AD 99-19-25
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Airbus | A340-211 | Airworthiness Directives; Airbus Model A340 Series Airplanes |
| aircraft | Airbus | A340-212 | Airworthiness Directives; Airbus Model A340 Series Airplanes |
| aircraft | Airbus | A340-213 | Airworthiness Directives; Airbus Model A340 Series Airplanes |
| aircraft | Airbus | A340-311 | Airworthiness Directives; Airbus Model A340 Series Airplanes |
| aircraft | Airbus | A340-312 | Airworthiness Directives; Airbus Model A340 Series Airplanes |
| aircraft | Airbus | A340-313 | Airworthiness Directives; Airbus Model A340 Series Airplanes |
Unsafe Condition
Defective gland nuts with incorrect thread profile on center landing gear (CLG) shock struts may cause CLG disengagement from the main fitting during take-off, leading to structural damage or injury.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Perform a detailed visual inspection of all gland nuts supplied with specified CLG shock struts to verify correct thread profile. Replace any defective gland nuts with new parts prior to further flight.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within one month after the effective date (September 30, 1999), and prior to further flight for replacements.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Airbus Model A340 series airplanes with Modification 43028 (incorporated via Airbus Service Bulletin A340-32-4083).
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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