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Air carrier medium large transport dispatched into thunderstorm activity with inoperative aircraft WX radar.
| Attributes | |
| ACN | 149026 |
| Time | |
| Date | 199006 |
| Day | Sat |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : msp |
| State Reference | MN |
| Altitude | agl bound lower : 0 agl bound upper : 23000 |
| Environment | |
| Flight Conditions | IMC |
| Light | Daylight |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | Medium Large Transport |
| Flight Phase | climbout : takeoff cruise other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 40 flight time total : 6800 |
| ASRS Report | 149026 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Events | |
| Anomaly | aircraft equipment problem : less severe inflight encounter : weather non adherence : far |
| Independent Detector | other flight crewa |
| Resolutory Action | none taken : anomaly accepted |
| Consequence | other |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
On inbound leg to msp noticed WX radar not working properly but intermittent problem. We were late arriving msp. I had briefly wondered if we would be able to leave msp with radar problem. There was some shower activity, although I had not heard of any thunderstorm activity. I should explain that I am new to this company and aircraft, and in trying to get my duties done (i.e., preflight, weight & balance, clearance) I had not had a chance to review the WX except for current conditions at mdw. Left msp and radar would not work at all. By this time there was some convective activity, although it did not sound like other aircraft in our area were deviating. About mid-point encountered moderate to possibly severe turbulence with hail. Radome had to be replaced due to hail damage. In retrospect I should have questioned captain about leaving with marginal (at best) radar. Should have looked at WX personally. Finally, we should have questioned ATC about activity once in air. Being a new guy and not yet comfortable in the aircraft had much to do with my actions.
Original NASA ASRS Text
Title: ACR MLG DISPATCHED INTO TSTM ACTIVITY WITH INOPERATIVE ACFT WX RADAR.
Narrative: ON INBND LEG TO MSP NOTICED WX RADAR NOT WORKING PROPERLY BUT INTERMITTENT PROB. WE WERE LATE ARRIVING MSP. I HAD BRIEFLY WONDERED IF WE WOULD BE ABLE TO LEAVE MSP WITH RADAR PROB. THERE WAS SOME SHOWER ACTIVITY, ALTHOUGH I HAD NOT HEARD OF ANY TSTM ACTIVITY. I SHOULD EXPLAIN THAT I AM NEW TO THIS COMPANY AND ACFT, AND IN TRYING TO GET MY DUTIES DONE (I.E., PREFLT, WT & BAL, CLRNC) I HAD NOT HAD A CHANCE TO REVIEW THE WX EXCEPT FOR CURRENT CONDITIONS AT MDW. LEFT MSP AND RADAR WOULD NOT WORK AT ALL. BY THIS TIME THERE WAS SOME CONVECTIVE ACTIVITY, ALTHOUGH IT DID NOT SOUND LIKE OTHER ACFT IN OUR AREA WERE DEVIATING. ABOUT MID-POINT ENCOUNTERED MODERATE TO POSSIBLY SEVERE TURB WITH HAIL. RADOME HAD TO BE REPLACED DUE TO HAIL DAMAGE. IN RETROSPECT I SHOULD HAVE QUESTIONED CAPT ABOUT LEAVING WITH MARGINAL (AT BEST) RADAR. SHOULD HAVE LOOKED AT WX PERSONALLY. FINALLY, WE SHOULD HAVE QUESTIONED ATC ABOUT ACTIVITY ONCE IN AIR. BEING A NEW GUY AND NOT YET COMFORTABLE IN THE ACFT HAD MUCH TO DO WITH MY ACTIONS.
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.