# SDR FDEA202604300529

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 30, 2026
- Submitted: May 1, 2026
- Operation: Air carrier
- Aircraft: [N730FD](https://openairdocs.org/aircraft/N730FD), registered now
- Make and model: Airbus A300 B4-622R
- Registry model: [Airbus A300 B4-622R](https://openairdocs.org/model/airbus-a300-b4-622r) (OpenAirDocs)
- Aircraft serial: 659
- Aircraft time: 50,408 hours, 27,422 cycles
- System (JASC): [5270 · Door Warning System](https://openairdocs.org/jasc/5270)
- Part: Power Supply
- Part number: 321490
- Part serial: 0257
- Condition: Inoperative
- Location: Zone 800
- Stage of operation: CR
- How discovered: O
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/FDEA202604300529

## Discrepancy

DURING CRUISE, THE L1  SLIDE ARMED WARNING BUZZER  STARTED GOING OFF WITH THE SLIDE LIGHT FLASHING.  WE PUSHED THE INTERIOR DOOR CONTROL HANDLE AND  CHECKED THE LOCKING INDICATIONS WITH NO SUCCESS IN  DEACTIVATING THE BUZZER.  ALL DOOR AND SLIDE  INDICATORS ON ECAM SHOW NORMAL.    PERFORMED TEST ON POWER SUPPLY FAULTS NR 2 BATTERY.   ORDERED 2 BATTERYS AND CHARGER IAW AMM 52-73-00-05-01.  R & R AUTONOMOUS STANDBY POWER SUPPLY UNIT 70WN IAW AMM 52-73-18-04. OPS CKS GOOD.

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