G5 flight crew unstabilized approach results in a missed approach to mry.

Attributes
ACN	612111
Time
Date	200403
Day	Sun
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : mry.airport
State Reference	CA
Environment
Flight Conditions	Mixed
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : nct.tracon tower : mry.tower tower : zzz.tower
Operator	general aviation : corporate
Make Model Name	Gulfstream V
Operating Under FAR Part	Part 91
Navigation In Use	ils localizer & glide slope : 10r other
Flight Phase	descent : approach landing : go around
Route In Use	approach : instrument precision arrival : on vectors
Flight Plan	IFR
Person 1
Affiliation	company : corporate
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 25 flight time total : 11500 flight time type : 500
ASRS Report	612111
Person 2
Affiliation	company : corporate
Function	flight crew : first officer
Events
Anomaly	aircraft equipment problem : less severe inflight encounter : weather non adherence : company policies other anomaly
Independent Detector	other flight crewa other flight crewb
Resolutory Action	controller : issued new clearance flight crew : executed missed approach flight crew : became reoriented
Consequence	faa : reviewed incident with flight crew
Supplementary
Problem Areas	Aircraft Flight Crew Human Performance
Primary Problem	Flight Crew Human Performance

Narrative:

While being vectored for the approach intercept, I advised the PF that we were too high for the approach intercept. He said we could continue and referenced his FMS showing 20 mi to the airport. Our attention was diverted as to why the ILS DME's were showing approximately 13 mi. We were cleared for the approach and intercepted the localizer but were high on the GS. Over the OM, I again advised the PF we were too high for the approach. He again assured me we 'would make it.' upon picking up ground contact, it was clear that we were too high to land. I instructed the PF to go around. Tower was advised and we were instructed to fly the published missed approach. We were vectored back for another ILS approach and landed. The initial distraction between the FMS distance and raw data DME contributed to fixation on why they were different. The PF also disregarded my 2 attempts for new vectors or go around.

Original NASA ASRS Text

Title: G5 FLT CREW UNSTABILIZED APCH RESULTS IN A MISSED APCH TO MRY.

Narrative: WHILE BEING VECTORED FOR THE APCH INTERCEPT, I ADVISED THE PF THAT WE WERE TOO HIGH FOR THE APCH INTERCEPT. HE SAID WE COULD CONTINUE AND REFED HIS FMS SHOWING 20 MI TO THE ARPT. OUR ATTN WAS DIVERTED AS TO WHY THE ILS DME'S WERE SHOWING APPROX 13 MI. WE WERE CLRED FOR THE APCH AND INTERCEPTED THE LOC BUT WERE HIGH ON THE GS. OVER THE OM, I AGAIN ADVISED THE PF WE WERE TOO HIGH FOR THE APCH. HE AGAIN ASSURED ME WE 'WOULD MAKE IT.' UPON PICKING UP GND CONTACT, IT WAS CLR THAT WE WERE TOO HIGH TO LAND. I INSTRUCTED THE PF TO GO AROUND. TWR WAS ADVISED AND WE WERE INSTRUCTED TO FLY THE PUBLISHED MISSED APCH. WE WERE VECTORED BACK FOR ANOTHER ILS APCH AND LANDED. THE INITIAL DISTR BTWN THE FMS DISTANCE AND RAW DATA DME CONTRIBUTED TO FIXATION ON WHY THEY WERE DIFFERENT. THE PF ALSO DISREGARDED MY 2 ATTEMPTS FOR NEW VECTORS OR GAR.

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.