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B787 flight crew encountered a thunderstorm at FL210 during departure. Hail caused the L2 window to crack and apparently caused the radar to fail. The crew elected to return to the departure airport for an overweight landing.
| Attributes | |
| ACN | 1283240 |
| Time | |
| Date | 201507 |
| Local Time Of Day | 1201-1800 |
| Place | |
| Locale Reference | ZZZZ.Airport |
| State Reference | FO |
| Environment | |
| Flight Conditions | IMC |
| Light | Daylight |
| Aircraft 1 | |
| Make Model Name | B787-800 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Climb |
| Flight Plan | IFR |
| Component | |
| Aircraft Component | Cockpit Window |
| Person 1 | |
| Function | Pilot Flying Captain Check Pilot |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Person 2 | |
| Function | Relief Pilot First Officer Pilot Not Flying |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Events | |
| Anomaly | Aircraft Equipment Problem Less Severe Inflight Event / Encounter Weather / Turbulence |
Narrative:
Weather event. Cracked L2 window.
Original NASA ASRS Text
Title: B787 flight crew encountered a thunderstorm at FL210 during departure. Hail caused the L2 window to crack and apparently caused the Radar to fail. The crew elected to return to the departure airport for an overweight landing.
Narrative: Weather Event. Cracked L2 window.
Data retrieved from NASA's ASRS site 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.