# SDR SWAA2026072790568

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 11, 2026
- Submitted: July 28, 2026
- Operation: Air carrier
- Aircraft: [N8647A](https://openairdocs.org/aircraft/N8647A), registered now
- Make and model: Boeing 737-8H4
- Registry model: [Boeing 737-8H4](https://openairdocs.org/model/boeing-737-8h4) (OpenAirDocs)
- Aircraft serial: 42528
- Aircraft time: 39,657 hours, 19,343 cycles
- System (JASC): [3397 · Light System Wiring](https://openairdocs.org/jasc/3397)
- Part: Wire
- Condition: Open
- Location: Zone 200
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SWAA2026072790568

## Discrepancy

L1187 EXIT INDICATOR LIGHT IS INOPERATIVE.   PERFORMED CONTINUITY CHECK AND FOUND OPEN LINE AT WIRE W4142-0152-20 IAW WDM 33-51-21 PG 34 SH1. RETERMINATED WIRE W4142-0152-20 INTO GROUND BLOCK IAW SWPM20-90-15 AND WDM DWG. 33-51-21. PERFORMED GOOD TEST.

---
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.