# SDR UIEA2026013000023

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 5, 2026
- Submitted: February 9, 2026
- Operation: Air carrier
- Aircraft: [N439GT](https://openairdocs.org/aircraft/N439GT), registered now
- Make and model: Boeing 747409F
- Aircraft serial: 30767
- Aircraft time: 99,231 hours, 18,065 cycles
- System (JASC): [5343 · Fuselage, Landing Gear Attach Fittings](https://openairdocs.org/jasc/5343)
- Part: Trunnion
- Condition: Corroded
- Location: Zone 700
- 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/UIEA2026013000023

## Discrepancy

CORROSION ON OTBD EDGE OF LT BODY GEAR TRUNNION CAP.  BLENDED AREA ON OTBD EDGE OF LT BODY GEAR TRUNNION INBD CAP.  PERFORMED NDT AND DVI INSP. NO DEFECTS NOTED. ACCOMPLISHED FLAP PEEN, APPLIED TREATMENT, PRIMER AND TOPCOAT PER 747 SRM 53-40-90-2R-1 REP 1 PG 7A DETAIL III. COMPLIED WITH BOEING MESSAGE EAC-TLS-26-0001-08C. FOUND REPAIR STRUCTURALLY ACCEPTABLE AS A CATEGORY "C" REP. WITH VISUALS INSP OF THE FITTING EVERY 200 FC AND PERMANENT REPAIR DUE WITH IN 2000 FC OR 24 MONTHS, WHICH EVER IS FIRST. NO FURTHER DFECETS NOTED.

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