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Several B777 aircraft had incorrect engine electrical harnesses installed during a service bulletin accomplishment. Engine manufacturer approved old harness installation.
| Attributes | |
| ACN | 687532 |
| Time | |
| Date | 200510 |
| Place | |
| Locale Reference | airport : zzz.airport |
| State Reference | US |
| Altitude | agl single value : 0 |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | B777 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | maintenance : technician |
| ASRS Report | 687532 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | maintenance : lead technician |
| ASRS Report | 687533 |
| Events | |
| Anomaly | aircraft equipment problem : critical maintenance problem : improper maintenance maintenance problem : improper documentation non adherence : published procedure non adherence : far |
| Independent Detector | other other : 5 |
| Resolutory Action | none taken : detected after the fact |
| Consequence | other other |
| Factors | |
| Maintenance | contributing factor : engineering procedure contributing factor : schedule pressure contributing factor : non availability of parts |
| Supplementary | |
| Problem Areas | Maintenance Human Performance Aircraft Company |
| Primary Problem | Maintenance Human Performance |
| Situations | |
| Publication | Svc Bulletin |
Narrative:
Engine manufacturer could not supply (harness was not available) the harness that was needed. I notified my lead technician supervisor; planner; and technician lead that the harness was not available. I then asked my lead; technician lead; and supervisor to verify/confirm if the old style and new style harness were compatible with each other. I was then informed by my technician lead that mr X (manufacturer) had given him a verbal; that the old style harness could be installed with the new style harness. I was then given a verbal to install the old style and new style harness together; by my lead technician and technician lead. My supervisor was informed of these events. Field trip to correct this action. Engine manufacturer giving incorrect information to the shop floor that both harness halves could be installed.
Original NASA ASRS Text
Title: SEVERAL B777 ACFT HAD INCORRECT ENG ELECTRICAL HARNESSES INSTALLED DURING A SVC BULLETIN ACCOMPLISHMENT. ENG MANUFACTURER APPROVED OLD HARNESS INSTALLATION.
Narrative: ENG MANUFACTURER COULD NOT SUPPLY (HARNESS WAS NOT AVAILABLE) THE HARNESS THAT WAS NEEDED. I NOTIFIED MY LEAD TECHNICIAN SUPVR; PLANNER; AND TECHNICIAN LEAD THAT THE HARNESS WAS NOT AVAILABLE. I THEN ASKED MY LEAD; TECHNICIAN LEAD; AND SUPVR TO VERIFY/CONFIRM IF THE OLD STYLE AND NEW STYLE HARNESS WERE COMPATIBLE WITH EACH OTHER. I WAS THEN INFORMED BY MY TECHNICIAN LEAD THAT MR X (MANUFACTURER) HAD GIVEN HIM A VERBAL; THAT THE OLD STYLE HARNESS COULD BE INSTALLED WITH THE NEW STYLE HARNESS. I WAS THEN GIVEN A VERBAL TO INSTALL THE OLD STYLE AND NEW STYLE HARNESS TOGETHER; BY MY LEAD TECHNICIAN AND TECHNICIAN LEAD. MY SUPVR WAS INFORMED OF THESE EVENTS. FIELD TRIP TO CORRECT THIS ACTION. ENG MANUFACTURER GIVING INCORRECT INFO TO THE SHOP FLOOR THAT BOTH HARNESS HALVES COULD BE INSTALLED.
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.