 |
37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
An emb-135KL (erj-140LR) aileron damper to wing attach bolt worked loose causing minor damage. Bolt not safetied. Aileron bushings previously replaced.
| Attributes | |
| ACN | 753521 |
| Time | |
| Date | 200703 |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | airport : zzz.airport |
| State Reference | US |
| Altitude | agl single value : 0 |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | EMB ERJ 140 ER&LR |
| Operating Under FAR Part | Part 121 |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | maintenance : inspector |
| Qualification | technician : inspection authority |
| ASRS Report | 753521 |
| 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 other |
| Factors | |
| Maintenance | contributing factor : briefing performance deficiency : repair performance deficiency : installation performance deficiency : inspection performance deficiency : non compliance with legal requirements |
| Supplementary | |
| Problem Areas | Maintenance Human Performance Aircraft |
| Primary Problem | Maintenance Human Performance |
Narrative:
Left-hand aileron hinge bushings worn. Aileron was removed and bushings replaced. Aileron damper removed and replaced due to shifted bearing during removal. Damper was installed by maintenance but damper to wing attach bolt worked loose causing minor damage. Back side of 'write up' shows my inspection stamp. I feel with 31 yrs maintenance experience and 6 months since the installation of the damper; it would be most unusual to miss the safety of the bolt in question. It would have been nice to inspect the condition of the bolt that was found unsecured by ZZZ maintenance.
Original NASA ASRS Text
Title: AN EMB-135KL (ERJ-140LR) AILERON DAMPER TO WING ATTACH BOLT WORKED LOOSE CAUSING MINOR DAMAGE. BOLT NOT SAFETIED. AILERON BUSHINGS PREVIOUSLY REPLACED.
Narrative: L-HAND AILERON HINGE BUSHINGS WORN. AILERON WAS REMOVED AND BUSHINGS REPLACED. AILERON DAMPER REMOVED AND REPLACED DUE TO SHIFTED BEARING DURING REMOVAL. DAMPER WAS INSTALLED BY MAINT BUT DAMPER TO WING ATTACH BOLT WORKED LOOSE CAUSING MINOR DAMAGE. BACK SIDE OF 'WRITE UP' SHOWS MY INSPECTION STAMP. I FEEL WITH 31 YRS MAINT EXPERIENCE AND 6 MONTHS SINCE THE INSTALLATION OF THE DAMPER; IT WOULD BE MOST UNUSUAL TO MISS THE SAFETY OF THE BOLT IN QUESTION. IT WOULD HAVE BEEN NICE TO INSPECT THE CONDITION OF THE BOLT THAT WAS FOUND UNSECURED BY ZZZ MAINT.
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.