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Flight crew experiences yaw and rumbling noise on takeoff. Narrow down possible sources and elect to declare an emergency. The landing is without incident, but a brake locks when taxiing.
| Attributes | |
| ACN | 113830 |
| Time | |
| Date | 198906 |
| Day | Thu |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : sgf |
| State Reference | MO |
| Altitude | agl bound lower : 0 agl bound upper : 0 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Operator | common carrier : air taxi |
| Make Model Name | Small Transport, Low Wing, 2 Turboprop Eng |
| Flight Phase | ground other : taxi landing other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air taxi |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp pilot : cfi |
| Experience | flight time last 90 days : 240 flight time total : 4600 flight time type : 1100 |
| ASRS Report | 113830 |
| Person 2 | |
| Affiliation | company : air taxi |
| Function | flight crew : first officer |
| Qualification | pilot : instrument pilot : commercial |
| Events | |
| Anomaly | aircraft equipment problem : critical other anomaly other |
| Independent Detector | other flight crewa |
| Resolutory Action | none taken : unable |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Aircraft |
| Air Traffic Incident | other |
Narrative:
During rotation at mci, I felt a yaw to the right and a rumbling sensation. All engine instruments and annunciator lights indicated normal. I elected to continue the climb and was vectored toward sgf. My first officer and I discussed the event at length. He thought the yawing moment was to the left but also felt the rumbling sensation. We searched the emergency checklist and the aircraft flight manual for information concerning blown tires, a situation we deduced (might) have happened. We also felt a locked brake assembly was a possibility. About 36 minutes after takeoff, I decided to declare an emergency and have the fire equipment standing by at sgf. We made an uneventful landing on runway 31 at sgf and taxied clear of the runway under our own power. On the taxiway the right brake locked with no input from the crew. We shut down both engines and were pulled to the ramp by a tug after a company mechanic released the brake. I feel we handled the situation properly and that my decision to have the equipment standing by was sound judgement.
Original NASA ASRS Text
Title: FLT CREW EXPERIENCES YAW AND RUMBLING NOISE ON TKOF. NARROW DOWN POSSIBLE SOURCES AND ELECT TO DECLARE AN EMERGENCY. THE LNDG IS WITHOUT INCIDENT, BUT A BRAKE LOCKS WHEN TAXIING.
Narrative: DURING ROTATION AT MCI, I FELT A YAW TO THE RIGHT AND A RUMBLING SENSATION. ALL ENGINE INSTRUMENTS AND ANNUNCIATOR LIGHTS INDICATED NORMAL. I ELECTED TO CONTINUE THE CLIMB AND WAS VECTORED TOWARD SGF. MY F/O AND I DISCUSSED THE EVENT AT LENGTH. HE THOUGHT THE YAWING MOMENT WAS TO THE LEFT BUT ALSO FELT THE RUMBLING SENSATION. WE SEARCHED THE EMER CHECKLIST AND THE ACFT FLT MANUAL FOR INFO CONCERNING BLOWN TIRES, A SITUATION WE DEDUCED (MIGHT) HAVE HAPPENED. WE ALSO FELT A LOCKED BRAKE ASSEMBLY WAS A POSSIBILITY. ABOUT 36 MINUTES AFTER TKOF, I DECIDED TO DECLARE AN EMER AND HAVE THE FIRE EQUIPMENT STANDING BY AT SGF. WE MADE AN UNEVENTFUL LNDG ON RWY 31 AT SGF AND TAXIED CLEAR OF THE RWY UNDER OUR OWN POWER. ON THE TXWY THE RIGHT BRAKE LOCKED WITH NO INPUT FROM THE CREW. WE SHUT DOWN BOTH ENGINES AND WERE PULLED TO THE RAMP BY A TUG AFTER A COMPANY MECHANIC RELEASED THE BRAKE. I FEEL WE HANDLED THE SITUATION PROPERLY AND THAT MY DECISION TO HAVE THE EQUIPMENT STANDING BY WAS SOUND JUDGEMENT.
Data retrieved from NASA's ASRS site as of August 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.