# SDR MALA060581

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 21, 2006
- Submitted: October 27, 2006
- Operation: Air carrier
- Aircraft: N407XJ
- Make and model: Saab 340B
- Registry model: [Saab 340B](https://openairdocs.org/model/saab-340b) (OpenAirDocs)
- Aircraft serial: 340B407
- Aircraft time: 23,242 hours, 24,956 cycles
- System (JASC): [3420 · Attitude and Direction Data System](https://openairdocs.org/jasc/3420)
- Part: Battery
- Part number: 40787
- Part serial: M1148
- Condition: Unknown
- Stage of operation: CL
- How discovered: O
- Nature of condition: O
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/MALA060581

## Discrepancy

AFTER TAKEOFF BOTH F/O EADI AND EHSI WENT BLACK.  QRH HAD NO EFFECT.  JUST PRIOR TO GOING BLACK, SAW A DPM FLAG ON THE EADI.  REPLACED LT AND RT BATTERIES IAW TASK CARD 243401.  P/N 4078-7 LT, S/N OFF M1148, ON J02131 RT, S/N OFF P2128, ON 085585.  GROUND RAN AC ADI AND HIS.  OPS CHECK GOOD.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.