AD 97-21-14
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | EADS CASA | C-212-CB | Airworthiness Directives; CONSTRUCCIONES AERONAUTICAS, S.A. (CASA) Model C-212 Series Airplanes |
| aircraft | EADS CASA | C-212-CC | Airworthiness Directives; CONSTRUCCIONES AERONAUTICAS, S.A. (CASA) Model C-212 Series Airplanes |
| aircraft | EADS CASA | C-212-CD | Airworthiness Directives; CONSTRUCCIONES AERONAUTICAS, S.A. (CASA) Model C-212 Series Airplanes |
| aircraft | EADS CASA | C-212-CE | Airworthiness Directives; CONSTRUCCIONES AERONAUTICAS, S.A. (CASA) Model C-212 Series Airplanes |
| aircraft | EADS CASA | C-212-CF | Airworthiness Directives; CONSTRUCCIONES AERONAUTICAS, S.A. (CASA) Model C-212 Series Airplanes |
| aircraft | EADS CASA | C-212-DE | Airworthiness Directives; CONSTRUCCIONES AERONAUTICAS, S.A. (CASA) Model C-212 Series Airplanes |
| aircraft | EADS CASA | C-212-DF | Airworthiness Directives; CONSTRUCCIONES AERONAUTICAS, S.A. (CASA) Model C-212 Series Airplanes |
Unsafe Condition
Failure of the screw pins that hold the restrictor pistons on the slide tubes of the shock absorbers, leading to loss of hydraulic damping in the main landing gear and consequent structural damage to the airplane.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect each restrictor piston to detect the number and condition of installed threaded screw pins per CASA SB-212-32-38. Replace loose pins, and depending on the configuration, either take no further action if three pins are present, remove epoxy and install two additional pins if one pin and sealed holes exist, or perform repetitive inspections every 600 hours time-in-service and modify the piston within 1,800 hours time-in-service or 3 years after the AD's effective date if only one pin and no other holes are present.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Prior to the accumulation of 600 hours time-in-service after the effective date of this AD, and subsequent actions as specified (e.g., 1,800 hours time-in-service or 3 years, whichever is later).
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
All Model C-212 series airplanes, certificated in any category.
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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