# SDR CALA0700336

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 3, 2007
- Submitted: July 6, 2007
- Operation: Air carrier
- Aircraft: [N73259](https://openairdocs.org/aircraft/N73259), registered now
- Make and model: Boeing 737824
- Aircraft serial: 30803
- Aircraft time: 20,122 hours, 6,993 cycles
- System (JASC): [5714 · Wing, Center Box](https://openairdocs.org/jasc/5714)
- Part: Vapor Barrier
- Condition: Cracked
- Location: Mlg W/W
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA0700336

## Discrepancy

INSPECTION FOUND MLG WHEEL WELL LEFT FORWARD BULKHEAD HAD A CRACK ON VAPOR BARRIER, REAR SPAR CENTER SECTION, LT SIDE THAT HAD MIGRATED BEYOND A STOP DRILL.  THE CRACK WAS NOW 18 INCHES LONG.  A TEMPORARY REPAIR HAD BEEN PERFORMED PREVIOUSLY A FEW MONTHS PRIOR.  A PERMANENT REPAIR WAS PERFORMED IAW SRM 57-10-10 TO BAYS 5, 7 AND 8.

---
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.