A CL601 in cruise at FL390 had the captain's windshield outer pane crack. Accomplished checklist and descended to FL250.

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Attributes
ACN	681029
Time
Date	200512
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : hsv.airport
State Reference	AL
Altitude	msl single value : 39000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : ztl.artcc
Operator	general aviation : corporate
Make Model Name	Regional Jet CL65 Undifferentiated or Other Model
Operating Under FAR Part	Part 91
Flight Phase	cruise : level
Flight Plan	IFR
Person 1
Affiliation	company : corporate
Function	flight crew : first officer
Qualification	pilot : multi engine pilot : cfi pilot : atp
Experience	flight time last 90 days : 60 flight time total : 7800 flight time type : 600
ASRS Report	681029
Person 2
Affiliation	company : corporate
Function	flight crew : captain oversight : pic
Events
Anomaly	aircraft equipment problem : critical other anomaly other
Independent Detector	other flight crewa other flight crewb
Resolutory Action	controller : issued new clearance flight crew : took precautionary avoidance action flight crew : overcame equipment problem
Consequence	other other
Supplementary
Problem Areas	Chart Or Publication Aircraft
Primary Problem	Aircraft

Narrative:

Cruising at FL390 near hsv; I was PNF in copilot's seat. Captain's forward windshield outer face ply cracked. We ran appropriate checklist; advised center of event; requested and received descent to FL250. No further action of services were required. At destination; accomplished field repair of outer face ply in accordance with maintenance manual; MEL'ed windshield anti-ice; flew back to pia.

Original NASA ASRS Text

Title: A CL601 IN CRUISE AT FL390 HAD THE CAPT'S WINDSHIELD OUTER PANE CRACK. ACCOMPLISHED CHKLIST AND DSNDED TO FL250.

Narrative: CRUISING AT FL390 NEAR HSV; I WAS PNF IN COPLT'S SEAT. CAPT'S FORWARD WINDSHIELD OUTER FACE PLY CRACKED. WE RAN APPROPRIATE CHKLIST; ADVISED CTR OF EVENT; REQUESTED AND RECEIVED DSCNT TO FL250. NO FURTHER ACTION OF SVCS WERE REQUIRED. AT DEST; ACCOMPLISHED FIELD REPAIR OF OUTER FACE PLY IN ACCORDANCE WITH MAINT MANUAL; MEL'ED WINDSHIELD ANTI-ICE; FLEW BACK TO PIA.

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.