# SDR SWAA2023081076097

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 6, 2023
- Submitted: August 10, 2023
- Operation: Air carrier
- Aircraft: [N965WN](https://openairdocs.org/aircraft/N965WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 36677
- Aircraft time: 38,362 hours, 23,630 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Intercostal
- Part number: UNKNOWN
- Condition: Cracked
- 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/SWAA2023081076097

## Discrepancy

CRACKED INTERCOSTAL AT FWD CABIN BS344+5 RBL50 WL208.<[01] REQUEST HFEC INSPECTION OF SUSPECTED CRACK AREA.;[02] HFEC INSPECTED SUSPECTED CRACK AREA IAW 737 NDTM PART 6; 51-00-00 PROCEDURE 23.<BR>.3' CRACK NOTED. MARKED LOCATION<BR>EQUIP USED:<BR>-NORTEC 600 ID: ATS1465 CAL DUE: 09/23;[03] UPDATED MEASUREMENT TABLE.<BR>INSTALLED EWIS/FOD PROTECTION IN REPAIR AREA BS 344-380; RBL 45 - RBL 65; WL 204 PER AMM 20-60-07.;[04] CUT OUT THE DAMAGE AT BS344+5 RBL50 WL208 PER SRM 53-10-51-2R-6 4. C. FIG. 202.;[05] RECEIVED 1 EA HFAB53-FTG-012 FITTING P0# 929560/1;[06] REQUEST NDI FOR FREE CRACK CONDITION;[07] VERIFIED CORRECTION ACTION; ITEM NO. 4 & 5; COMPLETED.;[08] HFEC INSPECTED CUT OUT AREA IAW 737 NDTM PART 6; 51-00-00 PROCEDURE 23.<BR>NO CRACKS NOTED.<BR>EQUIP USED:<BR>-NORTEC 600 ID: ATS1465 CAL DUE: 09/23;[09] FABRICATED REPAIR PARTS [1] FILLER FROM CLAD 7076T6 0.063' LOT# 1498631-1; [5] FILLER FROM CLAD 7076T6 0.020' LOT# 1353253-2; [7] FITTING HFAB53-FTG-012 FITTING P0# 929560/1 PER SRM 53-10-51-2R-6;[11] FABRICATED [6] FITTING HFAB53-FTG-012COSTUMER RO#929498-SWA.;[12] UPDATED STEP 1;[13] VERIFIED CORRECTIVE ACTIONS 9;10;11 AND 12 COMPLETE.;[14] FABRICATED [3] REPAIR ANGLE FROM 60-5872#7075T6 LOT #509308-1 PER SRM 53-10-51-2R-6 FIG. 203 DETAIL D. APPLIED CHEMICAL CONVERSION COATING TO REPAIR PART PER SRM 53-10-51-2R-6. AMM 51-21-41-370-802.

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