DIY Instrument Approaches
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Page 31 is interesting!
But this accident wasn't caused by a GPS fault.
quote:
Primary Cause
The primary cause of the accident was the loss of situational awareness which prompted the PNF's decision to deviate from the programmed route when he instructed the PF to delay the turn on to the final segment of the approach to the missed approach point, waypoint MAP, by maintaining a heading of south at waypoint WARRN, and his subsequent failure to monitor the aircraft's rate of turn when he initially instructed the PF to execute the turn.
and some other extracts
The flight was conducted using GPS as the prime navigation aid, and in the later portion used GPS as the sole approach aid, in violation of UK Regulations in force at the time of the accident.
.... and then goes on to say ........
3.1.28 The GPS system functioned correctly and accurately on the flight.
But this accident wasn't caused by a GPS fault.
quote:
Primary Cause
The primary cause of the accident was the loss of situational awareness which prompted the PNF's decision to deviate from the programmed route when he instructed the PF to delay the turn on to the final segment of the approach to the missed approach point, waypoint MAP, by maintaining a heading of south at waypoint WARRN, and his subsequent failure to monitor the aircraft's rate of turn when he initially instructed the PF to execute the turn.
and some other extracts
The flight was conducted using GPS as the prime navigation aid, and in the later portion used GPS as the sole approach aid, in violation of UK Regulations in force at the time of the accident.
.... and then goes on to say ........
3.1.28 The GPS system functioned correctly and accurately on the flight.
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IO540, You are missing some salient points I feel.
But if they had used INS, Loran or Decca that would have been OK. Thats against IFR flight rules. If we can ignore that for a second, it also says that descending below the MSA's and doing a home made Approach was not illegal.
Yes he was off course, but it sounded like there would have been a very small deflection on the HSI which was coupled to the GPS. The point being that if this had been a properly surveyed approach, this would have been taken into account. You don't tend to see many instrument approaches up valley inlets do you though?
On a seperate note, its scary to see an accident like that happen with the amount of experience on board. Thicker end of Over 10,000 hrs experience between them all.
The flight was conducted using GPS as the prime navigation aid, and in the later portion used GPS as the sole approach aid, in violation of UK Regulations in force at the time of the accident.
Yes he was off course, but it sounded like there would have been a very small deflection on the HSI which was coupled to the GPS. The point being that if this had been a properly surveyed approach, this would have been taken into account. You don't tend to see many instrument approaches up valley inlets do you though?
On a seperate note, its scary to see an accident like that happen with the amount of experience on board. Thicker end of Over 10,000 hrs experience between them all.
To fly a GPS NPA safely and succesfully requires a lttle more preparation than bunging a few waypoints in the box. Designed properly, and coded correctly in a read-only database, the receiver carries out automatic functions other than pure navigation. The CDI (and HSI if integrated) sensitivity changes at critical points in the procedure, as does the RAIM functionality.
If the DIYer does not understand this, then history may well repeat itself.
If the DIYer does not understand this, then history may well repeat itself.
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Using this thread and following on from an 'IMC diary' thread on
the Private Flying Forum, what's the view of instructors and more
specifically examiners on using an-published procedure as part of an IMC test?
7700
Apologies for the finger trouble..........
Using this thread and following on from an \'IMC diary\' thread on
the Private Flying Forum, what\'s the view of instructors and more
specifically examiners on using an un-published procedure as part of an IMC test?
7700
the Private Flying Forum, what's the view of instructors and more
specifically examiners on using an-published procedure as part of an IMC test?
7700
Apologies for the finger trouble..........
Using this thread and following on from an \'IMC diary\' thread on
the Private Flying Forum, what\'s the view of instructors and more
specifically examiners on using an un-published procedure as part of an IMC test?
7700
