# SDR CALA2024041501062

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 12, 2024
- Submitted: April 15, 2024
- Operation: Air carrier
- Aircraft: [N643UA](https://openairdocs.org/aircraft/N643UA), registered now
- Make and model: Boeing 767322
- Aircraft serial: 25093
- Aircraft time: 129,344 hours, 20,098 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Angle
- Part number: 146T0051Y40
- Condition: Corroded
- Location: Aft Cabin
- Stage of operation: IN
- How discovered: O
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA2024041501062

## Discrepancy

AFT CABIN AREA R4 DOOR SILL AFT INTE RNAL SECTION SUPPORT STRUCTURE HAS CORROSION AT 2 LOCATIONS STA 1510.5 AND 1535 APPROX. MARKED WITH STREAMER 3259.  CORROSION ON R4 DOOR SILL WAS BLENDED AND FOUND TO BE OUT OF LIMITS IAW B767 SRM 53-00-15. R4 DOOR SILL CHORD WAS REMOVED AND REPLACED IAW SRM 51-40-02.

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