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DC9 departed rap. When gear retracted had loud noise and vibration in nosewheel area. Work had been done in wheel well area and maintenance control suggested recycle gear. Captain declared emergency and return to rap.
| Attributes | |
| ACN | 351850 |
| Time | |
| Date | 199610 |
| Day | Tue |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : rap |
| State Reference | SD |
| Altitude | msl bound lower : 5000 msl bound upper : 5000 |
| Environment | |
| Flight Conditions | Mixed |
| Light | Night |
| Aircraft 1 | |
| Controlling Facilities | tracon : rca tower : dca |
| Operator | common carrier : air carrier |
| Make Model Name | DC-9 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | climbout : takeoff other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : flight engineer pilot : cfi pilot : atp |
| Experience | flight time last 90 days : 390 flight time total : 16000 flight time type : 5000 |
| ASRS Report | 351850 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : commercial pilot : instrument |
| Events | |
| Anomaly | aircraft equipment problem : critical |
| Independent Detector | other flight crewa |
| Resolutory Action | flight crew : declared emergency none taken : unable other |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Aircraft |
Narrative:
Retracted gear, nosewheel made severe noise and continual vibration in airframe. Suspected bird strike in radome at first. Airspeed was ok. Acceleration above 180 KTS caused increased vibration. Re-extended slats/flaps, declared emergency, called maintenance control. Wheel well area had been worked in, so they suspected door latch open and suggested recycle gear down and up. We rejected that idea, if it goes down, it stays down (old common air sense rule). Extended gear, locked down, landed uneventfully and cleaned up trouser chili! P.south. CRM works! Both first officer and I were previous CRM instructors and were able to put those skills to work.
Original NASA ASRS Text
Title: DC9 DEPARTED RAP. WHEN GEAR RETRACTED HAD LOUD NOISE AND VIBRATION IN NOSEWHEEL AREA. WORK HAD BEEN DONE IN WHEEL WELL AREA AND MAINT CTL SUGGESTED RECYCLE GEAR. CAPT DECLARED EMER AND RETURN TO RAP.
Narrative: RETRACTED GEAR, NOSEWHEEL MADE SEVERE NOISE AND CONTINUAL VIBRATION IN AIRFRAME. SUSPECTED BIRD STRIKE IN RADOME AT FIRST. AIRSPD WAS OK. ACCELERATION ABOVE 180 KTS CAUSED INCREASED VIBRATION. RE-EXTENDED SLATS/FLAPS, DECLARED EMER, CALLED MAINT CTL. WHEEL WELL AREA HAD BEEN WORKED IN, SO THEY SUSPECTED DOOR LATCH OPEN AND SUGGESTED RECYCLE GEAR DOWN AND UP. WE REJECTED THAT IDEA, IF IT GOES DOWN, IT STAYS DOWN (OLD COMMON AIR SENSE RULE). EXTENDED GEAR, LOCKED DOWN, LANDED UNEVENTFULLY AND CLEANED UP TROUSER CHILI! P.S. CRM WORKS! BOTH FO AND I WERE PREVIOUS CRM INSTRUCTORS AND WERE ABLE TO PUT THOSE SKILLS TO WORK.
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.