# SDR SWAA2022050294358

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 14, 2022
- Submitted: May 2, 2022
- Operation: Air carrier
- Aircraft: [N8321D](https://openairdocs.org/aircraft/N8321D), registered now
- Make and model: Boeing 737-8H4
- Registry model: [Boeing 737-8H4](https://openairdocs.org/model/boeing-737-8h4) (OpenAirDocs)
- Aircraft serial: 36687
- Aircraft time: 31,939 hours, 14,343 cycles
- System (JASC): [5710 · Wing Main, Frame Structure](https://openairdocs.org/jasc/5710)
- Part: Bulkhead
- Condition: Cracked
- Location: Center Wing
- 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/SWAA2022050294358

## Discrepancy

CRACKED LOWER R/H COMPOSITE BULKHEAD AT BS663 RBL35 WL154. / [01] IDENTIFIED PART AND MATERIAL IAW SRM 57-10-10-0I-2FIGURES 1-2; TABLE 2; ITEM [4].<BR>CRACK DAMAGE WAS FOUND TO BE OUT OF ALLOWABLE DAMAGE LIMITS IAW SRM 57-10-10-1A-2 PAR 4.D (1) (A) 1) AND FIGURE 101; SHEET 2.<BR>REPAIR WILL BE ACCOMPLISHED IAW SRM 51-70-04-2R-10 AS DIRECTED PER SRM 57-10-10-2R-2 PAR 1.C 'NOTE'.;[02] DETERMINED EXTENT OF DAMAGE VIA VISUAL METHOD.<BR>REMOVED DAMAGED AND CONTAMINATED FIBERGLASS PLIES FROM DISCREPANT AREA. PREPARED REPAIR AREA FOR REPAIR AND CLEANED.<BR>WORK ACCOMPLISHED IAW SRM 51-70-04-2R-10 PAR 4.A-C.;[03] VALIDATED REPAIR PER SRM 51-70-04-2R-10;[04] VERIFIED ACTION STEPS 1 -3. VERIFIED APPLICABILITY OF SRM 51-70-04-2R-10;[05] FABRICATED REPAIR PLIES USING FIBERGLASS BMS 9-3; TYPE H2; CLASS 7; STYLE 1581; LOT# 1475360-2. <BR>WORK ACCOMPLISHED IAW SRM 51-70-04-2R-10 PAR 4.D. <BR>OK TO INSTALL REPAIR PLIES.;[11] REFINISHED REPAIR AREA IAW SRM 51-70-04-2R-10 PARA 4H.;[12] FINAL INSPECTION. JOB COMPLETE PER SRM 51-70-04-2R-10.;[13] FINAL INSPECTION. JOB COMPLETE PER SRM 51-70-04-2R-10.

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