AD 79-04-03 R2
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Embraer S.A. | EMB-110P1 | Airworthiness Directives; Empresa Brasileira De Aeronautica, S.A. (Embraer) Models EMB-110P1 and EMB-110P2 |
| aircraft | Embraer S.A. | EMB-110P2 | Airworthiness Directives; Empresa Brasileira De Aeronautica, S.A. (Embraer) Models EMB-110P1 and EMB-110P2 |
Unsafe Condition
Failure of the oleo strut assemblies due to cracks at the weld joining the torque link-to-shock strut attachment and cracks in the upper half-drag struts near the hydraulic actuator joint.
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Required Actions
Inspect and replace oleo strut assemblies (P/N 15164A/B/C and 15165A/B/C) on shock struts (P/N 14570/14575) with 2,000 landings or more. Conduct daily visual inspections with a 10-power magnifying glass and dye-penetrant inspections every 200 landings. Retire shock struts at 3,000 landings. Inspect and replace upper half-drag struts (P/N 14284/14334) without shot-peening treatment via visual and dye-penetrant methods every 200 landings. Replace those with 18,750 landings within 100 landings. For shot-peened struts (P/N 14284A/14334A), inspect every 400 landings after 9,700 landings and replace at 18,750 landings. Use one landing per flying hour for unrecorded landings. Allow FAA inspector adjustments with approval.
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Compliance Time
Required as indicated unless already accomplished.
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Affected Aircraft
Embraer S.A. Models EMB-110P1 and EMB-110P2 (all serial numbers)
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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