# SDR SWAA2022092645582

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 24, 2022
- Submitted: September 26, 2022
- Operation: Air carrier
- Aircraft: N496WN
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 32478
- Aircraft time: 59,797 hours, 35,569 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Intercostal
- 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/SWAA2022092645582

## Discrepancy

FWD WET AREA INTERCOSTAL BETWEEN STA 294.5 TO STA 312 LBL 11 HAS CORROSION / [01] CLEANED CORROSION AS PER B737-700 SRM 51-10-02-0G-0;[02] VOID STEP 1.;[03] LOSE CABLE FROM THE ELEVATOR ( EA / SECTION) TO FACILITATE SHEET METAL WORK AS PER B737-700 AMM 20-10-91-000-801.;[04] FOUND EXFOLIATED CORROSION AND IS OUT OF LIMITS AS PER B737-700 SRM 53-00-04-1A-1. REMOVED INTER COSTAL AS PER B 737-700 SRM 51-40-02-0G;[05] VERIFIED STEP 3 AND 4;[06] LOCATED AND DRILLED NEW INTERCOSTAL AS PER B737-700 SRM 51-40-05-0G-0;[07] VERIFIED STEP 6;[08] OK TO TREAT AND PRIME.;[09] TREATED AND PRIMED AS PER B737-700 AMM 51-21-72-370-801;[10] VERIFIED STEP 9.;[11] OK TO INSTALL NEW INTERCOSTAL.;[12] (CORECTION TO STEPS 5 AND 7)<BR>(RII) VERIFIED STEPS 3; 4 AND 6.;[13] PARTIALLY INSTALLED NEW INTERCOSTAL AS PER B737-700 SRM 51-40-02-0G-0;[14] INSTALLED INTRCOSTAL BETWEEN STA 294.5 TO STA 312 AND LBL 11 AS PER B737-7 SRM 51-40-02-0G-0;[15] VERIFIED STEP 14;[16] REF STEP 3 ADJUSTED CABLE FROM THE ELEVATOR ( EA / SECTION) WORK ACCOMPLISHED ON TTG8Q0038ZYV;[17] VERIFIED 16

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain, except the copies of manufacturers’ service documents, which belong to their rights holders.