# SDR ASAA2018081092725

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 9, 2018
- Submitted: August 10, 2018
- Operation: Air carrier
- Aircraft: [N408AS](https://openairdocs.org/aircraft/N408AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 41732
- Aircraft time: 22,493 hours, 7,367 cycles
- System (JASC): [2432 · Battery/Charger System](https://openairdocs.org/jasc/2432)
- Part: Battery
- Part number: 024147000
- Part serial: 09052001AA890
- Condition: Discharged
- Location: Master
- Part time: 6,785 hours, 2,264 cycles
- Stage of operation: IN
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2018081092725

## Discrepancy

BOTH MAIN BATTERIES WERE DEAD.  ACFT GROUNDED.  REPLACED THE MAIN & AUX BATTERIES IAW AMM 24-31-11.  INSTALLATION TEST CHECKED NORMAL.

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