Altitude deviation, excursion from assigned altitude by a foreign pilot flying a PA46 under D01 TRAC...

Attributes
ACN	616406
Time
Date	200405
Day	Wed
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : d01.tracon
State Reference	CO
Altitude	msl bound lower : 10000 msl bound upper : 13000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : d01.tracon
Operator	general aviation : personal
Make Model Name	PA-46 Malibu
Operating Under FAR Part	Part 91
Flight Phase	descent : approach descent : vacating altitude
Route In Use	approach : visual arrival : on vectors
Person 1
Affiliation	government : faa
Function	controller : approach
Qualification	controller : radar
Experience	controller radar : 15 controller supervisory : 2 controller time certified in position1 : 4 flight time total : 64
ASRS Report	616406
Person 2
Affiliation	government : faa
Function	controller : approach
Events
Anomaly	altitude deviation : excursion from assigned altitude non adherence : clearance
Independent Detector	atc equipment other atc equipment : mode c other controllera
Resolutory Action	controller : issued advisory
Consequence	faa : reviewed incident with flight crew
Supplementary
Problem Areas	Flight Crew Human Performance ATC Human Performance
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

I was working arrival and departure combined. The foreign pilot checked on at 13000 ft. I told him to expect visual approach runway 17R. I briefed the next controller to watch him at 13000 ft. The pilot then descended to 10000 ft without a clearance. After talking to the pilot, he heard visual approach, but missed the word 'expect.' I shall be more vigilant with foreign pilots.

Original NASA ASRS Text

Title: ALTDEV, EXCURSION FROM ASSIGNED ALT BY A FOREIGN PLT FLYING A PA46 UNDER D01 TRACON JURISDICTION.

Narrative: I WAS WORKING ARR AND DEP COMBINED. THE FOREIGN PLT CHKED ON AT 13000 FT. I TOLD HIM TO EXPECT VISUAL APCH RWY 17R. I BRIEFED THE NEXT CTLR TO WATCH HIM AT 13000 FT. THE PLT THEN DSNDED TO 10000 FT WITHOUT A CLRNC. AFTER TALKING TO THE PLT, HE HEARD VISUAL APCH, BUT MISSED THE WORD 'EXPECT.' I SHALL BE MORE VIGILANT WITH FOREIGN PLTS.

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.

Altitude deviation, excursion from assigned altitude by a foreign pilot flying a PA46 under D01 TRACON jurisdiction.