# SDR SWAA2022072723923

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 28, 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: R/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/SWAA2022072723923

## Discrepancy

R/H HORIZONTAL STABILIZER RIB #4 STIFFENER #4 LOWER FLANGE WITH A CRACK. / [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;[02] CUTOUT THE DAMAGE AREA AT RH HORIZONTAL STAB RIB #4 STIFFENER #4 SRM 55-10-09-2R-4;[03] VERIFIED STEP1 AND 2;[04] PERFORMED HFEC AT CUT OUT AS PER NDTM PART 6; 51-00-00 PROCEDURE 23. NO CRACKS<BR>[NORTEC 600 ; B/C 166316 ; CALIB.DUE- 10/22];[05] LOCATED NEW REPAIR PARTS AND DRILLED NEW HOLES SRM 51-40-05-0G-0;[06] VERIFIED STEP 5.<BR>VERIFIED NICKS; SCRATCHES; GOUGES; BURRS AND SHARP EDGES REMOVED.<BR>OK TO TREAT AND PRIME.;[07] TREATED AND PRIME AREA REPAIRS AND NEW HOLES AMM 51-21-72-370-804 AND 51-21-41-370-802;[08] VERIFIED STEP 7.<BR>OK TO INSTALL REPAIR.;[09] INSTALLED REPAIR PARTS. AT RH HORIZONTAL STAB RIB #4 SRM 55-10-09-2R-4;[10] VERIFIED STEP 9.;[11] APPLIED FILLET SEAL AT RH HORIZONTAL STAB RIB #4 TO THE REPAIR PARTS.<BR>REF. B737-700. SRM-55-10-09-2R-4. STEP 4/Q.;[12] VERIFIED STEP # 11;[13] JOB IS COMPLETE;[14] JOB IS COMPLETE

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