# SDR ASAA12511156

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 24, 2012
- Submitted: February 28, 2012
- Operation: Air carrier
- Aircraft: [N569AS](https://openairdocs.org/aircraft/N569AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35184
- Aircraft time: 18,821 hours, 6,116 cycles
- System (JASC): [2421 · AC Generator-Alternator](https://openairdocs.org/jasc/2421)
- Part: Idg
- Part number: 761574B
- Part serial: AAAH003148
- Condition: Defective
- Location: Nr 1 Engine
- Part time: 9,886 hours, 3,175 cycles
- Stage of operation: TX
- How discovered: O
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA12511156

## Discrepancy

NR 1 ENG IDG LIGHT COMING OFF AND ON.  VERIFIED NR 1 ENGINE DRIVE LIGHT INTERMITTENT RAN NR 1 ENGINE WITH GOOD FREQ'S AND VOLTS.  INSPECTED NR 1 ENG IDG PLUG DP1206 FOUND RESISTANCE READING 193.6 OHMS BETWEEN PINS 5 AND 6 REF WD 24 11 11 AND FIM 24 11 00 810 801.  REPLACED NR 1 IDG REF MM 24 11 11 OPS & LEAK CK GOOD.

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