# SDR IPXA2026013069167

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 12, 2026
- Submitted: February 3, 2026
- Operation: Air carrier
- Aircraft: [N411UP](https://openairdocs.org/aircraft/N411UP), registered now
- Make and model: Boeing 757-24APF
- Registry model: [Boeing 757-24APF](https://openairdocs.org/model/boeing-757-24apf) (OpenAirDocs)
- Aircraft serial: 23851
- Aircraft time: 39,473 hours, 26,446 cycles
- System (JASC): [5350 · Aerodynamic Fairings](https://openairdocs.org/jasc/5350)
- Part: Tee Angle
- Part number: 149N77344
- Condition: Corroded
- Location: Zone 100
- 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/IPXA2026013069167

## Discrepancy

WING TO BODY FAIRING STRUCTURE LOWER T-CHORD EXFOLIATED AND WITH MULTIPLE SPOTS OF HEAVY CORROSION FROM BS 1180 TO 1240 AT RBL 57.50. DOT 21-40.  EVALUATED TEE FITTING BETWEEN STA 1180-1240  AT RBL 57.5 AND FOUND TO BE EXFLOIATED WITH 100% MATERIAL LOSS AND IS THEREFORE OUT OF LIMITS PER SRM 53-00-71-1A-1.  INSTALLED 1 TEE FITTING+ 5 GAP PANELS IAW SRM 51-10-42.

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