AD 87-24-01
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Embraer - Empresa Brasileira de Aeronautica S.A. | EMB-120 | Airworthiness Directives; EMPRESA BRASILEIRA DE AERONAUTICA S.A. (EMBRAER) Model EMB-120 Series Airplanes |
| aircraft | Embraer - Empresa Brasileira de Aeronautica S.A. | EMB-120RT | Airworthiness Directives; EMPRESA BRASILEIRA DE AERONAUTICA S.A. (EMBRAER) Model EMB-120 Series Airplanes |
Unsafe Condition
Failure of the main landing gear outboard wheel half due to cracking.
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Required Actions
Inspect the main landing gear outboard wheel halves (part number 300-603) for cracking using visual and eddy current methods per BF Goodrich Service Bulletin 467, Revision 1. Replace cracked wheel halves with an airworthy FAA-approved assembly before further flight. Repeat inspections every 300 landings until an ultrasonic inspection confirms no cracks and proper stamping, then use ultrasonic inspections thereafter.
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Compliance Time
Within the next 200 landings after the effective date of this AD
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Affected Aircraft
EMBRAER Model EMB-120 series airplanes equipped with outboard main landing gear wheel halves having serial numbers in BF Goodrich Service Bulletin 467, Revision 1 (dated June 19, 1987)
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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