# SDR CALA2025120811867

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 5, 2025
- Submitted: December 8, 2025
- Operation: Air carrier
- Aircraft: [N77865](https://openairdocs.org/aircraft/N77865), registered now
- Make and model: Boeing 757-33N
- Registry model: [Boeing 757-33N](https://openairdocs.org/model/boeing-757-33n) (OpenAirDocs)
- Aircraft serial: 32589
- Aircraft time: 72,509 hours, 21,526 cycles
- System (JASC): [5340 · Fuselage Main, Attach Fittings](https://openairdocs.org/jasc/5340)
- Part: Tee Angle
- Part number: 149N7130
- Condition: Corroded
- Location: Zone 200
- 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/CALA2025120811867

## Discrepancy

CORROSION FOUND AT TEE CHORD LOWER SURFACE AT BS 900 BOTTOM SECTION.    PERFORMED TEE CHORD REPAIR ON BS 900 BOTTOM, FABRICATED PARTS ON TRAVELER'S T25/1841651, T25/1841652 AND T25/1841653 IAW SRM 51-70-06,  APPLIED TREAT, PRIMER, TOP COAT AND CIC.

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