AD 63-03-02
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Bombardier Inc. | CL-44D4 | Airworthiness Directives; CANADAIR Model CL-44D4 Aircraft |
Unsafe Condition
Failure of a riveted rudder lower balance weight.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect the rudder bottom closing rib for detached balance weights before each departure from the principal maintenance base. Inspect the rivet attachment of the two weights within 35 hours' time in service after the effective date. Replace loose or failed rivets with bolts as specified. Replace all ten 1/8-inch rivets with AN 509-10R-30 bolts, AN 960-10 washers, and NAS 679A3W lock nuts within 250 hours' time in service after the effective date.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within the next 35 hours' time in service after the effective date of this AD and within the next 250 hours' time in service after the effective date.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Bombardier Inc. Model CL-44D4 aircraft.
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.