|37000 Feet||Browse and search NASA's
Aviation Safety Reporting System
|Local Time Of Day||0601 To 1200|
|Locale Reference||airport : dfw|
|Altitude||agl bound lower : 0|
agl bound upper : 0
|Operator||common carrier : air carrier|
|Make Model Name||MD-80 Super 80|
|Flight Phase||ground other : taxi|
|Affiliation||company : air carrier|
|Function||flight crew : first officer|
|Qualification||pilot : commercial|
|Affiliation||company : air carrier|
|Function||flight crew : captain|
oversight : pic
|Anomaly||aircraft equipment problem : less severe|
conflict : ground critical
non adherence other
other anomaly other
|Independent Detector||other flight crewa|
|Resolutory Action||flight crew : overcame equipment problem|
|Air Traffic Incident||Pilot Deviation|
After completion of a straight back power back from gate at dfw, the captain attempted to make a right turnout for taxi but was unable to move the tiller. The captain immediately stopped the aircraft which resulted in a somewhat abrupt stop. He signaled the ground crew to return to the aircraft. Upon reestablishing communication with the ground crew, the crew chief discovered a steering bypass pin installed without a red flag. Apparently the maintenance crew had towed the airplane in that morning and used a pin without the flag installed. The tow crew neglected to remove the pin after completing the tow. I, the first officer, missed the pin on the origination preflight. It is not unusual to have the pin installed on the preflight as the aircraft could be pushed back for the departure. Because of this, I may have been a little less than diligent in observing the bypass pin. I will attempt to be more aware of the presence of the pin in the future and in the event of a power back, ensure the captain coordinates for the pin to be removed. If the pin had the red streamer attached to it, I believe the crew chief could have seen it prior to the power back. It is fortunate that it was not a turning power back or serious injury or damage may have resulted. Perhaps a check of all pins should be accomplished to ensure that the streamers are secured properly. Supplemental information from acn 427677: due to the proximity of ground equipment moving in front of the aircraft and my inability to control direction of the aircraft, I stopped more abruptly than normal. The crew chief found a steering bypass pin installed without a flag. He stated that he had missed the pin because of the lack of a flag. Later I found out that when I stopped the #2 flight attendant was knocked down and hurt his back.
Original NASA ASRS Text
Title: AN S80 PIC ON BEGINNING OF TAXI DISCOVERS THAT HE CANNOT TURN THE NOSEWHEEL. A RATHER SUDDEN STOP OCCURS, HURTING A CABIN ATTENDANT. THE NOSE GEAR STEERING BYPASS PIN WAS STILL INSTALLED, WITHOUT A FLAG.
Narrative: AFTER COMPLETION OF A STRAIGHT BACK PWR BACK FROM GATE AT DFW, THE CAPT ATTEMPTED TO MAKE A R TURNOUT FOR TAXI BUT WAS UNABLE TO MOVE THE TILLER. THE CAPT IMMEDIATELY STOPPED THE ACFT WHICH RESULTED IN A SOMEWHAT ABRUPT STOP. HE SIGNALED THE GND CREW TO RETURN TO THE ACFT. UPON REESTABLISHING COM WITH THE GND CREW, THE CREW CHIEF DISCOVERED A STEERING BYPASS PIN INSTALLED WITHOUT A RED FLAG. APPARENTLY THE MAINT CREW HAD TOWED THE AIRPLANE IN THAT MORNING AND USED A PIN WITHOUT THE FLAG INSTALLED. THE TOW CREW NEGLECTED TO REMOVE THE PIN AFTER COMPLETING THE TOW. I, THE FO, MISSED THE PIN ON THE ORIGINATION PREFLT. IT IS NOT UNUSUAL TO HAVE THE PIN INSTALLED ON THE PREFLT AS THE ACFT COULD BE PUSHED BACK FOR THE DEP. BECAUSE OF THIS, I MAY HAVE BEEN A LITTLE LESS THAN DILIGENT IN OBSERVING THE BYPASS PIN. I WILL ATTEMPT TO BE MORE AWARE OF THE PRESENCE OF THE PIN IN THE FUTURE AND IN THE EVENT OF A PWR BACK, ENSURE THE CAPT COORDINATES FOR THE PIN TO BE REMOVED. IF THE PIN HAD THE RED STREAMER ATTACHED TO IT, I BELIEVE THE CREW CHIEF COULD HAVE SEEN IT PRIOR TO THE PWR BACK. IT IS FORTUNATE THAT IT WAS NOT A TURNING PWR BACK OR SERIOUS INJURY OR DAMAGE MAY HAVE RESULTED. PERHAPS A CHK OF ALL PINS SHOULD BE ACCOMPLISHED TO ENSURE THAT THE STREAMERS ARE SECURED PROPERLY. SUPPLEMENTAL INFO FROM ACN 427677: DUE TO THE PROX OF GND EQUIP MOVING IN FRONT OF THE ACFT AND MY INABILITY TO CTL DIRECTION OF THE ACFT, I STOPPED MORE ABRUPTLY THAN NORMAL. THE CREW CHIEF FOUND A STEERING BYPASS PIN INSTALLED WITHOUT A FLAG. HE STATED THAT HE HAD MISSED THE PIN BECAUSE OF THE LACK OF A FLAG. LATER I FOUND OUT THAT WHEN I STOPPED THE #2 FLT ATTENDANT WAS KNOCKED DOWN AND HURT HIS BACK.
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.