# SDR HALA2011121600593

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 16, 2011
- Submitted: December 19, 2011
- Operation: Air carrier
- Aircraft: N588HA
- Make and model: Boeing 767-3CB
- Registry model: [Boeing 767-3CB](https://openairdocs.org/model/boeing-767-3cb) (OpenAirDocs)
- Aircraft serial: 33466
- Aircraft time: 35,504 hours, 6,566 cycles
- System (JASC): [2421 · AC Generator-Alternator](https://openairdocs.org/jasc/2421)
- Part: Oil System
- Condition: Low
- Location: Nr 1 Idg
- Stage of operation: DE
- How discovered: O
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/HALA2011121600593

## Discrepancy

ETOPS SIGNIFICANT SYS - TOP OF DESCENT, LT GENERATOR DRIVE LIGHT FLICKERED WITH MOMENTARILY EICAS MESSAGE LT GENERATOR DRIVE.  ON ACFT OVERNIGHT CHECK AFTER ARRIVAL, FOUND NR 1 ENGINE IDG OIL LEVEL TO BE LOW.  SERVICED IDG GROUND IDLE ENGINE RUN CK GOOD.  NO GENERATOR DRIVE LIGHT INDICATOR, OK FOR SVC.

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