# SDR SWAA2021062874834

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 20, 2021
- Submitted: June 28, 2021
- Operation: Air carrier
- Aircraft: [N207WN](https://openairdocs.org/aircraft/N207WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 34012
- Aircraft time: 52,378 hours, 31,227 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Shield
- Condition: Corroded
- Location: Bs 420
- 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/SWAA2021062874834

## Discrepancy

CORROSION FCB FWD SHIELD RBL24.75; BS420+15.75'; WL157 ; / [01] EVALUATED FCB FWD SHIELD RBL 23; BS 420+15.75; WL 157; AND NO FOUND ALLOWABLE DAMAGE ON SRM 53-30-15-1A-1; PART CALLED REPAIRABLE BY REPLACEMENT IAW SRM 51-10-02-0G-0 PART 9C; L=0.801'' X W=0.215'' X D=0.012''; TOOL USED CALIPER P/N 505-675(ISOOO887) S/N 05946723; DEPTH GAUGE P/N 643JZ(ATS401); [02] REMOVED FCB FWD SHIELD RBL 23; BS 420 TO BS 440 WL 157 IAW SRM 51-40-020G-0; [03] FCB FWD SHIELD RBL 24.75; BS 420+15.75; WL 157; [04] EVALUATED FCB FWD SHIELD RBL 24.75; BS 420+15.75; WL 157; AND NO FOUND ALLOWABLE DAMAGE ON SRM 53-30-15-1A-1; PART CALLED REPAIRABLE BY REPLACEMENT IAW SRM 51-10-02-0G-0 PART 9C; L=0.801'' X W=0.215'' X D=0.012''; TOOL USED CALIPER P/N 505-675(ISOOO887) S/N 05946723; DEPTH GAUGE P/N 643JZ(ATS401); [05] VERIFIED EVALUATION OF FCB FWD SHIELD RBL 24.75; BS 420+15.75; WL 157; AND FOUND NO ALLOWABLE DAMAGE IN SRM 53-30-15-1A-1; PART REPAIRABLE BY REPLACEMENT IAW SRM 51-10-02-0G-0 PART 9C; L=0.801'' X W=0.215'' X D=0.012''; TOOL USED CALIPER P/N 505-675(ISOOO887) S/N 05946723; DEPTH GAUGE P/N 643JZ(ATS401); [06] THIS JOB CARD WILL BE ACCOMPLISHED WITH THE CUSTOMER CARD#TTG8Q0054DK2.; [07] REMOVE AND REPLACE FCB FWD SHIELD CARD WILL BE ACCOMPLISHED WITH THE CUSTOMER CARD#TTG8Q0054DK2; [08] VERIFIED REMOVAL AND REPLACEMENT WILL BE ACCOMPLISHED ON CUSTOMER CARD TTG8Q0054DK2. CARD COMPLETE

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