ATR72 is damaged on ground by gpu.

Attributes
ACN	690827
Time
Date	200603
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : mia.airport
State Reference	FL
Altitude	agl single value : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	ATR 72
Operating Under FAR Part	Part 121
Flight Phase	ground : parked
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp pilot : commercial
ASRS Report	690827
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : commercial
ASRS Report	690828
Events
Anomaly	ground encounters other
Independent Detector	other flight crewa other flight crewb
Resolutory Action	none taken : anomaly accepted
Consequence	other
Supplementary
Problem Areas	Maintenance Human Performance
Primary Problem	Maintenance Human Performance

Narrative:

Upon reaching parking spot; aircraft was facing south; fully stopped with parking brake on; waiting for ramp personnel to move equipment. Ramp personnel driving a tug pulling 2 cargo wagons and gpu in rear; made sweeping 'U' in front of aircraft. At this point; gpu disconnected and headed toward #1 engine (left side). Tried to shut down engine before impact. The gpu and propeller impacted and debris was scattered. No one on board or on ramp sustained injury.

Original NASA ASRS Text

Title: ATR72 IS DAMAGED ON GND BY GPU.

Narrative: UPON REACHING PARKING SPOT; ACFT WAS FACING S; FULLY STOPPED WITH PARKING BRAKE ON; WAITING FOR RAMP PERSONNEL TO MOVE EQUIP. RAMP PERSONNEL DRIVING A TUG PULLING 2 CARGO WAGONS AND GPU IN REAR; MADE SWEEPING 'U' IN FRONT OF ACFT. AT THIS POINT; GPU DISCONNECTED AND HEADED TOWARD #1 ENG (L SIDE). TRIED TO SHUT DOWN ENG BEFORE IMPACT. THE GPU AND PROP IMPACTED AND DEBRIS WAS SCATTERED. NO ONE ON BOARD OR ON RAMP SUSTAINED INJURY.

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.