# SDR DL73E961068

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 2, 1996
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: [N244WA](https://openairdocs.org/aircraft/N244WA), registered now
- Make and model: Boeing 737247
- Aircraft serial: 23518
- System (JASC): [5312 · Fuselage Main, Bulkhead](https://openairdocs.org/jasc/5312)
- Part: Blkhd Stiffener
- Condition: Cracked
- Location: Bs 178
- Stage of operation: IN
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DL73E961068

## Discrepancy

DURING ACCOMPLISHMENT OF S.I. 3-69482-12, CRACKS WERE DISCOVERED IN THE BS 178 BULKHEAD WEB AND THE RBL 5.7 VERTICAL STIFFENER.  THE VERTICAL STIFFENER AT RBL 5.7 ADJACENT TO WL 15 HAS A 1 INCH CRACK ALONG THE RADIUS.  THE CHORD IS MANUFACTURED FROM BAC1505-100361 7075-T6 ALTERED EXTRUSION.  THE WEB WAS FOUND CRACKED AT SEVERAL LOCATIONS BETWEEN WL 184.5 AND WL 207 AND LBL 5.7 TO RBL 5.7.  THE WEB IS MANUFACTURED FROM 0.040 INCH 2024-T3 CLAD.

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