# SDR SWAA2022071418664

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 14, 2022
- Submitted: July 14, 2022
- Operation: Air carrier
- Aircraft: [N488WN](https://openairdocs.org/aircraft/N488WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 33853
- Aircraft time: 59,468 hours, 35,169 cycles
- System (JASC): [5315 · Fuselage Main, Floor Beam](https://openairdocs.org/jasc/5315)
- Part: Floorbeam
- Condition: Corroded
- Location: Fuselage
- 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/SWAA2022071418664

## Discrepancy

CORROSION ON PASSENGER CABIN FLOORBEAM AT LBL 12 BS 312. / [01] REMOVED CORROSION ON PASSENGER CABIN FLOORBEAM AT LBL 12 BS 312 AREA REWORKED: L: 4' W: 2.1' ORIGINAL THICKNESS 0.125 MATERIAL REMOVED MORE THAN 50% FOUND TO BE OUT OF LIMIT; IAW SRM 53-10-51-1A-1<BR><BR>TOOL USED ID: ATS2473 CAL DUE: 07/2022<BR>TOOL USED ID: ATS1672 CAL DUE: 03/2023;[22] INSTALLED ALL REPAIR PARTS ON PASSENGER CABIN FLOOR BEAM AT BS 312 LBL 19 - RBL 23 IAW SRM 53-10-51-2R-17 REPAIR 17;[23] VERIFIED CORRECTIVE ACTION STEPS 21 AND 22.;[24] VERIFY STEP 2;3 AND 4;[25] VERIFY STEP 1;[26] APPLIED FILLET SEAL AND CIC TO THE REPAIR AREA IAW SRM 53-10-51-2R-17 REPAIR 17;[27] VERIFIED COMPLETE STEPS 1 - 4.;[28] VERIFIED MEASUREMENT TABLE.<BR>VERIFIED CORRECTIVE ACTION #26.

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