# SDR SWAA2022101045295

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 1, 2022
- Submitted: October 10, 2022
- Operation: Air carrier
- Aircraft: [N952WN](https://openairdocs.org/aircraft/N952WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 36667
- Aircraft time: 39,061 hours, 23,816 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Support Angle
- Condition: Corroded
- Location: Fwd Cargo Bay
- 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/SWAA2022101045295

## Discrepancy

CORROSION ON FCB AFT BULKHEAD TO FLOOR SUPPORT ANGLE BS500D LBL23 - RBL20. / [01] VERIFIED APPLICABILITY SRM 53-30-08-01-1 FOR IDENTIFICATION AND SRM 53-30-08-1A-1 FOR ALLOWABLE DAMAGE.<BR><BR>REMOVED CORROSION ON FCB AFT BULKHEAD TO FLOOR SUPPORT ANGLE BS500D LBL18 IAW SRM 51-10-02; DEEPEST AREA EVALUATED AS FOLLOW: L=2' W= 1' ORIGINAL THICKNESS 0.071' PER BAC1517-2818 ; REMAINING THICKNESS 0.064' ; MAT LOSS 0.007'; FOUND TO BE WITHIN LIMITS IAW SRM 53-30-08-1A-1 STEP 4 A (2) FIGURE 103 DETAIL D.<BR><BR>TOOL ID: ATS1672 SN: 65092939 DATE DUE: 03/2023.<BR><BR>OK TO CHEMICAL CONVERSION COATING AND PRIMER.;[02] VERIFIED CORRECTIVE ACTION STEP 1. VERIFIED OK TO APPLY CHEMICAL CONVERSION COATING AND PRIMER.;[03] APPLIED CHEMICAL CONVERSION COATING AND PRIMER AT DISCREPANCY AREA PER SRM 53-30-08-1A-1 PARAGRAPH 2.F.(1)(2);[04] VERIFIED CORRECTIVE ACTION #3<BR>MEASUREMENT TABLE VERIFIED

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