# SDR 99ZZZM144

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 10, 1999
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: [N521DB](https://openairdocs.org/aircraft/N521DB), registered now
- Make and model: Boeing 727243
- Aircraft serial: 21266
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery Pack
- Part number: 900542
- Condition: Discharged
- Location: Cabin
- Stage of operation: IN
- Nature of condition: L
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/99ZZZM144

## Discrepancy

FLT 441 MIA - VARIOUS EMERGENCY EXIT LIGHTS IN CABIN INOPERATIVE.  REMOVED AND REPLACED VARIOUS EMERGENCY EXIT LIGHT POWER SUPPLIES, FOUR BATTERY PACKS.

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