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A B777 was dispatched in non compliance with an improper repair accomplished to the left ram air inlet door resulting in a diversion.
| Attributes | |
| ACN | 436429 |
| Time | |
| Date | 199905 |
| Day | Thu |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : zzz.airport |
| State Reference | US |
| Altitude | agl single value : 0 |
| Environment | |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tower : roc.tower |
| Operator | common carrier : air carrier |
| Make Model Name | B777-200 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | ground : maintenance ground : parked |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Qualification | technician : powerplant technician : airframe |
| ASRS Report | 436429 |
| Events | |
| Anomaly | aircraft equipment problem : critical maintenance problem : improper maintenance non adherence : far non adherence : published procedure |
| Independent Detector | aircraft equipment other aircraft equipment : pack cooling temperature |
| Resolutory Action | flight crew : diverted to another airport |
| Consequence | other |
| Factors | |
| Maintenance | contributing factor : schedule pressure performance deficiency : testing performance deficiency : repair performance deficiency : installation |
| Supplementary | |
| Problem Areas | Maintenance Human Performance |
| Primary Problem | Maintenance Human Performance |
Narrative:
I started working on a engineering change order on aircraft xyz ram air inlet door, left side. I followed my engineering change order instruction, and also did the ram air test. I was told that the aft door was not in its tracks, but on top of tracks. The flight from ZZZ to london had to stop in chicago, swap planes, and be brought back to ZZZ. But the work authority/authorized was written as aft seal missing, which I think caused the noise and the plane to stop in chicago. Aircraft was brought back to ZZZ air carrier hangar for repair. On a B777 aft door ram cannot go or fit on top of tracks, will not fit.
Original NASA ASRS Text
Title: A B777 WAS DISPATCHED IN NON COMPLIANCE WITH AN IMPROPER REPAIR ACCOMPLISHED TO THE L RAM AIR INLET DOOR RESULTING IN A DIVERSION.
Narrative: I STARTED WORKING ON A ENGINEERING CHANGE ORDER ON ACFT XYZ RAM AIR INLET DOOR, L SIDE. I FOLLOWED MY ENGINEERING CHANGE ORDER INSTRUCTION, AND ALSO DID THE RAM AIR TEST. I WAS TOLD THAT THE AFT DOOR WAS NOT IN ITS TRACKS, BUT ON TOP OF TRACKS. THE FLT FROM ZZZ TO LONDON HAD TO STOP IN CHICAGO, SWAP PLANES, AND BE BROUGHT BACK TO ZZZ. BUT THE WORK AUTH WAS WRITTEN AS AFT SEAL MISSING, WHICH I THINK CAUSED THE NOISE AND THE PLANE TO STOP IN CHICAGO. ACFT WAS BROUGHT BACK TO ZZZ ACR HANGAR FOR REPAIR. ON A B777 AFT DOOR RAM CANNOT GO OR FIT ON TOP OF TRACKS, WILL NOT FIT.
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.