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A B757-300 aircraft passenger reported seeing a tool on top of the left engine pylon during taxiing for take-off.
| Attributes | |
| ACN | 750733 |
| Time | |
| Date | 200708 |
| Place | |
| Locale Reference | airport : zzz.airport |
| State Reference | US |
| Altitude | agl single value : 0 |
| Aircraft 1 | |
| Controlling Facilities | tower : iad.tower |
| Operator | common carrier : air carrier |
| Make Model Name | B757-300 |
| Operating Under FAR Part | Part 121 |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | maintenance : technician oversight : supervisor |
| Qualification | technician : airframe technician : powerplant |
| ASRS Report | 750733 |
| Person 2 | |
| Function | observation : passenger |
| Events | |
| Anomaly | aircraft equipment problem : less severe maintenance problem : improper maintenance non adherence : far non adherence : published procedure |
| Independent Detector | other other : 2 |
| Resolutory Action | other |
| Consequence | other |
| Factors | |
| Maintenance | contributing factor : briefing performance deficiency : non compliance with legal requirements performance deficiency : scheduled maintenance |
| Supplementary | |
| Problem Areas | Maintenance Human Performance |
| Primary Problem | Maintenance Human Performance |
Narrative:
Aircraft was an ron on the night of aug/xa/07. It was being troubleshot for a right engine bleed placard on gate by the previous shift. That shift turned it over to the next shift for a reverse flow controller change. The aircraft went to the blocks at XA00. The valve change was no help. The aircraft needed more troubleshooting. Due to gate restraints and hangar space we parked the aircraft on remote maintenance area. No work was done at this time. An hour later I chose to bring it to the hangar. The aircraft was in the hangar through the night and into the next afternoon for troubleshooting. The aircraft was finished in the early afternoon and repositioned to the gate. Upon taxiing for takeoff for flight it was reported to the flight crew; by a passenger; that a wrench was sitting on the top of the pylon on the left engine. I was called to investigate the item at the hardstand. I took my lead technician and a lift truck to the aircraft. The tool was removed by maintenance at the airport holding area.
Original NASA ASRS Text
Title: A B757-300 ACFT PASSENGER REPORTED SEEING A TOOL ON TOP OF THE LEFT ENG PYLON DURING TAXIING FOR TAKE-OFF.
Narrative: ACFT WAS AN RON ON THE NIGHT OF AUG/XA/07. IT WAS BEING TROUBLESHOT FOR A R ENG BLEED PLACARD ON GATE BY THE PREVIOUS SHIFT. THAT SHIFT TURNED IT OVER TO THE NEXT SHIFT FOR A REVERSE FLOW CTLR CHANGE. THE ACFT WENT TO THE BLOCKS AT XA00. THE VALVE CHANGE WAS NO HELP. THE ACFT NEEDED MORE TROUBLESHOOTING. DUE TO GATE RESTRAINTS AND HANGAR SPACE WE PARKED THE ACFT ON REMOTE MAINT AREA. NO WORK WAS DONE AT THIS TIME. AN HR LATER I CHOSE TO BRING IT TO THE HANGAR. THE ACFT WAS IN THE HANGAR THROUGH THE NIGHT AND INTO THE NEXT AFTERNOON FOR TROUBLESHOOTING. THE ACFT WAS FINISHED IN THE EARLY AFTERNOON AND REPOSITIONED TO THE GATE. UPON TAXIING FOR TKOF FOR FLT IT WAS RPTED TO THE FLT CREW; BY A PAX; THAT A WRENCH WAS SITTING ON THE TOP OF THE PYLON ON THE L ENG. I WAS CALLED TO INVESTIGATE THE ITEM AT THE HARDSTAND. I TOOK MY LEAD TECHNICIAN AND A LIFT TRUCK TO THE ACFT. THE TOOL WAS REMOVED BY MAINT AT THE ARPT HOLDING AREA.
Data retrieved from NASA's ASRS site as of January 2009 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.