# SDR SWAA2022092765277

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 13, 2022
- Submitted: September 27, 2022
- Operation: Air carrier
- Aircraft: [N489WN](https://openairdocs.org/aircraft/N489WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 33855
- Aircraft time: 57,460 hours, 34,246 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Intercostal
- Condition: Cracked
- 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/SWAA2022092765277

## Discrepancy

INTERCOSTAL AT BL 0; IS CRACKED BS 345 WL 208 / [01] HIDDEN DAMAGE INSPECTION ACCOMPLISHED. NO ADDITIONAL DAMAGE NOTED.;[02] HIDDEN DAMAGE RE-INSPECT REQUIRED UPON REMOVAL OF INTERCOSTAL.;[03] ADDITIONAL DAMAGE FOUND TO T-CHORD AND STRAP UPON REMOVAL OF INTERCOSTAL.;[04] REMOVED INTERCOSTAL BS 344 TO BS 360 BL 0 PER SRM 51-40-02; TRIMMED DAMAGED AREA OF INTERCOSTAL PER SRM 51-10-02; REQUEST NDI TO HFEC TRIMMED EDGE TO VERIFY CRACK FREE CONDITION.;[05] HFEC INSPECTED TRIMMED AREA IAW 737 NDTM PART 6 51-00-00 PROCEDURE 23.<BR>NO CRACKS NOTED.<BR>EQUIP USED:<BR>-NORTEC 600 ID: ATS2353 CAL DUE: 01/23;[06] REQUIRES QC VERIFICATION OF TRIMMED EDGE IN STEP 4;[07] UPDATED CHART;[08] UPDATED CHART;[09] CERTIFY;[10] VERIFIED CORRECTIVE ACTION #4<BR>VERIFIED MEASUREMENTS;[11] OK TO INSTALL INTERCOSTAL FROM BS 344 TO BS360 BL 0.;[12] REJECTED; NO OK TO INSTALL GIVEN; INTERCOSTAL TRIM OUT IN CORRECTIVE ACTION ITEM 4 HAS NOT BEEN REPAIRED YET.;[13] PARTIAL UPDATE FROM STEP 1.;[14] VERIFIED PARTIAL STEP 1; TRIM OUT REPAIRED ON TTG8Q00E9MAJ. OK TO INSTALL INTERCOSTAL.;[15] INSTALLED INTERCOSTAL AT BL 0 BS 344 TO 360 WL 208.1 IAW SRM 51-40-02 AND DWG: 141A5400 ID:0032 REV:- AND EA NO: 22-153-02676 REV:A.;[16] VERIFIED CORRECTIVE ACTION ITEM 15.;[17] CORRECTIVE ACTIO FOR MEASUREMENT #6.;[18] VERIFIED FAULT COMPLETE<BR>VERIFIED CORRECTIVE ACTION ITEM 17 AND MEASUREMENT #6

---
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.