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A line mechanic having difficulty identifying a company part number (cpn) using the illustrated parts catalog (ipc) to find an engine scavenge oil filter in their company inventory system. A company B737-800 had returned to the gate with a right cfm-56 engine oil clog light 'on'. Maintenance control was able to provide cpn for the scavenge filter.
| Attributes | |
| ACN | 960257 |
| Time | |
| Date | 201107 |
| Local Time Of Day | 0001-0600 |
| Place | |
| Locale Reference | ZZZ.Airport |
| State Reference | US |
| Environment | |
| Light | Night |
| Aircraft 1 | |
| Make Model Name | B737-800 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Parked |
| Flight Plan | IFR |
| Component | |
| Aircraft Component | Oil Filter |
| Person 1 | |
| Function | Technician |
| Qualification | Maintenance Airframe Maintenance Powerplant |
| Experience | Maintenance Lead Technician 0 Maintenance Technician 0 |
| Events | |
| Anomaly | Aircraft Equipment Problem Less Severe |
Narrative:
A B737-800 aircraft returned to the gate with a right engine oil clog light. I was assigned to assist another mechanic. According to the [boeing] fault isolation manual (fim) the scavenge oil filter was to be removed and inspected for debris. B737 aircraft illustrated parts catalog (ipc) 79-21-04-01 showed the scavenge oil filter element as item # 30. This part was never purchased and consequently not in the [company inventory] system. I conferred with maintenance control and they provided me with a company part number (cpn) as the filter element used on company B737 fleet. A search of this cpn shows up in ipc 79-21-04-01 as item # -27. The 'dash' in front of the item number denotes it's not shown in the ipc reference. It's impossible to derive the cpn for the scavenge oil filter element solely using the ipc.
Original NASA ASRS Text
Title: A Line Mechanic having difficulty identifying a Company Part Number (CPN) using the Illustrated Parts Catalog (IPC) to find an engine scavenge oil filter in their company inventory system. A company B737-800 had returned to the gate with a right CFM-56 engine oil clog light 'On'. Maintenance Control was able to provide CPN for the scavenge filter.
Narrative: A B737-800 aircraft returned to the gate with a right Engine Oil Clog light. I was assigned to assist another Mechanic. According to the [Boeing] Fault Isolation Manual (FIM) the Scavenge Oil Filter was to be removed and inspected for debris. B737 aircraft Illustrated Parts Catalog (IPC) 79-21-04-01 showed the scavenge oil filter element as Item # 30. This part was never purchased and consequently not in the [company inventory] system. I conferred with Maintenance Control and they provided me with a Company Part Number (CPN) as the filter element used on company B737 fleet. A search of this CPN shows up in IPC 79-21-04-01 as Item # -27. The 'Dash' in front of the Item Number denotes it's not shown in the IPC reference. It's impossible to derive the CPN for the scavenge oil filter element solely using the IPC.
Data retrieved from NASA's ASRS site as of April 2012 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.