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A B747-200 experienced an in-flight engine shutdown. Shutdown was blamed on the pms not deactivated after the intermix engine change.
| Attributes | |
| ACN | 648796 |
| Time | |
| Date | 200501 |
| Place | |
| Locale Reference | airport : zzz.airport |
| State Reference | US |
| Altitude | agl single value : 0 |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | B747-200 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | ground : maintenance |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | maintenance : technician |
| Qualification | technician : airframe technician : fcc technician : powerplant |
| Experience | maintenance technician : 30 |
| ASRS Report | 648796 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | maintenance : technician |
| Events | |
| Anomaly | aircraft equipment problem : critical maintenance problem : improper documentation non adherence : far non adherence : published procedure |
| Independent Detector | other flight crewa |
| Resolutory Action | flight crew : diverted to another airport flight crew : overcame equipment problem |
| Consequence | other other |
| Factors | |
| Maintenance | contributing factor : manuals contributing factor : engineering procedure performance deficiency : logbook entry performance deficiency : non compliance with legal requirements |
| Supplementary | |
| Problem Areas | Aircraft Chart Or Publication Maintenance Human Performance |
| Primary Problem | Chart Or Publication |
Narrative:
The pms was not deactivated on an engine change with intermixed engines. The maintenance manual; the company paperwork (X procedure and Y procedure) do not agree on if it should be inoperative'ed or which beakers to collar. I don't believe the pms caused the shutdown of the engine; but brought the improper deactivation of the pms to the attention of the FAA. I think the company's paperwork must be updated to follow the maintenance manual.
Original NASA ASRS Text
Title: A B747-200 EXPERIENCED AN INFLT ENG SHUTDOWN. SHUTDOWN WAS BLAMED ON THE PMS NOT DEACTIVATED AFTER THE INTERMIX ENG CHANGE.
Narrative: THE PMS WAS NOT DEACTIVATED ON AN ENG CHANGE WITH INTERMIXED ENGS. THE MAINT MANUAL; THE COMPANY PAPERWORK (X PROC AND Y PROC) DO NOT AGREE ON IF IT SHOULD BE INOP'ED OR WHICH BEAKERS TO COLLAR. I DON'T BELIEVE THE PMS CAUSED THE SHUTDOWN OF THE ENG; BUT BROUGHT THE IMPROPER DEACTIVATION OF THE PMS TO THE ATTN OF THE FAA. I THINK THE COMPANY'S PAPERWORK MUST BE UPDATED TO FOLLOW THE MAINT MANUAL.
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.