# SDR SWAA2023082487750

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 9, 2023
- Submitted: August 24, 2023
- Operation: Air carrier
- Aircraft: N420WN
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 29825
- Aircraft time: 72,005 hours, 42,658 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Panel
- Part number: UNKNOWN
- Condition: Cracked
- Location: Zn 100 Fus Lower
- 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/SWAA2023082487750

## Discrepancy

AREA ABOVE WING BOX CENTER SECTION HAS A CRACKED BREAK PANEL I/B OF FASTENER; BS 540; RBL 1; WL 207<[01] UPDATED MEASUREMENT TABLE.;[02] COMPLETED STEPS 1 AND 2. PARTIAL UPDATED STEP 3.;[03] CONMPLETED STEP 3.;[04] REPLACED PANEL BREAK AT BS 540 RBL 1 PER SRM 51-40-02; 51-40-05; AND DWG #143A5240. FAULT COMPLETE.;[05] UPDATED PARTS AND REFERENCE. FAULT COMPLETE.;[06] VERIFIED MEASUREMENT TABLE.<BR>VERIFIED CORRECTIVE ACTIONS 1-5 COMPLETE. CARD COMPLETE.

---
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.