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A B737-500 incurred damage to the left wing flap fairing by a tool remaining in the fairing after the flap transmission was svced.
| Attributes | |
| ACN | 641564 |
| Time | |
| Date | 200412 |
| Day | Tue |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | airport : zzz.airport |
| State Reference | US |
| Altitude | agl single value : 0 |
| Aircraft 1 | |
| Controlling Facilities | tower : dfw.tower |
| Operator | common carrier : air carrier |
| Make Model Name | B737-500 |
| Operating Under FAR Part | Part 121 |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | maintenance : technician |
| Qualification | technician : airframe technician : powerplant |
| Experience | maintenance technician : 15 |
| ASRS Report | 641564 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | maintenance : inspector |
| Events | |
| Anomaly | aircraft equipment problem : critical maintenance problem : improper maintenance non adherence : far non adherence : published procedure |
| Resolutory Action | none taken : detected after the fact |
| Consequence | other other |
| Factors | |
| Maintenance | contributing factor : schedule pressure performance deficiency : scheduled maintenance performance deficiency : inspection |
| Supplementary | |
| Problem Areas | Maintenance Human Performance Environmental Factor Aircraft |
| Primary Problem | Maintenance Human Performance |
Narrative:
On dec/tue/04, I worked on aircraft X left wing flap xmissions service as part of A-4 check. Aircraft left hangar for flight in the morning of dec/wed/04 and overnighted in ZZZ. On the morning of 12/thu/04, maintenance found a pair of duckbill pliers had punctured a hole in the #1 flap forward fairing. Upon returning back to work on dec/tue/04, it was brought to my attention what had happened. After inventory of my tools, I noticed a pair of duckbill pliers missing. On the morning of dec/wed/04, I inventoried my tools after my job was complete, and I did not notice a pair of duckbill pliers missing.
Original NASA ASRS Text
Title: A B737-500 INCURRED DAMAGE TO THE L WING FLAP FAIRING BY A TOOL REMAINING IN THE FAIRING AFTER THE FLAP XMISSION WAS SVCED.
Narrative: ON DEC/TUE/04, I WORKED ON ACFT X L WING FLAP XMISSIONS SVC AS PART OF A-4 CHK. ACFT LEFT HANGAR FOR FLT IN THE MORNING OF DEC/WED/04 AND OVERNIGHTED IN ZZZ. ON THE MORNING OF 12/THU/04, MAINT FOUND A PAIR OF DUCKBILL PLIERS HAD PUNCTURED A HOLE IN THE #1 FLAP FORWARD FAIRING. UPON RETURNING BACK TO WORK ON DEC/TUE/04, IT WAS BROUGHT TO MY ATTN WHAT HAD HAPPENED. AFTER INVENTORY OF MY TOOLS, I NOTICED A PAIR OF DUCKBILL PLIERS MISSING. ON THE MORNING OF DEC/WED/04, I INVENTORIED MY TOOLS AFTER MY JOB WAS COMPLETE, AND I DID NOT NOTICE A PAIR OF DUCKBILL PLIERS MISSING.
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.