The FI limits apply to those with fatigue meters and the hours
limitation relates primarily to those without fatigue meters (Hong Kong,
Botswana, Ghana, and ???).
BAe sent out several notices with the details and required mods, I'm
sorry I can't refer to the actual documents and be more precise but I
can't find them at the moment!
I'll put a pointer to this thread on uk.rec.aviation, maybe somebody
there has easy access to the docs and the facts rather than relying on
my poor memory.

--
Dave S
(The email account is a dummy for anti-spam purposes, please reply via
the newsgroup)
"Jonathan Burke" <jon@argyle-design.com> wrote in message
news:3CD88277.D9AAF587@argyle-design.com...
> I'm unsure about the 'hours' issue- I've never heard anyone pegthe
life to
> a specific number of hours on the airframe. I believe the issue was
the
> 'fatigue index' which had some kind of couter. It is this index to
which
> I'm refering- not hours flown.
>
> -Jonathan Burke
>
> Dave wrote:
>
> > The spar life limitation (around 4500 hours, I can't remember the
exact
> > number) was imposed after British Aerospace (owners of the type
> > certificate) tested two airframes and had them both start to fail
> > "shortly after" 5000 hours.
> > The spar mod is a one-shot which extends the airframe life to 8760
> > hours, it was initially estimated to cost 20kGBP but I believe the
price
> > has fallen slightly recently.
> >
> > The RAF flew most of them to slightly over the BAe specified fatigue
> > index and then sold them.
> > --
> > Dave S
>

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