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From: Patrick Bridge <patrickbridge@hotmail.com>
Subject: Re: [LML] More thoughts on canopy problems

Mike

Everyone is entitled to his or her own opinions. However, in my day job as a=
 QTP when we identify a deficiency, our first action is always to have the =E2=
=80=98Engineers=E2=80=99 explore an engineering fix (as per Fred=E2=80=99s c=
omments). If an engineering fix is too expensive, too heavy or introduces ot=
her issues, then we consider appropriate warnings, interlocks, etc. Only as a=
 last resort will we consider procedural fixes (ie checklists).

This is taught in Test Piloting 101 at USNTPS, USAFTPS, NTPS and ETPS.

With this issue, relying only on a checklist or a warning light makes the pi=
lot the last link in the chain, and as pilots are human and subject to error=
, there will be more of these incidents and more loss of life. An engineerin=
g fix may cost a few hundred dollars, but if well thought-out, simple and sa=
fe to use, it will eliminate further loss of life due to this issue. What is=
 a life worth?

I personally congratulate Fred for generating some discussion and thought. L=
ets just hope someone runs with it for all Legacy owners to hopefully benefi=
t.=20

Regards

Pat Bridge

Sent from my iPad

On 07/11/2013, at 1:58, Mike's Gmail <legacyl2k@gmail.com> wrote:

> Fred,
>=20
> Get some more experience in flying vs engineering.  Their are so many syst=
ems on many varieties of aircraft that will kill you if you over look your p=
reflight responsibilities.  You can put a band-aid on this problem but how a=
re you going to remember to put the band-aid on.  Also since your not able o=
r willing to test the airplane in a realistic way.  How are you going to val=
idate that your band-aid is up to the task.  BTW, what is the force required=
 to hold the canopy closed. =20
>=20
> In my humble opinion, a warning system would have saved everyone of these p=
ilots.
>=20
> I have flown 3 4P turbs, 2 4P's, 4 ES's, 13 Legacy's, 7 320/360's, 1 235. =
 Do you know how many had a canopy/door/ cargo door unlocked warning system.=
  2!  And one was not function when I started the test program.
>=20
> Many aircraft will not fly if not properly prepared for flight.  Over 3000=
 airline flights are performed a day in the US.  All of these airplanes requ=
ier proper preparation prior to flight.  All of which will not fly without f=
laps set for takeoff.  The primary causal factor to these accidents are lack=
 of pilot discipline, poor or no procedures in place, and poor or inadequate=
 indication/safety systems.
>=20
> You can't engineer discipline.
>=20
> Mike Larkin
>=20
> Sent from my iPhone
>=20