# SDR SWAA2022110922141

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 24, 2022
- Submitted: November 9, 2022
- Operation: Air carrier
- Aircraft: [N201LV](https://openairdocs.org/aircraft/N201LV), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 29854
- Aircraft time: 59,586 hours, 35,374 cycles
- System (JASC): [5310 · Fuselage Main, Structure](https://openairdocs.org/jasc/5310)
- Part: Intercostal
- Condition: Corroded
- Location: Zn 100 Fus Lower
- 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/SWAA2022110922141

## Discrepancy

CORROSION ON INTERCOSTAL AT STA 277+5 TO 277+15; LBL 12; WL 208. / [01] CORROSION ON INTERCOSTAL AT STA 277+5 TO 277+15; LBL 12; WL 208 P/N 141A5650-3 AREA OT= 0.070''; RT=0.055'';X=0.015'';L=1.800'' WITH DEPTH GAGE ID:ATS2473<BR>S/N:UNKNOWN<BR>DATE:08/2022<BR>DUE:08/2023<BR>FOUND TO BE OUT LIMITS I.A.W SRM 53-10-51-0L-2 FOR IDENTIFICATION AND SRM 53-10-51-1A-1 FOR ALLOWABLE DAMAGE; IT WILL BE REPAIRABLE BY REPLACEMENT I.A.W SRM 51-10-02-0G PAR 9C .;[02] VERIFIED CORRECTIVE ACTION ITEM 1.;[03] REMOVED INTERCOSTAL FROM BS 277 TO BS 294.4; LBL 12; WL 208 IAW SRM 51-40-02;[04] LOCATED AND DRILLED NEW INTERCOSTAL FROM BS 277 TO BS 294.5 LBL 12; PN#141A5650-3 IAW SRM 51-40-05 AND PER DWG#141A5600.. OK TO INSTALL;[05] INSPECTED ACTION 4; VERIFIED MEASUREMENT TABLE. OK TO INSTAL;[06] INSTALLED INTERCOSTAL FROM BS 277 TO BS 294.5 LBL 12; PN#141A5650-3 IAW SRM 51-40-02 AND PER DWG#141A5600.;[07] INSPECTED ACTION 6;[08] INSPECTION COMPLETE

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