# SDR DL72P961144

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 16, 1996
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: N8891Z
- Make and model: Boeing 727225
- Aircraft serial: 21860
- System (JASC): [5312 · Fuselage Main, Bulkhead](https://openairdocs.org/jasc/5312)
- Part: Bulkhead Web
- Part number: 6516350344
- Condition: Cracked
- Location: Bs 1183
- 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/DL72P961144

## Discrepancy

THE BS 1183 BULKHEAD WEB WAS FOUND CRACKED AT RBL 26.  THERE IS A .25 INCH CRACK AT WL 170.  THE WEB IS A BONDED ASSEMBLY OF 2024-T3 CLAD WITH A LOCAL THICKNESS OF .050 INCH.  THE CRACK LOCATION IS OUTSIDE OF THE INSPECTION AREA SPECIFIED BY BOEING SERVICE BULLETIN 727-53-171.  THE VERTICAL STIFFENER AT RBL 26, THE TOPIC OF BOEING SERVICE BULLETIN 727-53-0182, IS NOT DAMAGED.

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