# SDR SWAA2023100697968

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 7, 2023
- Submitted: October 6, 2023
- Operation: Air carrier
- Aircraft: [N7751A](https://openairdocs.org/aircraft/N7751A), registered now
- Make and model: Boeing 737-7BD
- Registry model: [Boeing 737-7BD](https://openairdocs.org/model/boeing-737-7bd) (OpenAirDocs)
- Aircraft serial: 36717
- Aircraft time: 49,352 hours, 25,598 cycles
- System (JASC): [5512 · Horizontal Stabilizer, Plate/Skin](https://openairdocs.org/jasc/5512)
- Part: Skin Panel
- 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/SWAA2023100697968

## Discrepancy

CRACK INDICATION FOUND ON RT HORIZONTAL STABILIZER LOWER SKIN PANEL. LOCATED AT STAB STA 193.9 RIB AND 16 INCH. FROM FRONT SPAR. INBOARD SIDE OF RIB. CRACK LENGTH = 1.000 INCH. APPROX. 2023-575222<[01] TOOL USED EDDY CURRENT EQUIPMENT P/N: NORTEC 500D; S/N: 00X12101V022237; CAL DUE DATE: 26-JAN-24;[02] REPAIRED HORIZONTAL STABILIZER LOWER SKIN PANEL. LOCATED AT STAB STA 193.9 IAW B737-700 55-10-01-2R-11 REPAIR 11 FIG 204 SHEET 2; TABLE 201;[03] REPAIRED HORIZONTAL STABILIZER LOWER SKIN PANEL. LOCATED AT STAB STA 193.9 IAW B737-700 SRM 55-10-01-2R-11 REPAIR 11 FIG 204 SHEET 2; TABLE 201;[04] CORRECTED STEP 2 AND 3 <BR>REPAIRED HORIZONTAL STABILIZER LOWER SKIN PANEL. LOCATED AT STAB STA 193.9 IAW B737-700 SRM 55-10-01-2R-11 REPAIR 11 FIG 204 SHEET 2; TABLE 201 <BR>SEE INDIVIDUAL SIGNOFF BELOW;[05] CERTIFIED STEP 4 COMPLETED <BR>RII

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