# SDR SWAA2023082489571

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 14, 2023
- Submitted: August 24, 2023
- Operation: Air carrier
- Aircraft: N413WN
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 29819
- Aircraft time: 72,820 hours, 42,792 cycles
- System (JASC): [5510 · Horizontal Stabilizer Structure](https://openairdocs.org/jasc/5510)
- Part: Stiffener
- Part number: UNKNOWN
- Condition: Cracked
- Location: Zn 300 Stabilize
- 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/SWAA2023082489571

## Discrepancy

REJECTED: L/H H-STAB RIB #7 STIFFENER #4 UPPER RADIUS CRACKED: SRM APPLICABILITY VALIDATION FOR REPAIR; AND NDT/VISUAL INSPECTIONS NOT PERFORMED AFTER DAMAGE REMOVAL.<[01] L/H H-STAB RIB #7 STIFFENER #4 UPPER RADIUS CRACKED: ACCOMPLISHED ON COSTUMER CARD TTG8Q00MP7C6:<BR>-SRM APPLICABILITY ON STEP 4.<BR>-NDT PERFORMED ON STEP 3.<BR>-GVI PERFORMED ON STEP 8.;[02] VERIFIED CORRECTIVE ACTION 1

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