# SDR 2026FA0000264

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 8, 2026
- Submitted: April 8, 2026
- Operation: General aviation
- Aircraft: [N424CW](https://openairdocs.org/aircraft/N424CW), registered now
- Make and model: Cessna 525B
- Registry model: [Cessna 525B](https://openairdocs.org/model/cessna-525b) (OpenAirDocs)
- Aircraft serial: 525B0748
- Aircraft time: 169 hours, 134 cycles
- System (JASC): [3213 · Main Landing Gear Strut/Axle/Truck](https://openairdocs.org/jasc/3213)
- Part: Axle
- Condition: Out Of Tolerance
- Location: Zone 700
- Part time: 169 hours, 134 cycles
- Stage of operation: IN
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2026FA0000264

## Discrepancy

DURING THE 1ST TIRE CHANGE ON THIS AIRCRAFT SINCE PRODUCTION, IT WAS FOUND THAT BOTH MLG AXLE NUTS HAD JUST FINGER TIGHT TORQUE. THE MAINTENANCE MANUAL CALLS OUT 550 IN LBS INTIAL TORQUE, BACK TO ZERO, THEN 265 -275 IN LBS FINAL TORQUE. IT WAS FOUND AFTER INSPECTION, ALL 4 MLG WHEEL BEARINGS (BOTH AXLES) WERE BURNT, BROWN IN COLOR, BOTH WHEEL RACES (LEFT AND RIGHT MLG WHEELS) WERE OVERHEATED. BOTH MLG AXLES HAD SIGNS OF WHEEL BEARINGS SPINNING ON THE AXLE, AND THE GREASE SEALS CUT GROOVES IN THE AXLES. THIS WAS A PRODUCTION FAULT. THE AIRCRAFT WAS DELIVERED IN MAY 2025 AND THE FIRST TIRE CHANGE WAS AFTER 134 CYCLES. RESULTS OF THE DAMAGE WERE SENT TO TEXTRON AND ENGINEERING CONDEMNED THE AXLES WITH NO PROVISION TO FERRY THE AIRCRAFT TO A REPAIR FACILITY. NEW AXLES WILL BE NEEDED IN ORDER TO RETURN THE AIRCRAFT TO SERVICE

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