AD 90-02-03
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Bombardier Inc. | DHC-8-101 | Airworthiness Directives; Boeing Of Canada, Ltd., De Havilland Division Model DHC-8 Series Airplanes |
| aircraft | Bombardier Inc. | DHC-8-102 | Airworthiness Directives; Boeing Of Canada, Ltd., De Havilland Division Model DHC-8 Series Airplanes |
| aircraft | Bombardier Inc. | DHC-8-103 | Airworthiness Directives; Boeing Of Canada, Ltd., De Havilland Division Model DHC-8 Series Airplanes |
| aircraft | Bombardier Inc. | DHC-8-106 | Airworthiness Directives; Boeing Of Canada, Ltd., De Havilland Division Model DHC-8 Series Airplanes |
| aircraft | Bombardier Inc. | DHC-8-201 | Airworthiness Directives; Boeing Of Canada, Ltd., De Havilland Division Model DHC-8 Series Airplanes |
| aircraft | Bombardier Inc. | DHC-8-202 | Airworthiness Directives; Boeing Of Canada, Ltd., De Havilland Division Model DHC-8 Series Airplanes |
| aircraft | Bombardier Inc. | DHC-8-301 | Airworthiness Directives; Boeing Of Canada, Ltd., De Havilland Division Model DHC-8 Series Airplanes |
| aircraft | Bombardier Inc. | DHC-8-311 | Airworthiness Directives; Boeing Of Canada, Ltd., De Havilland Division Model DHC-8 Series Airplanes |
| aircraft | Bombardier Inc. | DHC-8-315 | Airworthiness Directives; Boeing Of Canada, Ltd., De Havilland Division Model DHC-8 Series Airplanes |
| aircraft | Bombardier Inc. | DHC-8-400 | Airworthiness Directives; Boeing Of Canada, Ltd., De Havilland Division Model DHC-8 Series Airplanes |
Unsafe Condition
Fatigue failure of the flap track No. 5 fail safe straps.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Perform a visual inspection for cracks in the flap track No. 5 fail safe straps per Service Bulletin 8-57-10. Modify strap holes if no cracks are found; replace with new straps if cracks are found before further flight. Allow alternate compliance with FAA approval.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
within 500 hours time-in-service or 90 days after the effective date of this AD, whichever occurs first
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Affected Aircraft
Model DHC-8 series airplanes, Serial Numbers 1 through 119
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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