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Boeing 767 captain reported that idg oil out temperatures have been abnormally high in cruise flight due to servicing issues.
| Attributes | |
| ACN | 1544534 |
| Time | |
| Date | 201805 |
| Place | |
| Locale Reference | ZZZ.Airport |
| State Reference | US |
| Aircraft 1 | |
| Make Model Name | B767 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Cruise |
| Flight Plan | IFR |
| Component | |
| Aircraft Component | Generator Drive Indicators and Warning System |
| Person 1 | |
| Function | Captain |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Experience | Flight Crew Total 8656 Flight Crew Type 5872 |
| Events | |
| Anomaly | Aircraft Equipment Problem Less Severe Deviation - Procedural Published Material / Policy |
Narrative:
On 4 of my last 6 flights; one of the integrated drive generators (idg) was over-serviced or under-serviced. Either way; the idg out temperature was abnormally hot in cruise flight. In two of the incidents; the oil level was low by two quarts and in the other two; the oil level was completely full (over-serviced) by two quarts. Either way is detrimental to the jet and usually results in a 'land nearest suitable airport' event. Given how all 4 of these aircraft were discovered in the atlantic ETOPS environment is even more troubling. The obvious questions are: 1.how often is the idg oil level checked? Apparently it may not be frequently enough. 2. Are the mechanics trained in the dangers of an over-serviced idg?
Original NASA ASRS Text
Title: Boeing 767 Captain reported that IDG oil out temperatures have been abnormally high in cruise flight due to servicing issues.
Narrative: On 4 of my last 6 flights; one of the Integrated Drive Generators (IDG) was over-serviced or under-serviced. Either way; the IDG out temperature was abnormally hot in cruise flight. In two of the incidents; the oil level was low by two quarts and in the other two; the oil level was completely full (over-serviced) by two quarts. Either way is detrimental to the jet and usually results in a 'land nearest suitable airport' event. Given how all 4 of these aircraft were discovered in the Atlantic ETOPS environment is even more troubling. The obvious questions are: 1.How often is the IDG oil level checked? Apparently it may not be frequently enough. 2. Are the mechanics trained in the dangers of an over-serviced IDG?
Data retrieved from NASA's ASRS site 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.