# SDR SWAA2022061401321

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 30, 2022
- Submitted: June 14, 2022
- Operation: Air carrier
- Aircraft: [N286WN](https://openairdocs.org/aircraft/N286WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 32471
- Aircraft time: 57,746 hours, 34,276 cycles
- System (JASC): [5742 · Wing, Nacelle/Pylon Attach Fittings](https://openairdocs.org/jasc/5742)
- Part: Slat
- Condition: Cracked
- Location: R/H 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/SWAA2022061401321

## Discrepancy

RT WING #6 SLAT LWR SURFACE HAS A CRACK AT AFT FASTENER SLAT STA 202.45. 8-8 / [01] PERFORMED HFEC AT SUSPECTED CRACK IAW NDTM PART 6; 51-00-00 PROCEDURE 23. CRACK CONFIRMED AT AFT FASTENER. CRACK LENGTH:0.984'<BR>[NORTEC 600 ; B/C 166317 ; CALIB.DUE-10/22];04] PERFORMED ROTO INSP. ON EXISTING HOLES IN REPAIR AREA R/T WING #6 SLAT LWR SURFACE @ AFT FASTENER SLAT STA 202.45 IAW B737 NDT PART 6 51-00-00 PROC. 16. INITIAL SLAT CRACK FOUND THROUGH HOLE FASTENER AND ADDITINAL CRACK FOUND 2 FASTENERS HOLES O/B. EQUIP: NORTEC 600 B/C 166316 CAL DUE 10/22;[06] CUT-OUT DAMAGE AREA AT R/W. #6 SLAT AS PER B-737-700 SRM. 57-42-01-2R-8 F. [1] FIGURE 202 SHEET 3;[07] ROUGHNESS SURFACE SMOOTHER THEN 63 MICRO INCHES RA. AS PER B-737-700 SRM. 57-42-01-2R-8 F. [1] B TOOL USED B/C 172331;[08] FABRICATED REPAIR PARTS; FILLER FROM 7075-T6 0.063' AND DOUBLER FROM 7075-T6 0.071'; REF B737 SRM 57-42-01-2R-8 FIG 20214] INSTALLED REPAIR PART AT R/W. SLAT #6 LOWER SURFACE AS PER B-737-700 SRM. 57-42-01-2R-8 & B-737-700 SRM. 51-40-02-0G-0;[17] INSTALLED ACCESS PANELS #623CB; 623DB; 623EB; AND FLEX SKIN PANEL AS PER B-737-700 SRM.51-40-02-0;[18] ACCOMPLISHED PERMANENT REPAIR AT R/W. SLAT #6 AS PER B-737-700 SRM. 57-42-01-2R-8;[19] VERIFIED STEPS 17 AND 18.

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