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Commuter light transport lost electric power to the bus that controls steering and brakes. Aircraft hit a fence with no injury to passenger or crew.
| Attributes | |
| ACN | 157815 |
| Time | |
| Date | 199009 |
| Day | Sat |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | atc facility : gas airport : gad |
| State Reference | AL |
| 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 | Light Transport, Low Wing, 2 Turboprop Eng |
| Flight Phase | ground other : taxi |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : instrument pilot : commercial pilot : cfi |
| Experience | flight time last 90 days : 260 flight time total : 2100 |
| ASRS Report | 157815 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 150 flight time total : 4300 flight time type : 900 |
| ASRS Report | 157686 |
| Events | |
| Anomaly | aircraft equipment problem : critical other anomaly |
| Independent Detector | other flight crewa |
| Resolutory Action | none taken : unable none taken : insufficient time |
| Consequence | other |
| Supplementary | |
| Primary Problem | Aircraft |
| Air Traffic Incident | other |
Narrative:
After landing on runway 6 at gad, we were taxiing in to the terminal. We rolled out to the end of the runway, turned off to the right and the captain called for the after landing checklist. The captain said 'I'll taxi slow so you can finish the checklist' since it is a very short taxi to our ramp. As I was running the checklist, I noted both left fuel pumps were cycling on and off while the switches were in the automatic position. (Normal switch position for flight). The captain saw the pumps cycling and since we were going to shut down the left engine for taxi in (normal practice) I turned them off, since the engine driven high pressure pump will supply fuel while the aircraft is at low altitude. The fuel pumps do not appear to be a factor in this incident, but I wanted to note that they were cycling. As I completed the checklist, the captain was preparing to shut down the left engine. I was looking at the overhead panel completing the checklist when the captain said 'I've got no steering.' I looked down and saw we were rolling toward a chain link fence and power pole at the edge of the ramp. I noticed the capts EFIS tubes were blank and some left engine indicators were blank. The captain was applying brakes and selected full reverse with the power levers. Since we were very close to the fence, I applied the brakes but the aircraft did not slow and I noted no change in engine sound. As we impacted the fence, the captain locked the emergency brake, and the grass, fence, and brakes stopped the aircraft short of the power pole. We opened the cockpit door to check on our F/a and single passenger. They were not injured, nor was the captain or myself since we were going slow. The captain and I shut down the aircraft and we exited through the airstair door as we normally would. The time period from when the captain told me about no steering to when we hit the fence was only a few seconds and we were trying to stop the aircraft safely. Our maintenance personnel are investigating the cause of the electrical failure.
Original NASA ASRS Text
Title: COMMUTER LTT LOST ELECTRIC POWER TO THE BUS THAT CTLS STEERING AND BRAKES. ACFT HIT A FENCE WITH NO INJURY TO PASSENGER OR CREW.
Narrative: AFTER LNDG ON RWY 6 AT GAD, WE WERE TAXIING IN TO THE TERMINAL. WE ROLLED OUT TO THE END OF THE RWY, TURNED OFF TO THE R AND THE CAPT CALLED FOR THE AFTER LNDG CHKLIST. THE CAPT SAID 'I'LL TAXI SLOW SO YOU CAN FINISH THE CHKLIST' SINCE IT IS A VERY SHORT TAXI TO OUR RAMP. AS I WAS RUNNING THE CHKLIST, I NOTED BOTH L FUEL PUMPS WERE CYCLING ON AND OFF WHILE THE SWITCHES WERE IN THE AUTO POS. (NORMAL SWITCH POS FOR FLT). THE CAPT SAW THE PUMPS CYCLING AND SINCE WE WERE GOING TO SHUT DOWN THE L ENG FOR TAXI IN (NORMAL PRACTICE) I TURNED THEM OFF, SINCE THE ENG DRIVEN HIGH PRESSURE PUMP WILL SUPPLY FUEL WHILE THE ACFT IS AT LOW ALT. THE FUEL PUMPS DO NOT APPEAR TO BE A FACTOR IN THIS INCIDENT, BUT I WANTED TO NOTE THAT THEY WERE CYCLING. AS I COMPLETED THE CHKLIST, THE CAPT WAS PREPARING TO SHUT DOWN THE L ENG. I WAS LOOKING AT THE OVERHEAD PANEL COMPLETING THE CHKLIST WHEN THE CAPT SAID 'I'VE GOT NO STEERING.' I LOOKED DOWN AND SAW WE WERE ROLLING TOWARD A CHAIN LINK FENCE AND PWR POLE AT THE EDGE OF THE RAMP. I NOTICED THE CAPTS EFIS TUBES WERE BLANK AND SOME L ENG INDICATORS WERE BLANK. THE CAPT WAS APPLYING BRAKES AND SELECTED FULL REVERSE WITH THE PWR LEVERS. SINCE WE WERE VERY CLOSE TO THE FENCE, I APPLIED THE BRAKES BUT THE ACFT DID NOT SLOW AND I NOTED NO CHANGE IN ENG SOUND. AS WE IMPACTED THE FENCE, THE CAPT LOCKED THE EMER BRAKE, AND THE GRASS, FENCE, AND BRAKES STOPPED THE ACFT SHORT OF THE PWR POLE. WE OPENED THE COCKPIT DOOR TO CHK ON OUR F/A AND SINGLE PAX. THEY WERE NOT INJURED, NOR WAS THE CAPT OR MYSELF SINCE WE WERE GOING SLOW. THE CAPT AND I SHUT DOWN THE ACFT AND WE EXITED THROUGH THE AIRSTAIR DOOR AS WE NORMALLY WOULD. THE TIME PERIOD FROM WHEN THE CAPT TOLD ME ABOUT NO STEERING TO WHEN WE HIT THE FENCE WAS ONLY A FEW SECS AND WE WERE TRYING TO STOP THE ACFT SAFELY. OUR MAINT PERSONNEL ARE INVESTIGATING THE CAUSE OF THE ELECTRICAL FAILURE.
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.