# SDR SWAA2023101912434

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 6, 2023
- Submitted: October 19, 2023
- Operation: Air carrier
- Aircraft: [N8674B](https://openairdocs.org/aircraft/N8674B), registered now
- Make and model: Boeing 737-8H4
- Registry model: [Boeing 737-8H4](https://openairdocs.org/model/boeing-737-8h4) (OpenAirDocs)
- Aircraft serial: 36734
- Aircraft time: 26,522 hours, 12,730 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery Pack
- Part number: UNKNOWN
- Condition: Inoperative
- Location: Zn 200 Fus Top
- 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/SWAA2023101912434

## Discrepancy

SEVERAL EMERGENCY BULLNOSE LIGHTS INOP IN CABIN.<[01] REPLACED 4 BATTERY PACKS. 2 FWD LEFT AND RIGHT AND 2 AFT LEFT AND RIGHT. OPS CHECK GOOD. REF AMM 33-51-06.;[02] REPLACED 4 BATTERY PACKS. 2 FWD LEFT AND RIGHT AND 2 AFT LEFT AND RIGHT. OPS CHECK GOOD. REF AMM 33-51-06.;[03] CORRECTIVE ACTIONS 1 AND 2 ENTERED IN ERROR. INCORRECT SIGN OFF.;[04] REPLACED 4 BATTERY PACKS. 2 FWD LEFT AND RIGHT AND 2 AFT LEFT AND RIGHT. REF AMM 33-51-06.;[05] VERIFIED SIGNOFF 1&2 CLOSED IN ERROR. CORRECTIVE ACTIONS 1 AND 2 ENTERED IN ERROR. INCORRECT SIGN OFF.<BR>REPLACED 4 BATTERY PACKS. 2 FWD LEFT AND RIGHT AND 2 AFT LEFT AND RIGHT. REF AMM 33-51-06.C/W INSPECTION;[06] REMOVED AND REPLACED 5 EACH EMERGENCY LIGHT BATTERY PACKS PER MM 33-51-06. OPS CHECKS GOOD PER MM 33-51-00;[07] INSPECTED WORK PERFORMED. SEE STEPS AND C/A?S FOR ALL WORK PERFORMED. REMOVED AND REPLACED 5 EACH EMERGENCY LIGHT BATTERY PACKS PER MM 33-51-06. OPS CHECKS GOOD PER MM 33-51-00

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