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A canadair CL65 on descent at 12000 ft declared an emergency due to right reverser unlock caution message. Caused by false warning.
| Attributes | |
| ACN | 623019 |
| Time | |
| Date | 200407 |
| Day | Sun |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | intersection : gso |
| State Reference | NC |
| Altitude | msl single value : 12000 |
| Environment | |
| Flight Conditions | Mixed |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : gso.tracon |
| Operator | common carrier : air carrier |
| Make Model Name | Regional Jet CL65, Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | descent : approach descent : intermediate altitude |
| 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 : 240 flight time total : 4000 flight time type : 3000 |
| ASRS Report | 623019 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : commercial pilot : instrument pilot : multi engine |
| Experience | flight time last 90 days : 270 flight time total : 3000 flight time type : 1800 |
| ASRS Report | 623497 |
| Events | |
| Anomaly | aircraft equipment problem : critical |
| Independent Detector | aircraft equipment other aircraft equipment : right reverser unlock message other flight crewa other flight crewb |
| Resolutory Action | flight crew : declared emergency flight crew : landed in emergency condition |
| Consequence | other other Other |
| Factors | |
| Maintenance | contributing factor : schedule pressure performance deficiency : fault isolation performance deficiency : repair |
| Supplementary | |
| Problem Areas | Aircraft Flight Crew Human Performance Chart Or Publication |
| Primary Problem | Aircraft |
Narrative:
On arrival into gso, a right thrust reverser unlocked caution message displayed. We were descending through 12000 ft. Thrust levers were just above idle. First officer completed memory items and QRH message did not go away. QRH directed us to land at nearest suitable airport. We declared an emergency and landed at gso uneventfully. Maintenance, dispatch, flight attendant and passenger were all advised. Callback conversation with reporter revealed the following information: the reporter stated that, when on the ground, maintenance checked the reverser for being locked in the forward thrust position and deferred the right reverser per the MEL and accomplished the special procedures.
Original NASA ASRS Text
Title: A CANADAIR CL65 ON DSCNT AT 12000 FT DECLARED AN EMER DUE TO R REVERSER UNLOCK CAUTION MESSAGE. CAUSED BY FALSE WARNING.
Narrative: ON ARR INTO GSO, A R THRUST REVERSER UNLOCKED CAUTION MESSAGE DISPLAYED. WE WERE DSNDING THROUGH 12000 FT. THRUST LEVERS WERE JUST ABOVE IDLE. FO COMPLETED MEMORY ITEMS AND QRH MESSAGE DID NOT GO AWAY. QRH DIRECTED US TO LAND AT NEAREST SUITABLE ARPT. WE DECLARED AN EMER AND LANDED AT GSO UNEVENTFULLY. MAINT, DISPATCH, FLT ATTENDANT AND PAX WERE ALL ADVISED. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: THE RPTR STATED THAT, WHEN ON THE GND, MAINT CHKED THE REVERSER FOR BEING LOCKED IN THE FORWARD THRUST POS AND DEFERRED THE R REVERSER PER THE MEL AND ACCOMPLISHED THE SPECIAL PROCS.
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.