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A B757-200 experienced right aileron binding after a hydraulic fitting was replaced located in close proximity to the aileron power control unit rod end.
| Attributes | |
| ACN | 398886 |
| Time | |
| Date | 199804 |
| Day | Sun |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : zzz |
| State Reference | US |
| Altitude | agl bound lower : 0 agl bound upper : 0 |
| Environment | |
| Light | Daylight |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | B757-200 |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | Other Other |
| Flight Phase | other |
| Flight Plan | None |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | other personnel other |
| Qualification | other other : other |
| ASRS Report | 398886 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | other personnel other |
| Qualification | other other : other |
| Events | |
| Anomaly | aircraft equipment problem : critical non adherence : far non adherence : published procedure other anomaly other |
| Independent Detector | other flight crewa |
| Resolutory Action | none taken : detected after the fact other |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Aircraft |
| Air Traffic Incident | other |
Narrative:
Following a non routine at wing station 700 r-wing a 90 degree elbow was leaking hydraulic fluid and was previously removed. Line and fitting were capped. I installed a new 90 degree elbow fitting located on the inboard side of the aileron support structure. The elbow was leak checked and aileron was operations checked by the inspection department (hearsay). The aircraft took off in flight from ZZZ to YYY. The pilot noticed a binding in the right aileron. In YYY, after further review, the maintenance department found a hydraulic line rubbing the input rod (or bolt at rod end) on the outboard side of aileron support structure, at wing station approximately 705, 11 inches inboard of the inboard positive control area. I noticed the hydraulic lines passing by the input rod in that area have very little clearance, and must be examined more closely when work is being done there.
Original NASA ASRS Text
Title: A B757-200 EXPERIENCED R AILERON BINDING AFTER A HYD FITTING WAS REPLACED LOCATED IN CLOSE PROX TO THE AILERON PWR CTL UNIT ROD END.
Narrative: FOLLOWING A NON ROUTINE AT WING STATION 700 R-WING A 90 DEG ELBOW WAS LEAKING HYD FLUID AND WAS PREVIOUSLY REMOVED. LINE AND FITTING WERE CAPPED. I INSTALLED A NEW 90 DEG ELBOW FITTING LOCATED ON THE INBOARD SIDE OF THE AILERON SUPPORT STRUCTURE. THE ELBOW WAS LEAK CHKED AND AILERON WAS OPS CHKED BY THE INSPECTION DEPT (HEARSAY). THE ACFT TOOK OFF IN FLT FROM ZZZ TO YYY. THE PLT NOTICED A BINDING IN THE R AILERON. IN YYY, AFTER FURTHER REVIEW, THE MAINT DEPT FOUND A HYD LINE RUBBING THE INPUT ROD (OR BOLT AT ROD END) ON THE OUTBOARD SIDE OF AILERON SUPPORT STRUCTURE, AT WING STATION APPROX 705, 11 INCHES INBOARD OF THE INBOARD PCA. I NOTICED THE HYD LINES PASSING BY THE INPUT ROD IN THAT AREA HAVE VERY LITTLE CLRNC, AND MUST BE EXAMINED MORE CLOSELY WHEN WORK IS BEING DONE THERE.
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.