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Mechanics checking nose gear problem, put aircraft on jacks but used wrong hole for jack point. Aircraft fell off jacks.
| Attributes | |
| ACN | 298109 |
| Time | |
| Date | 199502 |
| Day | Tue |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | airport : phl |
| State Reference | PA |
| Altitude | agl bound lower : 0 agl bound upper : 0 |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | MD-80 Series (DC-9-80) Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Plan | None |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | other personnel other |
| Qualification | other other : other |
| ASRS Report | 298109 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | other personnel other |
| Qualification | other other : other |
| Events | |
| Anomaly | aircraft equipment problem : less severe other anomaly other |
| Independent Detector | other other : unspecified |
| Resolutory Action | other |
| Consequence | other |
| Supplementary | |
| Primary Problem | Aircraft |
| Air Traffic Incident | other |
Narrative:
Aircraft was ferried to phl with nose gear unsafe light from syr. Crew that ferried aircraft noted they had not had a nose gear light problem. There was no write-up or verbal about what syr mechanics did to aircraft. Put aircraft in hangar. Talked to tech center about write-ups on aircraft. Decided to jack aircraft and swing the nose gear, to see if we could get problem to occur. Before jacking aircraft we discussed how we were going to jack aircraft. Aircraft was jacked without any problems. Operated nose gear numerous times, everything ok. Started to let gear down when we heard a noise, the aircraft slowly fell to the ground. Forward aircraft jack pad was installed in drain line hole. Drain line hole and jack pad hole are about the same size. There were no markings on either hole. To indicate drain hole or jacking paint. When approaching aircraft from right side drain must also hide jack pad hole. I think by marking holes with an indication of jack point and not a jack point would prevent this problem from happening again, also more important to stop anyone from serious harm.
Original NASA ASRS Text
Title: MECHS CHKING NOSE GEAR PROB, PUT ACFT ON JACKS BUT USED WRONG HOLE FOR JACK POINT. ACFT FELL OFF JACKS.
Narrative: ACFT WAS FERRIED TO PHL WITH NOSE GEAR UNSAFE LIGHT FROM SYR. CREW THAT FERRIED ACFT NOTED THEY HAD NOT HAD A NOSE GEAR LIGHT PROB. THERE WAS NO WRITE-UP OR VERBAL ABOUT WHAT SYR MECHS DID TO ACFT. PUT ACFT IN HANGAR. TALKED TO TECH CTR ABOUT WRITE-UPS ON ACFT. DECIDED TO JACK ACFT AND SWING THE NOSE GEAR, TO SEE IF WE COULD GET PROB TO OCCUR. BEFORE JACKING ACFT WE DISCUSSED HOW WE WERE GOING TO JACK ACFT. ACFT WAS JACKED WITHOUT ANY PROBS. OPERATED NOSE GEAR NUMEROUS TIMES, EVERYTHING OK. STARTED TO LET GEAR DOWN WHEN WE HEARD A NOISE, THE ACFT SLOWLY FELL TO THE GND. FORWARD ACFT JACK PAD WAS INSTALLED IN DRAIN LINE HOLE. DRAIN LINE HOLE AND JACK PAD HOLE ARE ABOUT THE SAME SIZE. THERE WERE NO MARKINGS ON EITHER HOLE. TO INDICATE DRAIN HOLE OR JACKING PAINT. WHEN APCHING ACFT FROM R SIDE DRAIN MUST ALSO HIDE JACK PAD HOLE. I THINK BY MARKING HOLES WITH AN INDICATION OF JACK POINT AND NOT A JACK POINT WOULD PREVENT THIS PROB FROM HAPPENING AGAIN, ALSO MORE IMPORTANT TO STOP ANYONE FROM SERIOUS HARM.
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.