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EMB120 aircraft had duct leakage light and aural warning. Flight crew followed emergency procedure, shut down the engine and diverted to nearest suitable airport. Warning was false because of a faulty sensor.
| Attributes | |
| ACN | 385270 |
| Time | |
| Date | 199711 |
| Day | Mon |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | atc facility : rsw |
| State Reference | FL |
| Altitude | msl bound lower : 19000 msl bound upper : 19000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zma |
| Operator | common carrier : air carrier |
| Make Model Name | Brasilia EMB-120 All Series |
| Navigation In Use | Other |
| Flight Phase | cruise other other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp pilot : cfi |
| Experience | flight time last 90 days : 270 flight time total : 11000 flight time type : 7000 |
| ASRS Report | 385270 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : instrument pilot : cfi pilot : commercial |
| Experience | flight time last 90 days : 260 flight time total : 9200 flight time type : 7000 |
| ASRS Report | 385892 |
| Events | |
| Anomaly | aircraft equipment problem : critical |
| Independent Detector | aircraft equipment other aircraft equipment : unspecified other flight crewa |
| Resolutory Action | flight crew : declared emergency none taken : unable other |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Aircraft |
Narrative:
During cruise flight at FL190 a 'duct leakage' light illuminated on mode annunciator panel followed by an aural warning. Following the procedures outlined in the E120 'QRH' the #1 engine was shut down and the flight was diverted to the nearest suitable airport in point of time. As it turned out the cause of the warning light was a duct sensor that had separated from its weld point and was intermittently losing its ground contact.
Original NASA ASRS Text
Title: EMB120 ACFT HAD DUCT LEAKAGE LIGHT AND AURAL WARNING. FLC FOLLOWED EMER PROC, SHUT DOWN THE ENG AND DIVERTED TO NEAREST SUITABLE ARPT. WARNING WAS FALSE BECAUSE OF A FAULTY SENSOR.
Narrative: DURING CRUISE FLT AT FL190 A 'DUCT LEAKAGE' LIGHT ILLUMINATED ON MODE ANNUNCIATOR PANEL FOLLOWED BY AN AURAL WARNING. FOLLOWING THE PROCS OUTLINED IN THE E120 'QRH' THE #1 ENG WAS SHUT DOWN AND THE FLT WAS DIVERTED TO THE NEAREST SUITABLE ARPT IN POINT OF TIME. AS IT TURNED OUT THE CAUSE OF THE WARNING LIGHT WAS A DUCT SENSOR THAT HAD SEPARATED FROM ITS WELD POINT AND WAS INTERMITTENTLY LOSING ITS GND CONTACT.
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.