AD 2004-20-09
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Bombardier | Various | Airworthiness Directives; Bombardier Model CL-600-2B19 (Regional Jet Series 100 & 440) Airplanes |
Unsafe Condition
Fatigue cracking of the main fitting of the main landing gear (MLG) initiated from a corrosion pit, which could lead to failure of the main fitting and consequent collapse of the MLG.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect for cracks, sealant damage, and corrosion of the main fittings of the MLG. Replace any cracked main fitting with a new or serviceable part. Perform eddy current inspections if necessary. Repeat inspections at reduced intervals if cracks are found.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within 5 days following the initial visual inspection of the sealant, and every 5 days thereafter, in addition to ultrasonic inspections within 500 flight cycles.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Bombardier Model CL-600-2B19 (Regional Jet Series 100 & 440) airplanes.
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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