AD 70-10-03
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Kelowna Flightcraft R & D Ltd. | 240 Series | Airworthiness Directives; GENERAL DYNAMICS Model 240/340/440 Airplanes |
| aircraft | Kelowna Flightcraft R & D Ltd. | 340 | Airworthiness Directives; GENERAL DYNAMICS Model 240/340/440 Airplanes |
| aircraft | Kelowna Flightcraft R & D Ltd. | 440 | Airworthiness Directives; GENERAL DYNAMICS Model 240/340/440 Airplanes |
Unsafe Condition
Engine breather oil and fumes seeping around the engine oil breather overboard discharge tube and between the trough and deflector assembly and being drawn into the nacelle afterbody.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Install an extension of the engine oil breather overboard discharge tube within 250 hours time in service. Weld the breather tube to the collar of the trailing edge assembly within 450 hours time in service. Seal the area with HT-1 Stabond sealant until the weld is accomplished and inspect the sealant every 50 hours time in service.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within 250 hours time in service after the effective date of this A.D. unless already accomplished and within 450 hours time in service unless already accomplished
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
General Dynamics Model 240/340/440 airplanes equipped with Rolls Royce MK 542-4/-4K engines and specific Dowty Rotol propellers in accordance with Supplemental Type Certificates SA1054WE and SA1096WE.
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.