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A mechanic working the teardown and build-up of pw-4000 engines reports his company changed oil types; the new oil allegedly causing the o-rings to deteriorate. Engineering has been notified numerous times and have not made appropriate changes to reflect new o-ring part numbers.
| Attributes | |
| ACN | 836463 |
| Time | |
| Date | 200905 |
| Local Time Of Day | 0001-0600 |
| Place | |
| Locale Reference | ZZZ.Airport |
| State Reference | US |
| Environment | |
| Light | Daylight |
| Aircraft 1 | |
| Make Model Name | Commercial Fixed Wing |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Parked |
| Route In Use | None |
| Component | |
| Aircraft Component | Engine Oil Seals |
| Person 1 | |
| Function | Technician |
| Qualification | Maintenance Airframe Maintenance Powerplant |
| Events | |
| Anomaly | Aircraft Equipment Problem Critical Deviation - Procedural FAR Deviation - Procedural Maintenance Deviation - Procedural Published Material / Policy |
Narrative:
Pw 4000 engine oil changed from 2380 to 2197 and o-rings not compatible with new engine oil 2197. New engine oil deteriorates o-rings; which could cause loss of engine oil. Illustrated parts catalog (ipc) and job instruction cards (jic) have never been changed to reflect new o-ring part numbers. This has been ongoing since 2004. Management; engineering and quality assurance have been notified numerous times with no action taken on this problem.
Original NASA ASRS Text
Title: A Mechanic working the teardown and build-up of PW-4000 engines reports his company changed oil types; the new oil allegedly causing the O-rings to deteriorate. Engineering has been notified numerous times and have not made appropriate changes to reflect new O-ring part numbers.
Narrative: PW 4000 engine oil changed from 2380 to 2197 and O-rings not compatible with new engine oil 2197. New engine oil deteriorates O-rings; which could cause loss of engine oil. Illustrated parts catalog (IPC) and job instruction cards (JIC) have never been changed to reflect new O-ring part numbers. This has been ongoing since 2004. Management; Engineering and Quality Assurance have been notified numerous times with no action taken on this problem.
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.