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WX factors - air carrier crew observes icing while flying in an area that is known for its warm climate.
| Attributes | |
| ACN | 302910 |
| Time | |
| Date | 199504 |
| Day | Fri |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | atc facility : tlh |
| State Reference | FL |
| Altitude | msl bound lower : 25000 msl bound upper : 25000 |
| Environment | |
| Flight Conditions | IMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zjx |
| Operator | common carrier : air carrier |
| Make Model Name | Brasilia EMB-120 All Series |
| Operating Under FAR Part | Part 121 |
| Flight Phase | cruise other |
| Route In Use | enroute airway : zjx |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 250 flight time total : 5000 flight time type : 2000 |
| ASRS Report | 302910 |
| 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 other anomaly other anomaly other |
| Independent Detector | other flight crewa |
| Resolutory Action | flight crew : overcame equipment problem other |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Weather |
| Air Traffic Incident | other |
Narrative:
Observation by both crewmembers of icing (trace) on outboard leading edge. Both crewmembers again noticed airspeed reduction and pitch attitude increase. Continued to monitor airspeed reduction from 180 KIAS to 140 KIAS and pitch attitude increase to 5 degrees up, no increase of trace ice on leading edge. Activated pneumatic leading ledge boots after which airspeed increased and pitch attitude decreased. Suspect tail-frame icing in greater amount than noticed by both pilots on outboard wing leading edge.
Original NASA ASRS Text
Title: WX FACTORS - ACR CREW OBSERVES ICING WHILE FLYING IN AN AREA THAT IS KNOWN FOR ITS WARM CLIMATE.
Narrative: OBSERVATION BY BOTH CREWMEMBERS OF ICING (TRACE) ON OUTBOARD LEADING EDGE. BOTH CREWMEMBERS AGAIN NOTICED AIRSPD REDUCTION AND PITCH ATTITUDE INCREASE. CONTINUED TO MONITOR AIRSPD REDUCTION FROM 180 KIAS TO 140 KIAS AND PITCH ATTITUDE INCREASE TO 5 DEGS UP, NO INCREASE OF TRACE ICE ON LEADING EDGE. ACTIVATED PNEUMATIC LEADING LEDGE BOOTS AFTER WHICH AIRSPD INCREASED AND PITCH ATTITUDE DECREASED. SUSPECT TAIL-FRAME ICING IN GREATER AMOUNT THAN NOTICED BY BOTH PLTS ON OUTBOARD WING LEADING EDGE.
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.