Pilot of new PC12 finds aircraft parking brake will not prevent aircraft movement at ground idle.

Attributes
ACN	672787
Time
Date	200509
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : mwh.airport
State Reference	WA
Altitude	agl single value : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	general aviation : personal
Make Model Name	PC-12
Operating Under FAR Part	Part 91
Flight Phase	ground : taxi
Flight Plan	IFR
Person 1
Affiliation	other
Function	flight crew : single pilot
Qualification	pilot : instrument pilot : flight engineer pilot : commercial pilot : cfi pilot : atp pilot : multi engine
Experience	flight time last 90 days : 50 flight time total : 9000 flight time type : 50
ASRS Report	672787
Person 2
Function	other personnel
Events
Anomaly	aircraft equipment problem : less severe ground encounters other other anomaly
Independent Detector	other other : 2
Resolutory Action	flight crew : regained aircraft control flight crew : overcame equipment problem
Consequence	other
Supplementary
Problem Areas	Aircraft Flight Crew Human Performance
Primary Problem	Aircraft

Narrative:

New airplane. Cannot rely on parking brake to hold aircraft (pilatus) at ground idle. Moved ahead about 15 ft until noticed by us and guide. Used to airline jets with parking brakes that hold aircraft. Lesson learned. Although pilatus pc-12 is very advanced and full of EFIS; etc; the parking brake is not as advanced; will assume toe brakes are applied.

Original NASA ASRS Text

Title: PLT OF NEW PC12 FINDS ACFT PARKING BRAKE WILL NOT PREVENT ACFT MOVEMENT AT GND IDLE.

Narrative: NEW AIRPLANE. CANNOT RELY ON PARKING BRAKE TO HOLD ACFT (PILATUS) AT GND IDLE. MOVED AHEAD ABOUT 15 FT UNTIL NOTICED BY US AND GUIDE. USED TO AIRLINE JETS WITH PARKING BRAKES THAT HOLD ACFT. LESSON LEARNED. ALTHOUGH PILATUS PC-12 IS VERY ADVANCED AND FULL OF EFIS; ETC; THE PARKING BRAKE IS NOT AS ADVANCED; WILL ASSUME TOE BRAKES ARE APPLIED.

Data retrieved from NASA's ASRS site as of January 2009 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.