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A CRJ200 on climb out at 15000 ft declared an emergency and diverted due to left reverser unlock light with 'emergency stow' light and airframe vibration.
| Attributes | |
| ACN | 651110 |
| Time | |
| Date | 200503 |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | airport : zzz.airport |
| State Reference | US |
| Altitude | msl single value : 15000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Night |
| Aircraft 1 | |
| Controlling Facilities | tracon : zzz.tracon tower : mia.tower |
| Operator | common carrier : air carrier |
| Make Model Name | Regional Jet 200 ER&LR |
| Operating Under FAR Part | Part 121 |
| Flight Phase | climbout : initial climbout : takeoff |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Experience | flight time total : 13500 |
| ASRS Report | 651110 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Events | |
| Anomaly | aircraft equipment problem : critical |
| Independent Detector | aircraft equipment other aircraft equipment : l rev unlock warning other flight crewa other flight crewb |
| Resolutory Action | controller : issued new clearance flight crew : overcame equipment problem flight crew : declared emergency flight crew : diverted to another airport |
| Consequence | other other |
| Supplementary | |
| Problem Areas | Aircraft |
| Primary Problem | Aircraft |
Narrative:
On climb out from ZZZ 'left reverser unlock' caution message illuminated with corresponding 'emergency stow' light on reverser panel and airframe vibration. Performed memory items and executed QRH procedures which stowed the reverser and gave us the use of the #1 engine again. Conferred with dispatch and maintenance and then declared an emergency followed by an uneventful overweight landing at ZZZ (rate of descent at touchdown no more than 200 FPM). Callback conversation with reporter revealed the following information: the reporter stated the 'left reverser unlock' light came on. The 'emergency stow' illuminated immediately after and an airframe vibration was felt. Punching the 'emergency stow' stowed the reverser and eliminated the vibration. Maintenance inspection on the ground revealed the reverser cracked open. No question the reverser was unlocked and partially open.
Original NASA ASRS Text
Title: A CRJ200 ON CLBOUT AT 15000 FT DECLARED AN EMER AND DIVERTED DUE TO L REVERSER UNLOCK LIGHT WITH 'EMER STOW' LIGHT AND AIRFRAME VIBRATION.
Narrative: ON CLBOUT FROM ZZZ 'L REVERSER UNLOCK' CAUTION MESSAGE ILLUMINATED WITH CORRESPONDING 'EMER STOW' LIGHT ON REVERSER PANEL AND AIRFRAME VIBRATION. PERFORMED MEMORY ITEMS AND EXECUTED QRH PROCS WHICH STOWED THE REVERSER AND GAVE US THE USE OF THE #1 ENG AGAIN. CONFERRED WITH DISPATCH AND MAINT AND THEN DECLARED AN EMER FOLLOWED BY AN UNEVENTFUL OVERWT LNDG AT ZZZ (RATE OF DSCNT AT TOUCHDOWN NO MORE THAN 200 FPM). CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: THE RPTR STATED THE 'L REVERSER UNLOCK' LIGHT CAME ON. THE 'EMER STOW' ILLUMINATED IMMEDIATELY AFTER AND AN AIRFRAME VIBRATION WAS FELT. PUNCHING THE 'EMER STOW' STOWED THE REVERSER AND ELIMINATED THE VIBRATION. MAINT INSPECTION ON THE GND REVEALED THE REVERSER CRACKED OPEN. NO QUESTION THE REVERSER WAS UNLOCKED AND PARTIALLY OPEN.
Data retrieved from NASA's ASRS site as of January 2009 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.