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A B737-900 while having the right inboard trailing edge flap replaced; 2 skin wedges dropped into the right inboard flap track fairing.
| Attributes | |
| ACN | 672126 |
| Time | |
| Date | 200509 |
| Place | |
| Locale Reference | airport : zzz.airport |
| State Reference | US |
| Altitude | agl single value : 0 |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | B737-900 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | ground : maintenance |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | maintenance : technician |
| ASRS Report | 672126 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | maintenance : technician |
| Events | |
| Anomaly | aircraft equipment problem : critical maintenance problem : improper maintenance non adherence : published procedure non adherence : far |
| Independent Detector | other other : 1 |
| Resolutory Action | none taken : detected after the fact |
| Consequence | other |
| Factors | |
| Maintenance | contributing factor : schedule pressure performance deficiency : installation performance deficiency : inspection |
| Supplementary | |
| Problem Areas | Aircraft Environmental Factor Maintenance Human Performance |
| Primary Problem | Maintenance Human Performance |
Narrative:
On sep/fri/05; aircraft X was in the hangar with a damaged r-hand inboard flap. We were to remove the damaged flap panel and install a new one. During the installation procedure; I dropped 2 skin wedges inside the r-hand inboard flap track fairing. I was unable to immediately retrieve them from inside the flap track fairing because I was on top of a ladder; holding a fairly large panel while my co-worker was trying to line the panel up to the flap. By the time we were done positioning the panel; I had completely forgotten about the 2 skin wedges. On sep/sat/05; I remembered that I had left 2 skin wedges in the flap track fairing and notified my supervisor. He made a call to have somebody in ZZZ1 look inside the flap track fairing.
Original NASA ASRS Text
Title: A B737-900 WHILE HAVING THE R INBOARD TRAILING EDGE FLAP REPLACED; 2 SKIN WEDGES DROPPED INTO THE R INBOARD FLAP TRACK FAIRING.
Narrative: ON SEP/FRI/05; ACFT X WAS IN THE HANGAR WITH A DAMAGED R-HAND INBOARD FLAP. WE WERE TO REMOVE THE DAMAGED FLAP PANEL AND INSTALL A NEW ONE. DURING THE INSTALLATION PROC; I DROPPED 2 SKIN WEDGES INSIDE THE R-HAND INBOARD FLAP TRACK FAIRING. I WAS UNABLE TO IMMEDIATELY RETRIEVE THEM FROM INSIDE THE FLAP TRACK FAIRING BECAUSE I WAS ON TOP OF A LADDER; HOLDING A FAIRLY LARGE PANEL WHILE MY CO-WORKER WAS TRYING TO LINE THE PANEL UP TO THE FLAP. BY THE TIME WE WERE DONE POSITIONING THE PANEL; I HAD COMPLETELY FORGOTTEN ABOUT THE 2 SKIN WEDGES. ON SEP/SAT/05; I REMEMBERED THAT I HAD LEFT 2 SKIN WEDGES IN THE FLAP TRACK FAIRING AND NOTIFIED MY SUPVR. HE MADE A CALL TO HAVE SOMEBODY IN ZZZ1 LOOK INSIDE THE FLAP TRACK FAIRING.
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.