# SDR ASAA2023030842262

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 8, 2023
- Submitted: March 10, 2023
- Operation: Air carrier
- Aircraft: [N433AS](https://openairdocs.org/aircraft/N433AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 41704
- Aircraft time: 34,683 hours, 10,973 cycles
- System (JASC): [2410 · Alternator-Generator Drive](https://openairdocs.org/jasc/2410)
- Part: Idg
- Part number: 761574B
- Part serial: AAAH009321
- Condition: Leaking
- Location: #1 Engine
- Part time: 32,870 hours, 10,387 cycles
- Stage of operation: TX
- How discovered: V
- Nature of condition: K
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2023030842262

## Discrepancy

OIL RESIDUE ON #1 ENGINE COWLING AND SMALL OIL PUDDLE ON GROUND BENEATH #1 ENGINE. GROUNDED - YES. PERFORMED B737-900 AMM TASK 71-71-00-200-801-F00. FOUND ENG 1 IDG PAD DRAIN LEAKING 6 DROPS /MIN AFTER ENGINE SHUTDOWN. REMOVED AND REPLACED #1 ENGINE IDG REF AMM 24-11-11.

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