# SDR SWAA2021100509602
- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 20, 2021
- Submitted: October 5, 2021
- Operation: Air carrier
- Aircraft: [N7885A](https://openairdocs.org/aircraft/N7885A), registered now
- Make and model: Boeing 737-76N
- Registry model: [Boeing 737-76N](https://openairdocs.org/model/boeing-737-76n) (OpenAirDocs)
- Aircraft serial: 33379
- Aircraft time: 58,530 hours, 28,804 cycles
- System (JASC): [5511 ยท Horizontal Stabilizer, Spar/Rib](https://openairdocs.org/jasc/5511)
- Part: None
- 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/SWAA2021100509602
## Discrepancy
RH HORIZONTAL STAB RIB #5 STIFFENER #3 HAS A CRACK. ; / [01] REMOVED THE DAMAGED PART FROM R/H HORIZONTAL STAB. RIB#5 STIFFENER #3 AS PER REF SRM 55-10-09-2R-4; [02] VERIFIED STEP 1; DAMAGED REMOVED.; [03] VERIFIED STEP 1; DAMAGED REMOVED.; [04] PERFORMED HFEC INSP. ON WEB OF R/H HORIZONTAL STAB. RIB#5 STIFFENER #3 IAW B737 NDT PART 6; 51-00-00; PROCEDURE 23. CRACK NOTED
TOOL: NORTEC 600 B/C: 172389 DUE: 07/02/2022; [05] PERFORMED HFEC ROTO INSP. ON ALL EXISTING FASTENER HOLES WITHIN THE REPAIR AREA OF R/H HORIZONTAL STAB. RIB#5 STIFFENER #3 IAW B737 NDT PART 6; 51-00-00; PROCEDURE 16. NO CRACKS NOTED
TOOL: NORTEC 600 B/C: 172389 DUE: 07/02/2022
TOOL: OLYMPUS MINIMITE B/C: 160006 DUE: 01/18/2022; [10] VERIFIED. LOCATED AND DRILLED DOUBLE REPAIR PARTS. (RII)
OK TO TREAT/PRIME.; [11] TREATED AND PRIMED PARTS AS PER REF B737-700 SRM 55-10-09-2R-4; [12] MIXED RMS 5-95 SEALANT AT 22:20 08/30/2021 ;SQUEEZE OUT TIME BY 22:20 08/30/2021; [13] VERIFIED. TREATED/PRIMED; MIXED RMS 5-95 SEALANT AT 22:20 08/30/2021 ;SQUEEZE OUT TIME BY 22:20 08/30/2021 (RII); [14] OK TO INSTALL REPAIRED PARTS (RII); [15] INSTALLED REPAIR PARTS AS PER REF B737-700 SRM 55-10-09-2R-4; [16] VERIFIED STEP # 15.
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