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A line mechanic was informed he had replaced a triple seat assembly on a B737-400 aircraft with an incorrect seat; even though he and a lead mechanic had followed the manuals. Their company illustrated parts catalog (ipc) and component maintenance manuals (cmm) had not been updated and were inaccurate.
| Attributes | |
| ACN | 936289 |
| Time | |
| Date | 201103 |
| Local Time Of Day | 0001-0600 |
| Place | |
| Locale Reference | ZZZ.Airport |
| State Reference | US |
| Environment | |
| Light | Night |
| Aircraft 1 | |
| Make Model Name | B737-400 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Parked |
| Component | |
| Aircraft Component | Pax Seat |
| Person 1 | |
| Function | Technician |
| Qualification | Maintenance Powerplant Maintenance Airframe |
| Events | |
| Anomaly | Aircraft Equipment Problem Critical |
Narrative:
I was assigned to replace a triple seat in a B737-400 aircraft. My lead mechanic and I researched the part number (P/north) using company illustrated parts catalog (ipc) and component maintenance manual (cmm) to confirm the correct part to install. We found the part; I installed the seat; and signed it off as completed.this morning I was informed that the company had submitted a self-disclosure because the wrong seat for that position had been installed. This was due to the company not updating the ipc and cmm. My lead and I did everything by the book; but the book was inaccurate. Make sure all company documents are kept up to date. Also; simplify the charts for the seats installed on the aircraft.
Original NASA ASRS Text
Title: A Line Mechanic was informed he had replaced a triple seat assembly on a B737-400 aircraft with an incorrect seat; even though he and a Lead Mechanic had followed the manuals. Their company Illustrated Parts Catalog (IPC) and Component Maintenance Manuals (CMM) had not been updated and were inaccurate.
Narrative: I was assigned to replace a triple seat in a B737-400 aircraft. My Lead Mechanic and I researched the Part Number (P/N) using company Illustrated Parts Catalog (IPC) and Component Maintenance Manual (CMM) to confirm the correct part to install. We found the part; I installed the seat; and signed it off as completed.This morning I was informed that the company had submitted a self-disclosure because the wrong seat for that position had been installed. This was due to the company not updating the IPC and CMM. My Lead and I did everything by the book; but the book was inaccurate. Make sure all company documents are kept up to date. Also; simplify the charts for the seats installed on the aircraft.
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.