# SDR SWAA2021061672374

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 12, 2021
- Submitted: June 16, 2021
- Operation: Air carrier
- Aircraft: N732SW
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 27864
- Aircraft time: 74,727 hours, 43,976 cycles
- System (JASC): [5340 · Fuselage Main, Attach Fittings](https://openairdocs.org/jasc/5340)
- Part: Attach Angle
- Condition: Corroded
- Location: Bs 727d Rbl 6
- 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/SWAA2021061672374

## Discrepancy

CORROSION ON ATTACH ANGLE AT AFT CARGO BAY BS727D+10 RBL6 WL151. ; / PRIMERED ATTACH ANGLE PER SRM 51-21-72-370-804; OK TO INSTALL.;REMOVED ATTACH ANGLE IN ACB BS727D+10 RBL6 WL151 IAW SRM 51-40-02.;REFERENCE ESR: 21-01944; FABRICATED ATTACH ANGLE BS 727D+ 10 RBL6 WL151; USING BAC1493-672#7075-T62; LOT #1370754-1 PER SRM 51-40-05-0G-0; DWG 146A7734; DWG 146A7730; APPLIED A CHEMICAL CONVERSION COATING PER AMM 51-21-41-370-802.;VERIFIED MEASUREMENT TABLE; ATTACH ANGLE FOUND TO BE OUT OF LIMITS AND REPLACEMENT PART PER SRM 51-10-02-0G;CORRECTION TO STEP 7; SHOULD BE AMM NOT SRM.;EVALUATED CORROSION ON ATTACH ANGLE BS727D+10 RBL6 WL151 FOUND TO BE OUT OF LIMITS DUE TO NO ALLOWABLE LIMITS IN THE SRM AND REQUIRES REPLACEMENT PER SRM 51-10-02-0G-0;INSTALLED ATTACH ANGLE BS 727D + 10 RBL6 WL 151 PER SRM 51-40-02-0G-0; DWG 146A7730.;REMOVED ENGINEERING ROW DUE TO ENGINEERING NOT REQUIRED;UPDATED MEASUREMENT TABLE;VERIFIED PRIMERED ATTACH ANGLE PER AMM 51-21-72-370-804; OK TO INSTALL.;VERIFIED INSTALL OF ATTACH ANGLE BS 727D + 10 RBL6 WL 151 PER SRM 51-40-02-0G-0; DWG 146A7730.;VERIFIED STEP 5.

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