# SDR U2RA2025122900027

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 28, 2025
- Submitted: December 29, 2025
- Operation: Air carrier
- Aircraft: [N936CA](https://openairdocs.org/aircraft/N936CA), registered now
- Make and model: Boeing 747412
- Aircraft serial: 25068
- Aircraft time: 92,267 hours, 18,318 cycles
- Engine: Ge CF680C
- System (JASC): [2421 · AC Generator-Alternator](https://openairdocs.org/jasc/2421)
- Part: Generator
- Part number: 28B26313B
- Part serial: 592
- Condition: Failed
- Location: Apu
- Stage of operation: IN
- How discovered: V
- Nature of condition: B
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/U2RA2025122900027

## Discrepancy

APU GENERATOR #2 HAS SPARKS COMING OUT OF CASE - APU AFTER FIRE INSPECTION IN ACCORDANCE WITH AIRCRAFT MAINTENANCE MANUAL 49-11-00. APU COOLING AIR INTAKE DAMAGED.  APU DEFERRED PER MINIMUM EQUIPMENT LIST AND GENERATOR WILL BE REPLACED AT A LATER DATE.

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