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A B737 captain's eyebrow window; L4; cracked but remained intact during descent.
| Attributes | |
| ACN | 844153 |
| Time | |
| Date | 200907 |
| Local Time Of Day | 1201-1800 |
| Place | |
| Locale Reference | ZZZ.ARTCC |
| State Reference | US |
| Aircraft 1 | |
| Make Model Name | B737-300 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Descent |
| Component | |
| Aircraft Component | Cockpit Canopy Window |
| Person 1 | |
| Function | Captain Pilot Not Flying |
| Experience | Flight Crew Last 90 Days 150 Flight Crew Total 20000 Flight Crew Type 10500 |
| Events | |
| Anomaly | Aircraft Equipment Problem Critical |
Narrative:
Descending at about 14000 ft descending to 11000 ft heard a loud 'pop.' I looked up and saw that my eyebrow window L4 had cracked. It was intact but had a shattered look. It appeared to be the outer or middle pane. I was the pilot not flying; first officer was pilot flying. I advised ATC that we had a shattered window; but pressurization was holding and we wanted lower altitude. We were cleared to 8000 ft. I had also pulled out the manual and started running the irregular checklist. Per the checklist we depressurized the aircraft and made the decision to land at our destination. The window held throughout the approach and landing and we landed uneventfully. The flight attendants were briefed to expect an unpressurized approach and landing as were the passengers.
Original NASA ASRS Text
Title: A B737 Captain's eyebrow window; L4; cracked but remained intact during descent.
Narrative: Descending at about 14000 FT descending to 11000 FT heard a loud 'pop.' I looked up and saw that my eyebrow window L4 had cracked. It was intact but had a shattered look. It appeared to be the outer or middle pane. I was the pilot not flying; First Officer was pilot flying. I advised ATC that we had a shattered window; but pressurization was holding and we wanted lower altitude. We were cleared to 8000 FT. I had also pulled out the manual and started running the irregular checklist. Per the checklist we depressurized the aircraft and made the decision to land at our destination. The window held throughout the approach and landing and we landed uneventfully. The flight attendants were briefed to expect an unpressurized approach and landing as were the passengers.
Data retrieved from NASA's ASRS site as of April 2012 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.