AD 63-18-01
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Bombardier Inc. | CL-44D4 | Airworthiness Directives; CANADAIR Model CL-44D4 Aircraft |
Unsafe Condition
Failure of an elevator hinge bolt.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Replace the elevator station 299 hinge bolt aluminum locking plate with steel components per Canadair Service Bulletin CL44D4-302. Replace aluminum locking plates at Stations 84, 174.9, and 181 with steel devices per CL44D4-316 Part A. Conduct inspections for damage on hinge components every 250 hours' time in service. Perform special inspections per Canadair Service Information Circulars based on stabilizer configuration.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within 50 hours' time in service from the effective date of this AD for initial replacements. Subsequent actions have varying compliance times: 250 hours' time in service for other replacements and initial inspections, with some extendable to 500 hours with prior inspection. Inspections must recur every 250 hours' time in service from the last inspection.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Bombardier Inc. Model CL-44D4 aircraft as specified in Canadair Service Bulletins and Modification Summaries referenced in the AD.
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
This site is not affiliated with or endorsed by the FAA. Always verify with official sources.