| AD Number | 70-10-03 | Status | Active |
| Effective Date | May 12, 1970 | Issue Date | Not specified |
| Docket Number | Unknown | Amendment | 39-985 |
| Product Type | ["Aircraft"] | Product Subtype | ["Large Airplane"] |
| CFR Part | --- - Part 39 | CFR Section | N/A |
| Citation | This information is not available. | ||
| Manufacturer(s) | Kelowna Flightcraft R & D Ltd. |
| Model(s) | 240 Series 340 440 |
70-10-03 GENERAL DYNAMICS: Amdt. 39-985. Applies to General Dynamics Model 240 airplanes equipped with Rolls Royce MK 542-4/-4K engines and Dowty Rotol (C)R245/4- 40-4.5/13 propellers in accordance with General Dynamics Supplemental Type Certificate SA1054WE (hereinafter referred to as the CV-600) and General Dynamics Model 340 and 440 airplanes equipped with Rolls Royce MK 542-4/-4K engines and Dowty Rotol (c)R245/4-40- 4.5/13 or Dowty Rotol (c)R259/4-40-4.5/17 propellers in accordance with General Dynamics Supplemental Type Certificate SA1096WE (hereinafter referred to as the CV-640).
Compliance required as indicated.
To preclude the possibility of 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, accomplish the following:
(a) Within 250 hours time in service after the effective date of this A.D. unless already accomplished install anextension of the engine oil breather overboard discharge tube in accordance with 2A. Part I of General Dynamics/Convair Service Bulletin 600(240D) S.B. No. 71-2B/640 (340D), S.B. No. 71-2B, dated 17 April 1970, Reissue B, or later FAA approved revisions, or an equivalent modification approved by the Chief, Aircraft Engineering Division, FAA Western Region.
(b) Within 450 hours time in service unless already accomplished weld the breather tube to the collar of the trailing edge assembly of the trough installation to effect a positive seal in accordance with 2B Part II or 2C Part III of General Dynamics/Convair Service Bulletin 600(240D), S.B. No. 71-2B/640(340D) S.B. No. 71-2B dated 17 April 1970, Reissue B or later FAA approved revisions, or an equivalent modification approved by the Chief, Aircraft Engineering Division, FAA Western Region.
(c) Concurrent with (a), above, and until (b) above is accomplished seal the area surrounding the oil breather tube at the nacelle afterbody trailing edge with HT-1 Stabond sealant or similar sealing material. Inspect this sealant every 50 hours time in service and replace sealant material as necessary.
This supersedes Amendment 39-957, AD 70-06-06 (published in 35 F.R.4547).
This amendment becomes effective May 12, 1970.