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In-flight encounter with WX and large hail which caused damage to first officer windscreen. Flight crew declared emergency, turned to evade more WX and landed uneventfully.
| Attributes | |
| ACN | 335088 |
| Time | |
| Date | 199604 |
| Day | Sun |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : stl |
| State Reference | MO |
| Altitude | msl bound lower : 8000 msl bound upper : 8000 |
| Environment | |
| Flight Conditions | IMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : stl |
| Operator | common carrier : air carrier |
| Make Model Name | Commercial Fixed Wing |
| Operating Under FAR Part | Part 135 |
| Flight Phase | cruise other |
| Route In Use | arrival other arrival star : star enroute airway : stl |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air taxi |
| Function | flight crew : first officer |
| Qualification | pilot : atp pilot : instrument |
| Experience | flight time last 90 days : 240 flight time total : 5700 flight time type : 700 |
| ASRS Report | 335088 |
| Person 2 | |
| Affiliation | company : air taxi |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : commercial pilot : instrument pilot : cfi pilot : atp |
| Experience | flight time type : 4500 |
| ASRS Report | 335325 |
| Events | |
| Anomaly | inflight encounter : weather other spatial deviation |
| Independent Detector | other flight crewa |
| Resolutory Action | flight crew : took evasive action flight crew : declared emergency |
| Consequence | other |
| Supplementary | |
| Primary Problem | Weather |
Narrative:
Departed evansville en route to st louis. Deviated around numerous embedded cells. At qball intersection we deviated around a small cell to the south and west. We were in IMC, light rain and light chop when the hail occurred. We turned immediately to the southwest and reduced airspeed to 140 KTS. The hail lasted about 15-20 seconds. We declared an emergency and proceeded to st louis airport. Supplemental information from acn 335325: radium showed cell on qball at approximately 34 NM ahead. We experienced golf ball size hail, cracking first officer's window immediately. We were in hail approximately 20 seconds. I turned 90 degrees left of course and turned out of hail before completing turn, declared emergency, slowed aircraft for window damage. Landed stl without further incident.
Original NASA ASRS Text
Title: INFLT ENCOUNTER WITH WX AND LARGE HAIL WHICH CAUSED DAMAGE TO FO WINDSCREEN. FLC DECLARED EMER, TURNED TO EVADE MORE WX AND LANDED UNEVENTFULLY.
Narrative: DEPARTED EVANSVILLE ENRTE TO ST LOUIS. DEVIATED AROUND NUMEROUS EMBEDDED CELLS. AT QBALL INTXN WE DEVIATED AROUND A SMALL CELL TO THE S AND W. WE WERE IN IMC, LIGHT RAIN AND LIGHT CHOP WHEN THE HAIL OCCURRED. WE TURNED IMMEDIATELY TO THE SW AND REDUCED AIRSPD TO 140 KTS. THE HAIL LASTED ABOUT 15-20 SECONDS. WE DECLARED AN EMER AND PROCEEDED TO ST LOUIS ARPT. SUPPLEMENTAL INFO FROM ACN 335325: RADIUM SHOWED CELL ON QBALL AT APPROX 34 NM AHEAD. WE EXPERIENCED GOLF BALL SIZE HAIL, CRACKING FO'S WINDOW IMMEDIATELY. WE WERE IN HAIL APPROX 20 SECONDS. I TURNED 90 DEGS L OF COURSE AND TURNED OUT OF HAIL BEFORE COMPLETING TURN, DECLARED EMER, SLOWED ACFT FOR WINDOW DAMAGE. LANDED STL WITHOUT FURTHER INCIDENT.
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.