Takeoff aborted when nosewheel develops excessive vibration.

Attributes
ACN	284884
Time
Date	199410
Day	Fri
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : mco
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	MD-80 Super 80
Operating Under FAR Part	Part 121
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 : atp
ASRS Report	284884
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp
Events
Anomaly	aircraft equipment problem : critical non adherence : published procedure other anomaly other
Independent Detector	other flight crewa
Resolutory Action	aircraft : equipment problem dissipated flight crew : overcame equipment problem other
Consequence	Other
Supplementary
Primary Problem	Airport
Air Traffic Incident	other
Situations
ATC Facility	other physical facility

Narrative:

During takeoff from mco nosewheel vibration was excessive takeoff was aborted at very low speed. Northwest problem was analyzed by crew on taxi-in and northwest was tested with a high speed taxi. 2ND takeoff normal. Callback conversation with reporter revealed the following information: reporter was asked how the flight crew had determined that there was just a temperature problem with the nosewheel and that it would be ok for another takeoff. He stated that the crew remembered seeing a 'rut,' similar to a pothole, in the runway just prior to the start of the vibration. They felt that this pothole had instigated the temperature imbal situation and therefore used the high speed taxi test to prove their theory as being correct. Upon arrival at their next stop, bna, the ground crew said the upper portion of the nose strut needed greasing. Not known if that was associated with the vibration at mco. Tower was advised of the 'rut' and reporter said it was repaired at a later date.

Original NASA ASRS Text

Title: TKOF ABORTED WHEN NOSEWHEEL DEVELOPS EXCESSIVE VIBRATION.

Narrative: DURING TKOF FROM MCO NOSEWHEEL VIBRATION WAS EXCESSIVE TKOF WAS ABORTED AT VERY LOW SPD. NW PROB WAS ANALYZED BY CREW ON TAXI-IN AND NW WAS TESTED WITH A HIGH SPD TAXI. 2ND TKOF NORMAL. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: RPTR WAS ASKED HOW THE FLC HAD DETERMINED THAT THERE WAS JUST A TEMP PROB WITH THE NOSEWHEEL AND THAT IT WOULD BE OK FOR ANOTHER TKOF. HE STATED THAT THE CREW REMEMBERED SEEING A 'RUT,' SIMILAR TO A POTHOLE, IN THE RWY JUST PRIOR TO THE START OF THE VIBRATION. THEY FELT THAT THIS POTHOLE HAD INSTIGATED THE TEMP IMBAL SIT AND THEREFORE USED THE HIGH SPD TAXI TEST TO PROVE THEIR THEORY AS BEING CORRECT. UPON ARR AT THEIR NEXT STOP, BNA, THE GND CREW SAID THE UPPER PORTION OF THE NOSE STRUT NEEDED GREASING. NOT KNOWN IF THAT WAS ASSOCIATED WITH THE VIBRATION AT MCO. TWR WAS ADVISED OF THE 'RUT' AND RPTR SAID IT WAS REPAIRED AT A LATER DATE.

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.