# SDR ASAA2020051132715

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 8, 2020
- Submitted: May 11, 2020
- Operation: Air carrier
- Aircraft: [N431AS](https://openairdocs.org/aircraft/N431AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 43255
- Aircraft time: 25,680 hours, 8,301 cycles
- System (JASC): [2421 · AC Generator-Alternator](https://openairdocs.org/jasc/2421)
- Part: Oil Cooler
- Part number: UA5385513
- Part serial: 16812R
- Condition: Leaking
- Location: Nr 2 Idg
- Part time: 3,164 hours, 926 cycles
- Stage of operation: IN
- 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/ASAA2020051132715

## Discrepancy

FOUND EVIDENCE OF OIL LEAKAGE FROM #2 ENGINE IDG AIR/OIL COOLER. GROUNDED - YES. REPLACED #2 ENGINE IDG AIR/OIL COOLER REF B737-900 AMM 24-11-21. LEAK CHECK GOOD.

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