AD 93-11-08
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Viking Air Limited | DHC-7-1 | Airworthiness Directives; De Havilland Model DHC-7 Series Airplanes |
| aircraft | Viking Air Limited | DHC-7-100 | Airworthiness Directives; De Havilland Model DHC-7 Series Airplanes |
| aircraft | Viking Air Limited | DHC-7-101 | Airworthiness Directives; De Havilland Model DHC-7 Series Airplanes |
| aircraft | Viking Air Limited | DHC-7-102 | Airworthiness Directives; De Havilland Model DHC-7 Series Airplanes |
| aircraft | Viking Air Limited | DHC-7-103 | Airworthiness Directives; De Havilland Model DHC-7 Series Airplanes |
Unsafe Condition
Loose or damaged rivets on the ground spoiler actuator attachment brackets or fuel leakage could lead to structural failure.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Within 6 months after the effective date, perform a one-time inspection of the lower two securing rivets on the left- and right-hand ground spoiler actuator attachment brackets. If loose/damaged rivets or fuel leakage are found, modify the brackets (Modification No. 7/1827) before further flight. If no issues are found, modify the brackets within 6 months after the inspection.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within 6 months after the effective date of this AD
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Affected Aircraft
De Havilland Model DHC-7 series airplanes; serial numbers 1 through 30, inclusive; certificated in any category.
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
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