# SDR AWXA200600321

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 12, 2006
- Submitted: February 16, 2006
- Operation: Air carrier
- Aircraft: [N328AW](https://openairdocs.org/aircraft/N328AW), registered now
- Make and model: Boeing 737-3B7
- Registry model: [Boeing 737-3B7](https://openairdocs.org/model/boeing-737-3b7) (OpenAirDocs)
- Aircraft serial: 23377
- Aircraft time: 61,229 hours, 37,424 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Stiffener
- Part number: 654587514
- Condition: Corroded
- Location: Threshold
- 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/AWXA200600321

## Discrepancy

MCN - DURING C24 CHECK DISCOVERED LEVEL 2 CORROSION ON 3 ZEE STIFFENERS SUPPORTS FOR THE R1 DOOR THRESHOLD PLATE, FROM BS 312 TO BS 328, WL 208 AND BL 62R.  MAINTENANCE REMOVED, FABRICATED AND INSTALLED 3 REPLACEMENT ZEE STIFFENERS FOR THE R1 THRESHOLD PLATE SUPPORTS IAW BOEING 737-300 SRM 51-40-02-0G FIGURES 3, 4, 6, 7, 8 AND BACK DWG 65-45875.

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