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An MD82 on initial climb at 1000 ft declared an emergency due to an unusual vibration and smell of burning rubber from the nose gear area caused by the forward nose gear doors not completely closed.
| Attributes | |
| ACN | 451211 |
| Time | |
| Date | 199910 |
| Day | Thu |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | navaid : sea.vortac |
| State Reference | WA |
| Altitude | agl single value : 1000 |
| Environment | |
| Flight Conditions | IMC |
| Weather Elements | Rain |
| Light | Night |
| Aircraft 1 | |
| Controlling Facilities | tracon : s46.tracon |
| Operator | common carrier : air carrier |
| Make Model Name | MD-82 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | climbout : initial |
| Route In Use | departure sid : summa |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : multi engine pilot : instrument pilot : atp pilot : commercial pilot : flight engineer |
| Experience | flight time last 90 days : 91 flight time total : 14000 flight time type : 10000 |
| ASRS Report | 451211 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : multi engine pilot : commercial pilot : instrument |
| Experience | flight time last 90 days : 260 |
| ASRS Report | 451212 |
| Events | |
| Anomaly | aircraft equipment problem : critical other anomaly |
| Independent Detector | other flight crewa other flight crewb |
| Resolutory Action | flight crew : landed in emergency condition flight crew : declared emergency |
| Consequence | other |
| Supplementary | |
| Problem Areas | Maintenance Human Performance Aircraft |
| Primary Problem | Aircraft |
Narrative:
After gear retraction, we noticed significant vibration from the nosewheel area. It felt like the nosewheels themselves, but the vibration was not diminishing, which one would expect as the wheels spun down. We began to notice a burning rubber smell, which confused us even more. We decided to return to sea. We put the gear back down, with normal down and locked indications. The retracted gear indications had been normal also. We asked the flight attendants to prepare the cabin for an emergency landing, and discussed the situation with dispatch and maintenance. We landed with emergency equipment standing by, then had maintenance inspect the nosewheel. The cause was the forward nose gear doors, which did not close properly after gear retraction. The doors had been opened manually on the ground prior to departure. They were then closed prior to the first officer's walkaround inspection.
Original NASA ASRS Text
Title: AN MD82 ON INITIAL CLB AT 1000 FT DECLARED AN EMER DUE TO AN UNUSUAL VIBRATION AND SMELL OF BURNING RUBBER FROM THE NOSE GEAR AREA CAUSED BY THE FORWARD NOSE GEAR DOORS NOT COMPLETELY CLOSED.
Narrative: AFTER GEAR RETRACTION, WE NOTICED SIGNIFICANT VIBRATION FROM THE NOSEWHEEL AREA. IT FELT LIKE THE NOSEWHEELS THEMSELVES, BUT THE VIBRATION WAS NOT DIMINISHING, WHICH ONE WOULD EXPECT AS THE WHEELS SPUN DOWN. WE BEGAN TO NOTICE A BURNING RUBBER SMELL, WHICH CONFUSED US EVEN MORE. WE DECIDED TO RETURN TO SEA. WE PUT THE GEAR BACK DOWN, WITH NORMAL DOWN AND LOCKED INDICATIONS. THE RETRACTED GEAR INDICATIONS HAD BEEN NORMAL ALSO. WE ASKED THE FLT ATTENDANTS TO PREPARE THE CABIN FOR AN EMER LNDG, AND DISCUSSED THE SIT WITH DISPATCH AND MAINT. WE LANDED WITH EMER EQUIP STANDING BY, THEN HAD MAINT INSPECT THE NOSEWHEEL. THE CAUSE WAS THE FORWARD NOSE GEAR DOORS, WHICH DID NOT CLOSE PROPERLY AFTER GEAR RETRACTION. THE DOORS HAD BEEN OPENED MANUALLY ON THE GND PRIOR TO DEP. THEY WERE THEN CLOSED PRIOR TO THE FO'S WALKAROUND INSPECTION.
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.