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A B757 mechanic replaced a used aft passenger oxygen bottle with bottle not listed as applicable to aircraft.
| Attributes | |
| ACN | 767279 |
| Time | |
| Date | 200712 |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | airport : zzz.airport |
| State Reference | US |
| Aircraft 1 | |
| Make Model Name | B757 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | maintenance : lead technician |
| Qualification | technician : airframe technician : powerplant |
| Experience | maintenance lead technician : 20 |
| ASRS Report | 767279 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | oversight : supervisor |
| Events | |
| Anomaly | aircraft equipment problem : less severe maintenance problem : improper documentation maintenance problem : improper maintenance non adherence : far non adherence : published procedure |
| Independent Detector | other other : 1 |
| Resolutory Action | none taken : detected after the fact |
| Consequence | other |
| Factors | |
| Maintenance | performance deficiency : installation performance deficiency : non compliance with legal requirements performance deficiency : logbook entry |
| Supplementary | |
| Problem Areas | Maintenance Human Performance |
| Primary Problem | Maintenance Human Performance |
Narrative:
Aircraft arrived with aft pob (passenger oxygen bottle) used. Had what I thought was an interchangeable; replacement bottle on zone room shelf. They looked identical. Fit in same location holder. After flight departs; entering paperwork generated 'forced part' screen in computer system. Researching ipc found that bottle placed aboard not listed as applicable to aircraft (B777 only). Contacted supervisor; who in turn contacted maintenance control. Aircraft to arrive XXX; then turn to YYY. Maintenance control to set up bottle to be right and right'ed at XXX. Was second day of overtime available. First day was called at XA15; at work by XB30. Worked up to XQ00. Second day started at XA00. Overtime was offered on dayshift; I normally work swing-shift. At time of incident; was on regular shift; after working overtime previous shift. Fatigue.
Original NASA ASRS Text
Title: A B757 MECHANIC REPLACED A USED AFT PASSENGER OXYGEN BOTTLE WITH BOTTLE NOT LISTED AS APPLICABLE TO ACFT.
Narrative: ACFT ARRIVED WITH AFT POB (PAX OXYGEN BOTTLE) USED. HAD WHAT I THOUGHT WAS AN INTERCHANGEABLE; REPLACEMENT BOTTLE ON ZONE ROOM SHELF. THEY LOOKED IDENTICAL. FIT IN SAME LOCATION HOLDER. AFTER FLT DEPARTS; ENTERING PAPERWORK GENERATED 'FORCED PART' SCREEN IN COMPUTER SYS. RESEARCHING IPC FOUND THAT BOTTLE PLACED ABOARD NOT LISTED AS APPLICABLE TO ACFT (B777 ONLY). CONTACTED SUPVR; WHO IN TURN CONTACTED MAINT CTL. ACFT TO ARRIVE XXX; THEN TURN TO YYY. MAINT CTL TO SET UP BOTTLE TO BE R AND R'ED AT XXX. WAS SECOND DAY OF OVERTIME AVAILABLE. FIRST DAY WAS CALLED AT XA15; AT WORK BY XB30. WORKED UP TO XQ00. SECOND DAY STARTED AT XA00. OVERTIME WAS OFFERED ON DAYSHIFT; I NORMALLY WORK SWING-SHIFT. AT TIME OF INCIDENT; WAS ON REGULAR SHIFT; AFTER WORKING OVERTIME PREVIOUS SHIFT. FATIGUE.
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.