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|
Attributes | |
ACN | 339504 |
Time | |
Date | 199606 |
Day | Tue |
Local Time Of Day | 1201 To 1800 |
Place | |
Locale Reference | airport : ilm |
State Reference | NC |
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 | Fokker 100 |
Operating Under FAR Part | Part 121 |
Navigation In Use | Other Other |
Flight Phase | landing other |
Flight Plan | IFR |
Person 1 | |
Affiliation | company : air carrier |
Function | flight crew : captain oversight : pic |
Qualification | pilot : atp |
Experience | flight time last 90 days : 240 flight time total : 17000 flight time type : 550 |
ASRS Report | 339504 |
Person 2 | |
Affiliation | company : air carrier |
Function | flight crew : first officer |
Qualification | pilot : commercial pilot : atp pilot : instrument pilot : flight engineer |
Experience | flight time last 90 days : 220 flight time total : 10000 flight time type : 220 |
ASRS Report | 339518 |
Events | |
Anomaly | aircraft equipment problem : critical other anomaly other |
Independent Detector | other flight crewa |
Resolutory Action | flight crew : overcame equipment problem |
Consequence | other |
Supplementary | |
Primary Problem | Aircraft |
Air Traffic Incident | other |
Narrative:
After touchdown on runway 17 during our landing roll I had no brakes, the thrust reversers would not deploy, and the lift dumpers did not deploy. I said to the first officer we had no brakes. He confirmed that, then he selected the anti-skid switch to off. The brakes were then effective, but all 4 main tires were blown on rollout. Aircraft stopped safely on runway. No injuries, the flight attendants said it seemed like a normal landing. Callback conversation with reporter revealed the following information: the reporter flies the fokker F100. Both his departure and arrival runways were contaminated with water, but the aircraft did not spend much time in freezing air, which might have caused switch failure. Mechanics and an FAA person found that both ground sensing switches were bad. They have been sent off for analysis and the reason for failure has not yet been found. The reporter understands that this is the third instance of this failure with fokker. His air carrier now trains its crews to be aware of the possibility of this failure and the reporter's solution. To compound the problem, there was no EICAS message warning the crew that the switches had failed. There has been no FAA action.
Original NASA ASRS Text
Title: AN ACR F100 BLEW ALL 4 MAIN TIRES WHEN ITS GND SENSING SWITCHES FAILED. THERE WAS NO EICAS WARNING. ACFT EQUIP PROBS GND SENSING SWITCHES FAILED, NO EICAS MESSAGE. ACFT DAMAGE 4 BLOWN TIRES ONLY.
Narrative: AFTER TOUCHDOWN ON RWY 17 DURING OUR LNDG ROLL I HAD NO BRAKES, THE THRUST REVERSERS WOULD NOT DEPLOY, AND THE LIFT DUMPERS DID NOT DEPLOY. I SAID TO THE FO WE HAD NO BRAKES. HE CONFIRMED THAT, THEN HE SELECTED THE ANTI-SKID SWITCH TO OFF. THE BRAKES WERE THEN EFFECTIVE, BUT ALL 4 MAIN TIRES WERE BLOWN ON ROLLOUT. ACFT STOPPED SAFELY ON RWY. NO INJURIES, THE FLT ATTENDANTS SAID IT SEEMED LIKE A NORMAL LNDG. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: THE RPTR FLIES THE FOKKER F100. BOTH HIS DEP AND ARR RWYS WERE CONTAMINATED WITH WATER, BUT THE ACFT DID NOT SPEND MUCH TIME IN FREEZING AIR, WHICH MIGHT HAVE CAUSED SWITCH FAILURE. MECHS AND AN FAA PERSON FOUND THAT BOTH GND SENSING SWITCHES WERE BAD. THEY HAVE BEEN SENT OFF FOR ANALYSIS AND THE REASON FOR FAILURE HAS NOT YET BEEN FOUND. THE RPTR UNDERSTANDS THAT THIS IS THE THIRD INSTANCE OF THIS FAILURE WITH FOKKER. HIS ACR NOW TRAINS ITS CREWS TO BE AWARE OF THE POSSIBILITY OF THIS FAILURE AND THE RPTR'S SOLUTION. TO COMPOUND THE PROB, THERE WAS NO EICAS MESSAGE WARNING THE CREW THAT THE SWITCHES HAD FAILED. THERE HAS BEEN NO FAA ACTION.
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.