 |
37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
Aircraft equipment problem. Emergency declared. Air carrier has a cracked windshield at high altitude.
| Attributes | |
| ACN | 312321 |
| Time | |
| Date | 199508 |
| Day | Wed |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | atc facility : pxv |
| State Reference | IN |
| Altitude | msl bound lower : 35000 msl bound upper : 35000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zid |
| Operator | common carrier : air carrier |
| Make Model Name | DC-9 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | cruise other other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : commercial pilot : instrument pilot : flight engineer |
| Experience | flight time last 90 days : 150 flight time total : 9000 flight time type : 130 |
| ASRS Report | 312321 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp pilot : flight engineer |
| Experience | flight time last 90 days : 210 flight time total : 16000 flight time type : 800 |
| ASRS Report | 313224 |
| Events | |
| Anomaly | aircraft equipment problem : critical other anomaly other |
| Independent Detector | aircraft equipment other aircraft equipment : unspecified other flight crewa |
| Resolutory Action | controller : issued new clearance flight crew : declared emergency flight crew : overcame equipment problem other |
| Consequence | other |
| Supplementary | |
| Primary Problem | Aircraft |
Narrative:
During cruise at FL350, a loud popping noise was heard in the cockpit. The captain's forward windshield had cracked. The anti-ice windshield heating elements started to arc, causing spots of bonding glue to start melting. I turned off the window anti-ice and the arcing stopped. The captain declared an emergency and requested an immediate descent. I disconnected the autoplt and turned off the airway anticipating an immediate descent. I had just begun our descent when ARTCC told us to maintain altitude. The captain again told ARTCC that we had an emergency and needed an immediate descent. We were then given a heading and received clearance for our descent. Approximately 80 percent of captain's windshield had cracks. Emergency procedures were accomplished, and we landed at the nearest suitable airfield without further incident (lou, ky).
Original NASA ASRS Text
Title: ACFT EQUIP PROB. EMER DECLARED. ACR HAS A CRACKED WINDSHIELD AT HIGH ALT.
Narrative: DURING CRUISE AT FL350, A LOUD POPPING NOISE WAS HEARD IN THE COCKPIT. THE CAPT'S FORWARD WINDSHIELD HAD CRACKED. THE ANTI-ICE WINDSHIELD HEATING ELEMENTS STARTED TO ARC, CAUSING SPOTS OF BONDING GLUE TO START MELTING. I TURNED OFF THE WINDOW ANTI-ICE AND THE ARCING STOPPED. THE CAPT DECLARED AN EMER AND REQUESTED AN IMMEDIATE DSCNT. I DISCONNECTED THE AUTOPLT AND TURNED OFF THE AIRWAY ANTICIPATING AN IMMEDIATE DSCNT. I HAD JUST BEGUN OUR DSCNT WHEN ARTCC TOLD US TO MAINTAIN ALT. THE CAPT AGAIN TOLD ARTCC THAT WE HAD AN EMER AND NEEDED AN IMMEDIATE DSCNT. WE WERE THEN GIVEN A HDG AND RECEIVED CLRNC FOR OUR DSCNT. APPROX 80 PERCENT OF CAPT'S WINDSHIELD HAD CRACKS. EMER PROCS WERE ACCOMPLISHED, AND WE LANDED AT THE NEAREST SUITABLE AIRFIELD WITHOUT FURTHER INCIDENT (LOU, KY).
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.