# SDR SWAA2024030748448

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 3, 2024
- Submitted: March 7, 2024
- Operation: Air carrier
- Aircraft: [N926WN](https://openairdocs.org/aircraft/N926WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 36629
- Aircraft time: 51,481 hours, 31,307 cycles
- System (JASC): [5510 · Horizontal Stabilizer Structure](https://openairdocs.org/jasc/5510)
- Part: Stiffener
- Part number: UNKNOWN
- Condition: Cracked
- Location: Horizontal Stab
- 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/SWAA2024030748448

## Discrepancy

L/H HORIZONTAL STAB INTERNAL SURFACE RIB #5 STIFFENER#2 CRACKED.<[01] REMOVED DAMAGED PART OF STIFFENER#2 AT RIB#5;VERIFIED CUT EDGES OF INITIAL PARTS SURFACE ROUGHNESS OF 63 MICROINCHES RA REF SRM 55-10-09-2R-4 TOOL USED B/C 172329 NO DUE DATE; LOCATED AND DRILLED ALL REPAIR PARTS REF SRM 55-10-09-2R-4; INSTALLED REPAIR PARTS (T-SECTION; ANGLE AND SHIMS) PER REF. SRM 55-10-09-2R-4;[02] RII / VERIFIED ENTRY #1 AS WORK PERFORMED AS STATED AT RIB#5 ; STIFFENER #2.

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