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37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
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A B767-300 flap ctrl circuit breaker failed causing a leading edge slat asymmetry EICAS; a flap position anomaly and a burning smell. An emergency was declared with a diversion.
| Attributes | |
| ACN | 742960 |
| Time | |
| Date | 200706 |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : zzz.airport |
| State Reference | US |
| Altitude | msl single value : 37000 |
| Environment | |
| Flight Conditions | VMC |
| Aircraft 1 | |
| Controlling Facilities | artcc : zzz.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | B767-300 and 300 ER |
| Operating Under FAR Part | Part 121 |
| Flight Phase | cruise : level |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| ASRS Report | 742960 |
| Events | |
| Anomaly | aircraft equipment problem : less severe other anomaly |
| Independent Detector | other flight crewa |
| Resolutory Action | flight crew : declared emergency flight crew : diverted to another airport flight crew : landed in emergency condition |
| Consequence | other |
| Supplementary | |
| Problem Areas | Aircraft |
| Primary Problem | Aircraft |
Narrative:
Heard a hissing sound in the overhead panel. At that time; got an EICAS message of leading edge slat asymmetry. Also; the flap position indicator was bouncing up and down from 0 degrees to 15 degrees. When it happened a few mins later; burning smell happened. Declared an emergency and landed with spoilers out for descent. Flap operating range; yellow band appeared. No overweight landing. Inspection found a broken circuit breaker.
Original NASA ASRS Text
Title: A B767-300 FLAP CTRL CB FAILED CAUSING A LEADING EDGE SLAT ASYMMETRY EICAS; A FLAP POSITION ANOMALY AND A BURNING SMELL. AN EMER WAS DECLARED WITH A DIVERSION.
Narrative: HEARD A HISSING SOUND IN THE OVERHEAD PANEL. AT THAT TIME; GOT AN EICAS MESSAGE OF LEADING EDGE SLAT ASYMMETRY. ALSO; THE FLAP POS INDICATOR WAS BOUNCING UP AND DOWN FROM 0 DEGS TO 15 DEGS. WHEN IT HAPPENED A FEW MINS LATER; BURNING SMELL HAPPENED. DECLARED AN EMER AND LANDED WITH SPOILERS OUT FOR DSCNT. FLAP OPERATING RANGE; YELLOW BAND APPEARED. NO OVERWT LNDG. INSPECTION FOUND A BROKEN CIRCUIT BREAKER.
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.