N52BL Device Failure Analysis For Safe Continuation Of Flight
--> AeroElectric-List message posted by: "Robert L. Nuckolls, III" <bob.nuckolls@cox.net>
At 04:55 PM 8/8/2003 -0400, you wrote:
>--> AeroElectric-List message posted by: "Pat Hatch" <pat_hatch@msn.com>
>
>Bruce, I am not sure the DAR actually removes anything...I believe the
>standard limitations will read something to the effect "After completion of
>Phase 1 flight testing, unless appropriately equipped for night and /or
>instrument flight in accordance with part 91.205, this aircraft is to be
>operated under day only VFR It is up to you to make sure the aircraft is
>properly equipped for night IFR and you are good to go. I don't believe you
>should have to convince the DAR of anything in this regard.
. . . here's the neat thing about OBAM aircraft
configuration and construction. Take the simple idea
of a self-imposed requirement. "My airplane is fitted
and operated in a manner wherein no single failure
of equipment has a profound influence on the outcome
of any proposed flight."
Now, if one has all-the-eggs-in-one-basket type
of display, it's a relatively simple task to deduce
what alternative equipment and mode of operation will
get you back on the ground without breaking a sweat.
Write a failure mode effects analysis that discusses
exactly what you plan to do in case of failure of
ANY and all pieces of equipment. A few paragraphs that discuss
(1) how you will become aware of the failure, (2) is
the failure pre-flight detectable, (3) is that device
necessary for sweat-free continuation of flight,
(the discussion may stop here where you say, "not
necessary for comfortable continuation of flight)
and (4) what alternatives are supplied for replacing the
lost function if loss of equipment CAN make you
break a sweat.
This is a very simple exercise you should do for
yourself no matter who else may be invited to pass
judgment on your airplane. Believe me, those-who-
are-paid-to-protect-us-from-ourselves will be
surprised if not astounded to be presented with
such a document. It will be a black and white
demonstration that you know more about your airplane
than they do.
This has the effect of -BOTH- cooperating with
the spirit and intent of regulation -AND- ensuring
your personal familiarization and confidence
in the machine you operate. It's easy. You
can do it in the word processor. It can and
should speak to EVERY piece of equipment in
the cockpit and maybe some pieces under the
cowl as well. Treat it sorta like typing
and expanding on your notes after a lecture.
This exercise will go a long way for your
personal confidence and understanding. It'll
blow the socks off any bureaucrat that thinks
he's walking up to just another neophyte that
wants to get in that thing and put daylight
under the wheels.
This will go a long way toward earning their
respect and reducing any resistance they may
have toward turning you and your machine
loose on the rest of us unsuspecting citizens.
Bob . . .