# SDR SWAA2021091410885

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 23, 2021
- Submitted: September 14, 2021
- Operation: Air carrier
- Aircraft: [N912WN](https://openairdocs.org/aircraft/N912WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 36621
- Aircraft time: 45,236 hours, 27,137 cycles
- System (JASC): [5312 · Fuselage Main, Bulkhead](https://openairdocs.org/jasc/5312)
- Part: Angle
- Condition: Elongated
- Location: Bulkhead Web
- 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/SWAA2021091410885

## Discrepancy

RIGHT VAPOR BARRIER WEB UPPER ANGLE HAS 12 HOLES THAT ARE ELONGATED ; / [01] PERFORMED HFEC ROTO INSP ON ELONGATED EXISTING FASTENER HOLES IAW B737 NDT PART 6; 51-00-00; PROCEDURE 16. NO CRACKS NOTED<BR>TOOL: NORTEC 600 B/C: 166317 DUE:10/12/2021<BR>TOOL: OLYMPUS MINIMITE B/C: 160006 DUE: 01/18/2022; [02] REAMED HOLES#1;2;3;4;5;6;7 AND 9 TO SIZE 0.191-0.202 AT R/H UPPER ATTACH ANGLE STA 663 IAW EA# 21-157-02522-WIP1; [03] REAMED HOLE#8;11 AND 12 TO SIZE 0.221-0.233 AT R/H UPPER ATTACH ANGLE STA 663 IWA EA#21-157-02522-WIP1 FG.1-1 SHEET 3; [04] REAMED HOLE #10 TO SIZE 0.254-0.265 AT R/H UPPER ATTACH ANGLE STA 663 IWA EA#21-157-02522-WIP1 FG.1-1 SHEET 3; [05] VERIFIED STEPS 2; 3 AND 4.; [06] INSTALLATION OF FASTENER AT REPAIRED ELONGATED HOLES ACCOMPLISHED ON CARD EA. 21-157-02522-WIP1; BARCODE:TTG8Q006AUES.; [07] VERIFIED STEP 6; [08] VERIFIED STEP 6

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