the shelf for countless years and nobody remembered where it
came from, but it might have suffered a strike. I sent the hub to the shop
for an OH, telling the guy that I had no idea where it came from, but it
probably had suffered a strike. A few days later the guy called me and
the conversation turned out something like this:
I am sorry to have to inform you,
that we are not able to issue a form 8130 on your hub.
Why not, I assumed
an OH would make it airworthy???
Negative, if it has suffered a
strike, it has to be retired due to 202A.
What if it has
not been involved in a prop strike, but we simply do not know where it
comes from?
That is another story, in that
case another SB states that we have to overhaul it, regardless of its condition,
and then we can release it to service.
Hmmm..... Nice......
Excactly how effective are the inspection procedures?
Well, the SB states that the hub
can be released to service.
You already told
me that, but excactly how effective are the inspection procedures???
Well, we can dye penetrant, magnaflux
and a lot of other stuff that I did not understand and do it all twice,
that ought to be fairly effective.
Just how effective
is "fairly effective"???
Well, the SB states that the hub
can be released to service.
I ALREADY KNOW
THAT! Hmmm.... Ok: Would YOU happily fly behind this propeller after an
OH?
Nope, no type of inspection is
100%, but, provided that you are aware of this, if you tell us to OH your
hub we will go ahead and do it.
Lessons learned:
Lesson #1: If nobody gives a #&%¤
whether you live or not and you feel old ( or ugly ) enough do suffer
a violent death, take your disassembelled hub to another shop. Tell them
you don´t know where it comes from and have them OH it. Buy new (
or other ) blades and have the shop install them. You now have a serviceable
prop.
Make sure you are the first to die
in a prop related accident, otherwise someone elses widow can sue the #%&#
out of you!
I, for one, now have a very expensive
anchor block for my boat!
Lesson #2: In case the above does not
apply to you, buy a complete used propeller ( Piper Dakota uses the F2YR-1F
hub that also fits a 360 ) with a log book, sell the blades and spinner,
OH the hub and you will be ok.
I did this and feel good about it.
CHEAP IS GOOD, CHEAP AND SAFE IS BETTER!
Regards
Tim Jorgensen
360FB / 40%
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