# SDR SWAA2021091598002

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 24, 2021
- Submitted: September 15, 2021
- Operation: Air carrier
- Aircraft: [N447WN](https://openairdocs.org/aircraft/N447WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 33720
- Aircraft time: 58,733 hours, 34,620 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Panel
- Condition: Delaminated
- Location: Fuselage
- 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/SWAA2021091598002

## Discrepancy

PANEL 194CR OUTER SURFACE DELAMINATION; 14' FROM I/B END; 8.25' FROM FWD EDGE ; / [01] PART/MATERIAL IDENTIFIED IAW SRM 53-60-70-0I-1 FIG 2 TABLE 2 ITEM 6 .<BR>7/16 DIA DELAMINATION EXCEEDS THE ALLOWABLE LIMITS AS GIVEN IN SRM 53-60-70-1A-1 PARA 4 A (6) .<BR>REPAIR TO BE PERFORMED IAW SRM 51-70-05-2R-2 AS GIVEN IN SRM 53-60-70-2R-1 PARA 4 D REF TABLE 201; [02] VALIDATED REPAIR PER SRM 51-70-05-2R-2; [03] PERFORMED DAMAGE REMOVAL & SURFACE PREPARATION STEPS IAW SRM 51-70-05-2R-2 PARA 4 STEPS A ; B ; & C .; [04] APPLIED AN ALTERNATIVE CORE REPAIR AS GIVEN IN SRM 51-70-05-2R-11 PARA 4 STEPS A-D REF CURE IAW SRM 51-70-04-2R-0 TABLE 204 ;6 HOUR AT ROOM TEMP. PER SRM 51-70-05-2R-2 PARA 4 D; [05] BMS 8-78 STYLE 120 GLASS LOT 1454844-1 & BMS 5-129 GR5 ADHESIVE LOT 1457270-4. FABRICATED REPAIR PLIES .<BR>LAID UP THE REPAIR ;VACUUM BAGGED ;LEAK CHECKED & SET TO CURE IAW SRM 51-70-05-2R-2 PARA 4 STEPS F G & H; [06] USING CALL TOOL HOT BONDER ID NCX000526 SN 12051216 .<BR>CURED THEN EXAMINED THE REPAIR IAW SRM 51-70-05-2R-2<BR>PARA 4 STEP I .; [07] REJECT- REPAIR TO 194CR OUTER SURFACE 14' FROM I/B END 8.25' FROM FWD EDGE WAS ACCOMPLISHED WITHOUT QC DAMAGE REMOVAL VERIFICATION<BR>GENERATED FAULT TTG8Q005Z3UY; [08] NO FURTHER UPDATES REQUIRED FOR THIS FAULT; INITIAL REPAIR REJECTED AND WILL BE REMOVED AND REPAIRED ON FAULT TTG8Q005Z3UY.; [09] VERIFIED THIS FAULT WILL BE ACCOMPLISHED ON FAULT TTG8Q005Z3UY

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