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At beginning of takeoff roll, first officer's rudder adjustment failed to hold rudder pedals and they collapsed making it impossible for first officer to make any rudder inputs.
| Attributes | |
| ACN | 257191 |
| Time | |
| Date | 199311 |
| Day | Fri |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : tpa |
| State Reference | FL |
| Altitude | agl bound lower : 0 agl bound upper : 0 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | Medium Large Transport, Low Wing, 2 Turbojet Eng |
| Navigation In Use | Other |
| 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 : atp pilot : cfi |
| Experience | flight time last 90 days : 136 flight time total : 13600 flight time type : 1477 |
| ASRS Report | 257191 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : instrument pilot : commercial |
| Events | |
| Anomaly | aircraft equipment problem : critical |
| Independent Detector | other flight crewa |
| Resolutory Action | flight crew : rejected takeoff |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Aircraft |
| Air Traffic Incident | other |
Narrative:
Aircraft was pulled into position and hold. First officer checked flight controls at yoke (elevator and aileron). Captain checked rudder. Checklists complete. Takeoff clearance received, throttles advanced. Aircraft rolled about 50 ft when first officer said rudder collapsed. Rudder pedal adjustment knob had appeared to be out and locked, but might not have been so. Aircraft was turned off of first taxiway from approach end of runway 18R tpa. No movement of airspeed indicators was noted. Aircraft ground speed never appeared to exceed 20 KTS. After we taxied clear of active runway, copilot's rudder pedals were readjusted by copilot and checked thoroughly for movement. The rudder pedals were then stepped on quite heavily (lifting first officer out of seat) to confirm locked in position. Normal takeoff ensued.
Original NASA ASRS Text
Title: AT BEGINNING OF TKOF ROLL, FO'S RUDDER ADJUSTMENT FAILED TO HOLD RUDDER PEDALS AND THEY COLLAPSED MAKING IT IMPOSSIBLE FOR FO TO MAKE ANY RUDDER INPUTS.
Narrative: ACFT WAS PULLED INTO POS AND HOLD. FO CHKED FLT CTLS AT YOKE (ELEVATOR AND AILERON). CAPT CHKED RUDDER. CHKLISTS COMPLETE. TKOF CLRNC RECEIVED, THROTTLES ADVANCED. ACFT ROLLED ABOUT 50 FT WHEN FO SAID RUDDER COLLAPSED. RUDDER PEDAL ADJUSTMENT KNOB HAD APPEARED TO BE OUT AND LOCKED, BUT MIGHT NOT HAVE BEEN SO. ACFT WAS TURNED OFF OF FIRST TXWY FROM APCH END OF RWY 18R TPA. NO MOVEMENT OF AIRSPD INDICATORS WAS NOTED. ACFT GND SPD NEVER APPEARED TO EXCEED 20 KTS. AFTER WE TAXIED CLR OF ACTIVE RWY, COPLT'S RUDDER PEDALS WERE READJUSTED BY COPLT AND CHKED THOROUGHLY FOR MOVEMENT. THE RUDDER PEDALS WERE THEN STEPPED ON QUITE HEAVILY (LIFTING FO OUT OF SEAT) TO CONFIRM LOCKED IN POS. NORMAL TKOF ENSUED.
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.