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A B747-100 returned to the field due to a wing leading edge overheat warning caused by an improperly installed wing anti-ice pneumatic duct.
| Attributes | |
| ACN | 425126 |
| Time | |
| Date | 199901 |
| Day | Mon |
| 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 | |
| Controlling Facilities | tower : mad |
| Operator | common carrier : air carrier |
| Make Model Name | B747-100 |
| Flight Phase | other |
| Flight Plan | None |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | other personnel other |
| Qualification | other other : other |
| ASRS Report | 425126 |
| 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 |
| Independent Detector | aircraft equipment other aircraft equipment : unspecified other flight crewa |
| Resolutory Action | none taken : detected after the fact |
| Consequence | Other |
| Supplementary | |
| Air Traffic Incident | other |
Narrative:
I was involved in aircraft xyz return to field for a right wing leading edge overheat. My involvement was limited to installing a pneumatic Y duct aft of the area where defect was found. I did not work on the specific part which created the return to field. During company's interview, it was found the job card did not require a leak check after complete restoration of valves and ducting.
Original NASA ASRS Text
Title: A B747-100 RETURNED TO THE FIELD DUE TO A WING LEADING EDGE OVERHEAT WARNING CAUSED BY AN IMPROPERLY INSTALLED WING ANTI-ICE PNEUMATIC DUCT.
Narrative: I WAS INVOLVED IN ACFT XYZ RETURN TO FIELD FOR A R WING LEADING EDGE OVERHEAT. MY INVOLVEMENT WAS LIMITED TO INSTALLING A PNEUMATIC Y DUCT AFT OF THE AREA WHERE DEFECT WAS FOUND. I DID NOT WORK ON THE SPECIFIC PART WHICH CREATED THE RETURN TO FIELD. DURING COMPANY'S INTERVIEW, IT WAS FOUND THE JOB CARD DID NOT REQUIRE A LEAK CHK AFTER COMPLETE RESTORATION OF VALVES AND DUCTING.
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.