# SDR SWAA2022042088230

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 25, 2022
- Submitted: April 20, 2022
- Operation: Air carrier
- Aircraft: [N8628A](https://openairdocs.org/aircraft/N8628A), registered now
- Make and model: Boeing 737-8H4
- Registry model: [Boeing 737-8H4](https://openairdocs.org/model/boeing-737-8h4) (OpenAirDocs)
- Aircraft serial: 42384
- Aircraft time: 27,196 hours, 12,448 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Floorbeam
- Part number: 141A55052
- Condition: Corroded
- 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/SWAA2022042088230

## Discrepancy

CORROSION ON 344 FLOORBEAM FWD UPPER FLANGE AT RBL 1; WL 208. / [01] REMOVED CORROSION ON 344 FLOORBEAM; FWD UPPER FLANGE AT RBL 1; WL 208 PER SRM 51-10-02-0G-0. AREA BLENDED IS 1.7' BY 1.2' PER SRM 51-10-02-0G-0.;[02] VERIFIED CORRECTIVE ACTION STEP 1 TO BE COMPLETED;[03] UT THICKNESS TESTED BLENDED AREA PER 737NDT PART 4 51-00-00 PROCEDURE 2. LOWEST REMAINING THICKNESS IS .147' NEAR AFT EDGE OF HOLE. ADJACENT THICKNESS IS .175'.;[04] MAX MATERIAL REMOVED WAS .028' FROM .175'. OUT OF LIMITS PER SRM 53-10-51-1A-1>ACCOMPLISHED 10X INSPECTION OF REWORKED AREA AND DVI. NO OTHER FAULTS NOTED.;[08] LOCATED; DRILLED; AND TRIMMED -1 STRAP FROM .100' 7075T6 CLAD LOT# 1456801-1; AND APPLIED CHEMICAL CONVERSION COATING TO -1 STRAP AND BARE METAL IN REPAIR AREA PER SRM 53-10-51-2R-8.;[09] VERIFIED CORRECTIVE ACTION 8.;[10] PRIMED -1 STRAP AND BARE METAL IN REPAIR AREA PER SRM 53-10-51-2R-8. OK TO INSTALL REPAIR.;[11] INSTALLED REPAIR PER SRM 53-10-51-2R-8.;[12] VERIFIED CORRECTIVE ACTION 10. <BR><BR>OK TO INSTALL WAS GIVEN PRIOR TO INSTALLATION REPAIR INSTALLED. <BR><BR>FILL OF BLEND AREA STILL REQUIRED.;[14] FILLED BLEND AREA PER SRM 53-10-51-2R-8 STEP 4.L.;[15] VERIFIED CORRECTIVE ACTION 14. BLEND AREA FILLED.

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