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During taxi the brakes and nose steering failed for a fazo. Aircraft struck a parked C172. Cause of brake and nose steering failure unknown.
| Attributes | |
| ACN | 626378 |
| Time | |
| Date | 200407 |
| Day | Thu |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : zzz.airport |
| State Reference | US |
| Altitude | agl single value : 0 |
| Environment | |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tower : lgb.tower |
| Operator | general aviation : corporate |
| Make Model Name | Falcon 20FJF/20C/20D/20E/20F |
| Operating Under FAR Part | Part 91 |
| Flight Phase | ground : taxi ground : maintenance |
| Flight Plan | IFR |
| Aircraft 2 | |
| Make Model Name | Skyhawk 172/Cutlass 172 |
| Operating Under FAR Part | Part 91 |
| Flight Phase | ground : parked |
| Person 1 | |
| Affiliation | other |
| Function | maintenance : technician |
| Qualification | technician : powerplant technician : airframe |
| Experience | maintenance lead technician : 2 maintenance technician : 7 |
| ASRS Report | 626378 |
| Person 2 | |
| Affiliation | other |
| Function | maintenance : technician |
| Events | |
| Anomaly | aircraft equipment problem : critical other anomaly |
| Independent Detector | other flight crewa other flight crewb |
| Resolutory Action | none taken : insufficient time |
| Consequence | other other |
| Factors | |
| Maintenance | performance deficiency : testing |
| Supplementary | |
| Problem Areas | Maintenance Human Performance Aircraft |
| Primary Problem | Aircraft |
Narrative:
On jul/thu/04, ramp pulled aircraft X out of the hangar and put it on the ramp so I could do a leak check of hydraulic pump and taxi the aircraft to the compass rose to do a compass check. I started the #2 engine and ran it at idle for about 10 mins while mr X did the leak check. I sat in the left seat and held the brakes and advanced the throttle to about 45% north, RPM for about 10-15 seconds. After about 5 more mins of the aircraft running at idle I had mr X situation in the right seat and hold the brakes with the #2 engine at idle so I could close the door. After I closed the door, I began to taxi, I took my feet off of the brakes and slightly moved the throttle as soon as I felt the aircraft move slightly (roll). I did a brake check, again, right/left brake lights came on and I felt the aircraft stop. I bumped the throttle up very slightly until it again began to roll, then I pulled the throttle back to idle and tried to turn the aircraft. It did not respond so I applied the brakes, but it still did not stop. By the time I pulled the emergency brake we had already hit the C172, I then shut down the engine and APU.
Original NASA ASRS Text
Title: DURING TAXI THE BRAKES AND NOSE STEERING FAILED FOR A FAZO. ACFT STRUCK A PARKED C172. CAUSE OF BRAKE AND NOSE STEERING FAILURE UNKNOWN.
Narrative: ON JUL/THU/04, RAMP PULLED ACFT X OUT OF THE HANGAR AND PUT IT ON THE RAMP SO I COULD DO A LEAK CHK OF HYD PUMP AND TAXI THE ACFT TO THE COMPASS ROSE TO DO A COMPASS CHK. I STARTED THE #2 ENG AND RAN IT AT IDLE FOR ABOUT 10 MINS WHILE MR X DID THE LEAK CHK. I SAT IN THE L SEAT AND HELD THE BRAKES AND ADVANCED THE THROTTLE TO ABOUT 45% N, RPM FOR ABOUT 10-15 SECONDS. AFTER ABOUT 5 MORE MINS OF THE ACFT RUNNING AT IDLE I HAD MR X SIT IN THE R SEAT AND HOLD THE BRAKES WITH THE #2 ENG AT IDLE SO I COULD CLOSE THE DOOR. AFTER I CLOSED THE DOOR, I BEGAN TO TAXI, I TOOK MY FEET OFF OF THE BRAKES AND SLIGHTLY MOVED THE THROTTLE AS SOON AS I FELT THE ACFT MOVE SLIGHTLY (ROLL). I DID A BRAKE CHK, AGAIN, R/L BRAKE LIGHTS CAME ON AND I FELT THE ACFT STOP. I BUMPED THE THROTTLE UP VERY SLIGHTLY UNTIL IT AGAIN BEGAN TO ROLL, THEN I PULLED THE THROTTLE BACK TO IDLE AND TRIED TO TURN THE ACFT. IT DID NOT RESPOND SO I APPLIED THE BRAKES, BUT IT STILL DID NOT STOP. BY THE TIME I PULLED THE EMER BRAKE WE HAD ALREADY HIT THE C172, I THEN SHUT DOWN THE ENG AND APU.
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.