# SDR ASAA2016102218440

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 22, 2016
- Submitted: October 24, 2016
- Operation: Air carrier
- Aircraft: [N409AS](https://openairdocs.org/aircraft/N409AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 41733
- Aircraft time: 15,000 hours, 4,872 cycles
- System (JASC): [2421 · AC Generator-Alternator](https://openairdocs.org/jasc/2421)
- Part: Oil Cooler
- Part number: UA5385513
- Part serial: 10054
- Condition: Leaking
- Location: Nr 2 Idg
- Part time: 14,988 hours, 4,869 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/ASAA2016102218440

## Discrepancy

NR 1 ENGINE IDG AIR/OIL COOLER LEAKING OIL.  ACFT GROUNDED.  REMOVED AND REPLACED THE NR 1 ENGINE IDG AIR/OIL COOLER IAW AMM 24-11-21-000-801 FOR REMOVAL AND AMM 24-11-21-400-801 FOR INSTALLATION ACCOMPLISHED TEST 3A IDLE POWER LEAK CHECK IAW AMM 71-00-00-700-801-F00. LEAK CHECKED GOOD.

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