AD 67-19-03
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Bombardier Inc. | CL-44D4 | Airworthiness Directives; CANADAIR Model CL-44D4 Airplanes |
Unsafe Condition
Cracks in the horizontal stabilizer front spar web from Station 56 to 77.
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Required Actions
Inspect the front spar web by removing access panels P/N 912-2 and P/N 913-2 (Station 52 to 59) and visually inspect for cracks from Station 56 to 77, or use an FAA-approved equivalent inspection. Repair cracked parts with an FAA-approved repair or replace with inspected or FAA-approved equivalent parts. Discontinue inspections after modifying the spar web with an FAA-approved modification.
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Compliance Time
Within the next 25 hours' time in service after the effective date (June 10, 1967) for stabilizers with 13,500+ hours, or before accumulating 13,525 hours' time in service for those with less than 13,500 hours. Thereafter, inspections must occur at intervals not exceeding 250 hours' time in service from the last inspection.
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Affected Aircraft
CANADAIR Model CL-44D4 airplanes with horizontal stabilizers requiring inspection as specified.
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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