# SDR CALA2024041501063

- 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: Door Sill
- Part number: 146T0051U39
- Condition: Corroded
- Location: L4 Door
- 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/CALA2024041501063

## Discrepancy

AFT CABIN AREA L4 DOOR SILL MIDDLE I NTERNAL SECTION SUPPORT STRUCTURE HAS CORROSION AT STATION 1510. 5 APPROX. MARKED WITH STREAMER 3261. REPORTED BY V921207 REMOVED CORRODED L4 DOOR CHORD/FLOOR SUPPORT TEE FROM STA.1487- 1562, LBL-88 AND INSTALLED SERVICEABLE NEW CHORD/TEE. P/N 146T0051039, RQ 5076407 IAW 767-300 SRM 51-40-02, PAR 7 & 9.

---
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.