Jac ramp agent reported aircraft damage due to contact with a gpu during gate arrival when the fligh...

Narrative:

During an ongoing snow event; airport operations failed to maintain and or assess and properly NOTAM apron conditions. A part 121 air carrier taxied onto the apron and skidded approximately 20 ft past its intended stopping point striking a gpu damaging the cowl and ingesting a chock that was sitting on top of the gpu. Pilot in command issued a PIREP of nil braking on the apron to jac ATCT. Airport authority immediately upgraded braking condition to poor. Airport authority has no functioning certified friction measuring equipment to ascertain braking action on any surfaces. Airport authority reported contaminates as 1 inch dry snow over packed snow. Conditions were more than 1 inch dry snow over ice.

Original NASA ASRS Text

Title: JAC Ramp Agent reported aircraft damage due to contact with a GPU during gate arrival when the flight crew could not stop due to snow and ice on the ramp. Conditions on the ramp were not NOTAM'ed.

Narrative: During an ongoing snow event; airport operations failed to maintain and or assess and properly NOTAM apron conditions. A Part 121 air carrier taxied onto the apron and skidded approximately 20 ft past its intended stopping point striking a GPU damaging the cowl and ingesting a chock that was sitting on top of the GPU. Pilot in command issued a PIREP of NIL braking on the apron to JAC ATCT. Airport authority immediately upgraded braking condition to POOR. Airport authority has no functioning certified friction measuring equipment to ascertain braking action on any surfaces. Airport authority reported contaminates as 1 inch dry snow over packed snow. Conditions were more than 1 inch dry snow over ice.

Data retrieved from NASA's ASRS site 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.

Attributes
ACN	1422591
Time
Date	201602
Local Time Of Day	1201-1800
Place
Locale Reference	JAC.Airport
State Reference	WY
Environment
Flight Conditions	IMC
Light	Daylight
Aircraft 1
Make Model Name	Large Transport Low Wing 2 Turbojet Eng
Operating Under FAR Part	Part 121
Flight Phase	Taxi
Flight Plan	IFR
Person 1
Function	Ramp
Events
Anomaly	Ground Event / Encounter Object

Jac ramp agent reported aircraft damage due to contact with a gpu during gate arrival when the flight crew could not stop due to snow and ice on the ramp. Conditions on the ramp were not NOTAM'ed.