AD 2010-23-21
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Bombardier | DHC-7 | Airworthiness Directives; Viking Air Limited (Type Certificate Previously Held by Bombardier, Inc.) Model DHC-7 Airplanes |
| aircraft | Bombardier | Various | Airworthiness Directives; Viking Air Limited (Type Certificate Previously Held by Bombardier, Inc.) Model DHC-7 Airplanes |
| aircraft | Viking | Various | Airworthiness Directives; Viking Air Limited (Type Certificate Previously Held by Bombardier, Inc.) Model DHC-7 Airplanes |
| aircraft | Aviat | Various | Airworthiness Directives; Viking Air Limited (Type Certificate Previously Held by Bombardier, Inc.) Model DHC-7 Airplanes |
Unsafe Condition
Potential ignition sources within the fuel system could result in a fuel tank explosion.
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Required Actions
Within 60 days after the effective date, incorporate all fuel system limitation (FSL) tasks as specified in the temporary revisions listed in Chapter 5 of the Viking Dash 7 Series 1/100 Aircraft Maintenance Manual (AMM), PSM 1-7-2. Also, incorporate Section 5-10-13 as specified in Viking Air Limited TR 5-106, dated December 15, 2008, to Chapter 5 of the Viking Dash 7 Series 100 Maintenance Manual PSM 1-7-2. Perform initial inspections according to the specified times in Table 1 of this AD.
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Compliance Time
Within 60 days after the effective date of this AD
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Affected Aircraft
Viking Air Limited (Type Certificate previously held by Bombardier, Inc.) Model DHC-7-1, DHC-7-100, DHC-7-101, DHC-7-102, and DHC-7-103 airplanes, certificated in any category.
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Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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