# SDR 2002UALA00833

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 7, 2002
- Submitted: May 22, 2002
- Operation: Air carrier
- Aircraft: N395UA
- Make and model: Boeing 737322
- Aircraft serial: 24670
- Aircraft time: 35,155 hours, 24,829 cycles
- Engine: Ge CFM56*
- System (JASC): [3160 · Central Display](https://openairdocs.org/jasc/3160)
- Part: Symbol Generator
- Part number: 6229436101
- Condition: Failed
- Location: E/E Bay
- Stage of operation: TO
- How discovered: O
- Nature of condition: I
- Precautionary procedure: C
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2002UALA00833

## Discrepancy

ABORTED TAKEOFF AT 100 KNOTS AFTER CAPTAINS ELECTRONIC ATTITUDE DIRECTION INDICATOR WENT BLANK.  MAINTENANCE CONDUCTED AN EFIS BITE TEST VIA THE DFCS, RESULTING THE REPLACEMENT OF THE NR 1 SYMBOL GENERATOR MR41824-281.  COMPONENT SHOP FOUND THAT THE UNIT HAD A CONFIRMED FAILURE OF THE A8U36 EEPROM DEVICE.  ADDITIONAL DEVICES REPLACED AS A PRECAUTION.

---
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.