AD 80-13-13
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Viking Air Limited | DHC-6-1 | Airworthiness Directives; DeHavilland Model DHC-6 Series Airplanes |
| aircraft | Viking Air Limited | DHC-6-100 | Airworthiness Directives; DeHavilland Model DHC-6 Series Airplanes |
| aircraft | Viking Air Limited | DHC-6-200 | Airworthiness Directives; DeHavilland Model DHC-6 Series Airplanes |
| aircraft | Viking Air Limited | DHC-6-300 | Airworthiness Directives; DeHavilland Model DHC-6 Series Airplanes |
Unsafe Condition
Spreader strut lug failure and interference between float fitting and front strut.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Incorporate modifications in accordance with DeHavilland Service Bulletin 6/330, Revision 'C', or approved equivalent modification for aircraft with serial numbers 1 thru 611. Incorporate modification in accordance with Service Bulletin 6/357, Revision 'C', or approved equivalent modification for aircraft with front spreader struts P/N C6UF1014-1.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
within 100 hours in service or one month, whichever occurs first, after the effective date of this AD
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
DeHavilland Model DHC-6 series airplanes equipped with floats, including serial numbers 1 thru 611 and those with front spreader struts P/N C6UF1014-1.
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.