Cpr CL60 challenger taxied down runway 27 for departure. In making turn around on exit area at end, left wing flap fairing struck electrical box unmarked. Minor damage and aircraft flew for 2 days before permanent repairs were made.

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Attributes
ACN	374541
Time
Date	199707
Day	Tue
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : 20v
State Reference	CO
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	general aviation : corporate
Make Model Name	Challenger CL600
Operating Under FAR Part	Part 91
Flight Phase	ground other : taxi
Flight Plan	VFR
Person 1
Affiliation	Other
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 100 flight time total : 11000 flight time type : 3300
ASRS Report	374541
Person 2
Affiliation	Other
Function	flight crew : first officer
Qualification	pilot : instrument pilot : commercial
Events
Anomaly	conflict : ground critical non adherence : published procedure
Independent Detector	other flight crewa
Resolutory Action	none taken : detected after the fact
Consequence	other
Supplementary
Primary Problem	Airport
Air Traffic Incident	other
Situations
Airport	other physical facility

Narrative:

Referring to diagram on reverse, we back-taxied down runway 27, entered first taxiway to left and made u-turn around for runway 27 departure. Although undetected at time of incident, the left outboard wing flap fairing scraped a 1/2 inch support post to airport equipment (48 inches AGL) located extremely close to 'U-turn' taxiway just prior to re-entering runway 27. The aircraft was on taxi centerline at all times. The airport had recently been newly improved through resurfacing and equipment installation, yet no signs of precaution were installed regarding close proximity of this equipment with taxiway. It is reporter's recommendation that proper signage and/or equipment be relocated so as to prevent future incidents. Through conversations with airport operator it was discovered that another aircraft hit this same equipment during same general period.

Original NASA ASRS Text

Title: CPR CL60 CHALLENGER TAXIED DOWN RWY 27 FOR DEP. IN MAKING TURN AROUND ON EXIT AREA AT END, L WING FLAP FAIRING STRUCK ELECTRICAL BOX UNMARKED. MINOR DAMAGE AND ACFT FLEW FOR 2 DAYS BEFORE PERMANENT REPAIRS WERE MADE.

Narrative: REFERRING TO DIAGRAM ON REVERSE, WE BACK-TAXIED DOWN RWY 27, ENTERED FIRST TXWY TO L AND MADE U-TURN AROUND FOR RWY 27 DEP. ALTHOUGH UNDETECTED AT TIME OF INCIDENT, THE L OUTBOARD WING FLAP FAIRING SCRAPED A 1/2 INCH SUPPORT POST TO ARPT EQUIP (48 INCHES AGL) LOCATED EXTREMELY CLOSE TO 'U-TURN' TXWY JUST PRIOR TO RE-ENTERING RWY 27. THE ACFT WAS ON TAXI CTRLINE AT ALL TIMES. THE ARPT HAD RECENTLY BEEN NEWLY IMPROVED THROUGH RESURFACING AND EQUIP INSTALLATION, YET NO SIGNS OF PRECAUTION WERE INSTALLED REGARDING CLOSE PROX OF THIS EQUIP WITH TXWY. IT IS RPTR'S RECOMMENDATION THAT PROPER SIGNAGE AND/OR EQUIP BE RELOCATED SO AS TO PREVENT FUTURE INCIDENTS. THROUGH CONVERSATIONS WITH ARPT OPERATOR IT WAS DISCOVERED THAT ANOTHER ACFT HIT THIS SAME EQUIP DURING SAME GENERAL PERIOD.

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.