# SDR SWAA2023121329584
- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 8, 2023
- Submitted: December 13, 2023
- Operation: Air carrier
- Aircraft: N233LV
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 32501
- Aircraft time: 59,250 hours, 35,411 cycles
- System (JASC): [3350 ยท 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/SWAA2023121329584
## Discrepancy
MULTIPLE EMERGENCY LIGHT INOP EMERGENCY LIGTHS STA 603 LH & RH; STA 727 L/H; STA 952 LH & RH INOPS<[01] PERFORMED EMERGENCY LIGHTING PROBLEM AS PER REF FIM 33-50 TASK 801 FINDING THE FOLLOWING POWER SUPPLY BATTERY PACKS DEFECTIVE IN POSITION:
M1668 BATTERY PACK STA 603 LEFT
M1669 BATTERY PACK STA 603 RIGHT
M1670 BATTERY PACK STA 727C LEFT
M1672 BATTERY PACK STA 952 RIGHT
M1673 BATTERY PACK STA 952 LEFT
PERFORMED REPLACEMENT OF DEFECTIVE POWER SUPPLY BATTERY PACKS AS PER REF AMM 33-51-06-960-805. TEST FOUND NORMAL.;[02] PERFORMED EMERGENCY LIGHTING PROBLEM AS PER REF FIM 33-50 TASK 801 FINDING THE FOLLOWING POWER SUPPLY BATTERY PACKS DEFECTIVE IN POSITION:
M1668 BATTERY PACK STA 603 LEFT
M1669 BATTERY PACK STA 603 RIGHT
M1670 BATTERY PACK STA 727C LEFT
M1672 BATTERY PACK STA 952 RIGHT
M1673 BATTERY PACK STA 952 LEFT
PERFORMED REPLACEMENT OF DEFECTIVE POWER SUPPLY BATTERY PACKS AT POSITION M1668; M1669; M1670; M1672 AND M1673 AS PER REF AMM 33-51-06-960-805. TEST FOUND NORMAL.;[03] VERIFIED STEP 2.
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