# SDR SWAA2021061772821

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 13, 2021
- Submitted: June 17, 2021
- Operation: Air carrier
- Aircraft: N416WN
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 32453
- Aircraft time: 65,393 hours, 38,534 cycles
- System (JASC): [5553 · Vertical Stabilizer, Attach Fittings](https://openairdocs.org/jasc/5553)
- Part: Angle
- Condition: Chafed
- Location: Vertical To Fuse
- 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/SWAA2021061772821

## Discrepancy

LT FWD BS 1008 - 1016 FUSELAGE FIN TO BODY INTERFACE CLOSURE ANGLE HAS CHAFED AREAS. 8-28 ; / CERTIFIED (RII) STEPS #8; #9 AND #10 INSPECTED.;CERTIFIED LT CLOSURE ANGLE INSTALLATION AND 100% FASTENERS INSTALLATION BY SQUEEZE OUT TIME; INSPECTED.;FINAL INSPECTION: LT FWD CLOSURE ANGLE REMOVED AND REPLACED; COMPLETED.;INSTALLED CLOSURE ANGLE AT LT FWD BS 1008 - 1016 FUSELAGE FIN TO BODY INTERFACE PER B737-700 SRM 51-40-02-0G-0 AND DWG 147A0030;LOCATED AND DRILLED NEW ANGLE AT LT FWD BS 1008 - 1016 FUSELAGE FIN TO BODY INTERFACE CLOSURE PER B737-700 SRM 51-40-05-0G-0;MIXED 0870B002BM654SK SEALANT AT 1830 05/20/21 SQUEEZE OUT TIME BY 2030 05/20/21.;OK TO INSTALL NEW LH CLOSURE ANGLE.;OK TO TREAT AND PRIME DRILL HOLES.;REMOVED AND REPLACED CLOSURE ANGLE AT LT FWD BS 1008 - 1016 FUSELAGE FIN TO BODY INTERFACE PER B737-700 SRM 51-40-0-0G-0 AND DWG 147A0030;REMOVED ANGLE AT LT FWD BS 1008 - 1016 FUSELAGE FIN TO BODY INTERFACE CLOSURE PER B737-700 SRM 51-40-02-0G-0;TREATED AND PRIMED DRILLED HOLES ON ANGLE PER B737-700 SRM 51-20-01-0G-0;VERIFIED LT FWD FUSELAGE FIN BS 1008 TO BS 1016 CLOSURE ANGLE REMOVAL (STEP 1).;VERIFIED TREAT AND PRIME; INSPECTED.;VERIFIED AND INSPECTED LOCATED AND DRILL NEW HOLES.

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