Air carrier medium large transport #1 windshield cracked at cruise altitude.

Attributes
ACN	160333
Time
Date	199010
Day	Wed
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : gcn
State Reference	AZ
Altitude	msl bound lower : 25000 msl bound upper : 37000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zdv artcc : zdc
Operator	common carrier : air carrier
Make Model Name	Heavy Transport
Navigation In Use	Other Other
Flight Phase	cruise other
Route In Use	enroute : direct
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : instrument pilot : cfi pilot : atp pilot : commercial
Experience	flight time last 90 days : 180 flight time total : 18000 flight time type : 600
ASRS Report	160333
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp
Events
Anomaly	aircraft equipment problem : critical
Independent Detector	other flight crewa
Resolutory Action	flight crew : declared emergency flight crew : overcame equipment problem
Consequence	Other
Supplementary
Primary Problem	Aircraft

Narrative:

#1 windshield arced and cracked at 37000' (outer pane). Descended to 25000' and raised cabin to 9500' (4.9 psi). Proceeded to test. No problem.

Original NASA ASRS Text

Title: ACR MLG #1 WINDSHIELD CRACKED AT CRUISE ALT.

Narrative: #1 WINDSHIELD ARCED AND CRACKED AT 37000' (OUTER PANE). DSNDED TO 25000' AND RAISED CABIN TO 9500' (4.9 PSI). PROCEEDED TO TEST. NO PROB.

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.