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C421 brakes locked up after being cleared for takeoff resulting in the nosewheel tire deflating when attempt was made to taxi off the runway.
| Attributes | |
| ACN | 515692 |
| Time | |
| Date | 200106 |
| Day | Sat |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : apf.airport |
| State Reference | FL |
| Altitude | agl single value : 0 |
| Environment | |
| Light | Daylight |
| Aircraft 1 | |
| Operator | general aviation : corporate |
| Make Model Name | Cessna Twin Piston Undifferentiated or Other Model |
| Operating Under FAR Part | Part 91 |
| Flight Phase | ground : taxi |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | tower : lou.tower |
| Person 1 | |
| Affiliation | company : corporate |
| Function | flight crew : single pilot |
| Qualification | pilot : private pilot : multi engine pilot : instrument |
| Experience | flight time total : 8600 |
| ASRS Report | 515692 |
| Person 2 | |
| Affiliation | other |
| Function | controller : local |
| Events | |
| Anomaly | aircraft equipment problem : critical other anomaly other |
| Independent Detector | other flight crewa |
| Resolutory Action | none taken : unable other |
| Consequence | other other |
| Supplementary | |
| Problem Areas | Aircraft |
| Primary Problem | Aircraft |
Narrative:
After I was given clearance for taxi into position and cleared for takeoff, I touched my brakes before applying power and after applying power my aircraft would not move as my brakes had apparently locked (froze) and I notified tower at apf of my situation. I then tried to move off the runway onto the taxiway by applying differential power and my nosewheel went flat. I shut down the aircraft and notified the tower of my situation and was towed back off the field with a dolly under and nose and the brakes release by a mechanic. The aircraft was completing its annual inspection at the time.
Original NASA ASRS Text
Title: C421 BRAKES LOCKED UP AFTER BEING CLRED FOR TKOF RESULTING IN THE NOSEWHEEL TIRE DEFLATING WHEN ATTEMPT WAS MADE TO TAXI OFF THE RWY.
Narrative: AFTER I WAS GIVEN CLRNC FOR TAXI INTO POS AND CLRED FOR TKOF, I TOUCHED MY BRAKES BEFORE APPLYING PWR AND AFTER APPLYING PWR MY ACFT WOULD NOT MOVE AS MY BRAKES HAD APPARENTLY LOCKED (FROZE) AND I NOTIFIED TWR AT APF OF MY SIT. I THEN TRIED TO MOVE OFF THE RWY ONTO THE TXWY BY APPLYING DIFFERENTIAL PWR AND MY NOSEWHEEL WENT FLAT. I SHUT DOWN THE ACFT AND NOTIFIED THE TWR OF MY SIT AND WAS TOWED BACK OFF THE FIELD WITH A DOLLY UNDER AND NOSE AND THE BRAKES RELEASE BY A MECH. THE ACFT WAS COMPLETING ITS ANNUAL INSPECTION AT THE TIME.
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.