G-iv flight crew questions variation between approach plate minimums and FMC minimums.

Attributes
ACN	553597
Time
Date	200207
Day	Mon
Local Time Of Day	0601 To 1200
Place
State Reference	AK
Altitude	msl single value : 2600
Environment
Flight Conditions	IMC
Weather Elements	Rain
Light	Daylight
Aircraft 1
Operator	general aviation : corporate
Make Model Name	Gulfstream IV
Operating Under FAR Part	Part 91
Navigation In Use	other other ndb
Flight Phase	descent : approach
Route In Use	approach : instrument non precision
Flight Plan	IFR
Person 1
Affiliation	company : corporate
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 60 flight time total : 5000 flight time type : 1200
ASRS Report	553597
Person 2
Affiliation	company : corporate
Function	flight crew : first officer
Events
Anomaly	aircraft equipment problem : less severe other anomaly other
Independent Detector	other flight crewa
Resolutory Action	none taken : anomaly accepted
Consequence	other
Supplementary
Problem Areas	Company Flight Crew Human Performance Chart Or Publication Aircraft
Primary Problem	Company

Narrative:

Putting the NDB approach out of the FMS shows minimums considerably lower than the minimums published on the actual approach plate. This can lead a crew into thinking that the lower minimums are acceptable when they only apply to specially trained crews. More emphasis should be placed on these differences.

Original NASA ASRS Text

Title: G-IV FLC QUESTIONS VARIATION BTWN APCH PLATE MINIMUMS AND FMC MINIMUMS.

Narrative: PUTTING THE NDB APCH OUT OF THE FMS SHOWS MINIMUMS CONSIDERABLY LOWER THAN THE MINIMUMS PUBLISHED ON THE ACTUAL APCH PLATE. THIS CAN LEAD A CREW INTO THINKING THAT THE LOWER MINIMUMS ARE ACCEPTABLE WHEN THEY ONLY APPLY TO SPECIALLY TRAINED CREWS. MORE EMPHASIS SHOULD BE PLACED ON THESE DIFFERENCES.

Data retrieved from NASA's ASRS site as of July 2007 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.