# SDR SWAA2020052643415

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 16, 2020
- Submitted: May 26, 2020
- Operation: Air carrier
- Aircraft: [N922WN](https://openairdocs.org/aircraft/N922WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 32461
- Aircraft time: 41,140 hours, 24,679 cycles
- System (JASC): [5310 · Fuselage Main, Structure](https://openairdocs.org/jasc/5310)
- Part: Crease Beam
- Condition: Corroded
- Location: Fuselage
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SWAA2020052643415

## Discrepancy

CABIN FLOOR RIGHT CREASE BEAM WEB STA 727D+6' RBL 68.5 WL 208 LOWER SURFACE HAS CORROSION JUST OUTBOARD OF LIGHTNING HOLE. BLENDED CORROSION ON RT CREASE BEAM WEB PN 146A5925-24 AT STA 727D+6' RBL 68.5 WL208.  LOWER SURFACE ORIGINAL THICKNESS .036', LOSS .005', REMAINING .031' FOUND OUT OF LIMITS IAW SRM 53-60-13-1A-1 FIG 103 DETAIL C.  REMOVED, FABRICATED AND INSTALLED NEW WEB IAW SRM 51-40-02-0G-0 AND DRAWING 146A5900.  WEB WAS FORMED AND HEAT TREATED ON WORK ORDER 40849-2700-0001 PN 146A5925-24.

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