# SDR SWAA2022072723941

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 29, 2022
- Submitted: July 27, 2022
- Operation: Air carrier
- Aircraft: [N7732A](https://openairdocs.org/aircraft/N7732A), registered now
- Make and model: Boeing 737-7BD
- Registry model: [Boeing 737-7BD](https://openairdocs.org/model/boeing-737-7bd) (OpenAirDocs)
- Aircraft serial: 34861
- Aircraft time: 52,541 hours, 28,248 cycles
- System (JASC): [5511 · Horizontal Stabilizer, Spar/Rib](https://openairdocs.org/jasc/5511)
- Part: Stiffener
- Condition: Cracked
- Location: L/H Horiz. 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/SWAA2022072723941

## Discrepancy

L/H HORIZONTAL STABILIZER RIB #5 STIFFENER #2 LOWER FLANGE; WITH A CRACK. STAB. STA-129.50 / [01] PERFORMED HFEC INSP ON RIB STIFFENER LOWER FLANGE IAW B737 NDT P6 51-00-00 PROC.23; CRACK CONFIRMED.<BR>TOOL USED : NORTEC 600 B/C 172389 CALDUE: 03/23;[06] CUT OUT DAMAGED AREA AT L/H HORIZONTAL STAB RIB#5 STIFFENER<BR>#2 LOWER FLNGE STA 129.50 ASPER B737-700 SRM55-10-09-2R-4-A01101 REPAIR #4;[07] PERFORMED HFEC INSP ON CUT OUT AREA IAW B737 NDT P6 51-00-00 PROC.23; NO CRACKS NOTED<BR>TOOL USED : NORTEC 600 B/C 172389 CALDUE: 03/23;[08] FABRICATED REPAIRS PARTS. AT L/H HORIZONTAL STAB RIB #5 STIFFENER #2 AND LOCATED DRILLED NEW HOLES SRM 55-10-09-2R-4 REPAIR 4 AND 51-40-05-0G-0;[09] VERIFIED STEPS 6 AND 8.<BR>OK TO TREAT AND PRIME.;[10] TREATED AND PRIMER NEW REPAIR PARTS AMM 51-21-72-370-804 AND AMM 51-21-41-370-802;[12] INSTALLED REPAIR AT L/H HORIZ STABILIZER RIB #5 STIFFENER#3 SRM 55-10-09-2R-4;

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