Main WheelBF GoodrichCMM 32-40-22
3-1422/3-1427/3-1428
Boeing
757
Alternative Part NumberS160N010-23
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Overview
The 3-1422/3-1427/3-1428 is a main wheel assembly used on Boeing 757. Manufactured by Goodrich.
Material
Contact for specs
Manufacturer
BF Goodrich
CMM Reference
32-40-22
Aircraft
Boeing
Maintenance Schedule
Eddy Current / NDTEvery tire change
OverhaulAdded inspection at every 6th tire change, This interval is based on 250 cycles (landings) between tire changes. Adjust the interval if the aircraft has more or less cycles between tire changes.
Wear Pointsbearings, o-ring grooves, corrosion
Penetrant Inspection → Overhaul
Per CMM: Per CMM, any wheel requiring penetrant inspection is processed as an overhaul. Owners may elect overhaul at any tire change to extend service life.
Standard Tire Change Scope
Every tire change replaces the tire, the main wheel-half preformed packing (O-ring), the valve cap, and the valve core. Specific part numbers and dash sizes vary by wheel and are pulled from the CMM at the time of service.
Inspection Criteria
GeneralGeneral overhaul criteria — see the CMM for full specifications and numeric limits:
- Drive keys: replace if damaged, corroded, or loose.
- Heat shield: replace if cracked, burned, or mechanically damaged.
- Bolts and nuts: replace if cracked, corroded, thread-damaged, or failing the back-off torque test.
- Bearings (cones and cups): replace if spalled, discolored from heat, pitted, or showing any surface wear.
- Wheel halves: replace if cracked, out-of-round beyond CMM limits, or showing seal-groove damage.
- Preformed packings and O-rings: replace at every disassembly.
- Retaining rings and lockwire: replace whenever removed.
Service Pricing
Tire Change
Labor, starting at
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Overhaul
Labor, starting at
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Pricing reflects labor only. Parts, shop supplies, and freight are billed as incurred.
Tire Change Turnaround
- Standard48 hoursNo surcharge
- Expedited24 hours+$200 per wheel
- AOGSame-day (2–3 hours)+$400 per wheelRetention check waived to meet same-day release.
Overhaul Turnaround
- Standard10 business daysNo surcharge
- Expedited3–5 business days+$200 per wheel