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|
Attributes | |
ACN | 262186 |
Time | |
Date | 199401 |
Day | Tue |
Local Time Of Day | 0601 To 1200 |
Place | |
Locale Reference | airport : alb |
State Reference | NY |
Altitude | agl bound lower : 0 agl bound upper : 0 |
Environment | |
Flight Conditions | Marginal |
Light | Daylight |
Aircraft 1 | |
Controlling Facilities | tower : mkg |
Operator | common carrier : air taxi |
Make Model Name | Learjet 25 |
Operating Under FAR Part | other : unknown |
Flight Phase | landing other |
Flight Plan | IFR |
Person 1 | |
Affiliation | company : air taxi |
Function | flight crew : captain oversight : pic |
Qualification | pilot : commercial pilot : instrument pilot : atp |
Experience | flight time last 90 days : 32 flight time total : 2000 flight time type : 700 |
ASRS Report | 262186 |
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 : anomaly accepted |
Consequence | other |
Supplementary | |
Primary Problem | Aircraft |
Air Traffic Incident | Pilot Deviation other |
Narrative:
The aircraft departed nashville after taxiing on snow covered txwys. The runway (20L) had been plowed but still had some standing water and slush. The temperature in nashville was 38 degrees with light rain. On the takeoff roll, just before vr, the aircraft encountered a large puddle. After takeoff, the crew left the gear down in order to blow off any slush and the crew also turned off the anti-skid and pumped the brakes in order to break free any ice before bringing the landing gear up. However, upon landing, the wheels and/or brakes were apparently frozen. Thus, the aircraft skidded to a stop causing the left main tires to blow and flat spotting the right main tires. I believe that this situation could have been prevented if the ramps and txwys had been plowed or if a deicing/anti-icing agent had been used on the wheels. To my knowledge, there is not an anti-ice agent approved for use on learjet wheels. Additionally, if the aircraft had been equipped with heated wheel wells, this incident wouldn't have occurred. The lear 35's and 55's have heated wells (the aircraft flown was a lear 25D). Finally, the crew could have cycled the landing gear several times hoping to break loose and sling off any contaminate.
Original NASA ASRS Text
Title: THE L MAIN TIRES BLEW OUT DURING LNDG ROLLOUT ON A LEAR 25D MODEL ACFT DUE TO POSSIBLE ICE ON THE BRAKING SYS.
Narrative: THE ACFT DEPARTED NASHVILLE AFTER TAXIING ON SNOW COVERED TXWYS. THE RWY (20L) HAD BEEN PLOWED BUT STILL HAD SOME STANDING WATER AND SLUSH. THE TEMP IN NASHVILLE WAS 38 DEGS WITH LIGHT RAIN. ON THE TKOF ROLL, JUST BEFORE VR, THE ACFT ENCOUNTERED A LARGE PUDDLE. AFTER TKOF, THE CREW LEFT THE GEAR DOWN IN ORDER TO BLOW OFF ANY SLUSH AND THE CREW ALSO TURNED OFF THE ANTI-SKID AND PUMPED THE BRAKES IN ORDER TO BREAK FREE ANY ICE BEFORE BRINGING THE LNDG GEAR UP. HOWEVER, UPON LNDG, THE WHEELS AND/OR BRAKES WERE APPARENTLY FROZEN. THUS, THE ACFT SKIDDED TO A STOP CAUSING THE L MAIN TIRES TO BLOW AND FLAT SPOTTING THE R MAIN TIRES. I BELIEVE THAT THIS SIT COULD HAVE BEEN PREVENTED IF THE RAMPS AND TXWYS HAD BEEN PLOWED OR IF A DEICING/ANTI-ICING AGENT HAD BEEN USED ON THE WHEELS. TO MY KNOWLEDGE, THERE IS NOT AN ANTI-ICE AGENT APPROVED FOR USE ON LEARJET WHEELS. ADDITIONALLY, IF THE ACFT HAD BEEN EQUIPPED WITH HEATED WHEEL WELLS, THIS INCIDENT WOULDN'T HAVE OCCURRED. THE LEAR 35'S AND 55'S HAVE HEATED WELLS (THE ACFT FLOWN WAS A LEAR 25D). FINALLY, THE CREW COULD HAVE CYCLED THE LNDG GEAR SEVERAL TIMES HOPING TO BREAK LOOSE AND SLING OFF ANY CONTAMINATE.
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.