| AD Number | 56-20-06 | Status | Active |
| Effective Date | Not specified | Issue Date | Not specified |
| Docket Number | Unknown | Amendment | N/A |
| Product Type | ["Appliance"] | Product Subtype | Not specified |
| CFR Part | --- - Part 39 | CFR Section | N/A |
| Citation | This information is not available. | ||
| Manufacturer(s) | Curtiss-Wright/Marquette, Inc. Hamilton Standard |
| Model(s) | Double Row Turbo Cyclone 972TC18DA1 (R-3350-34, -91) Double Row Turbo Cyclone 972TC18DA2 Double Row Turbo Cyclone 972TC18DA3 Double Row Turbo Cyclone 972TC18DA4 Double Row Turbo Cyclone 981TC18EA1 Double Row Turbo Cyclone 988TC18EA1 Double Row Turbo Cyclone 988TC18EA2 Double Row Turbo Cyclone 988TC18EA3 Double Row Turbo Cyclone 988TC18EA4 Double Row Turbo Cyclone 988TC18EA5 Double Row Turbo Cyclone 988TC18EA6 Governors |
56-20-06 HAMILTON STANDARD: Applies to All Hamilton Standard Governors Installed on Wright TC18DA and TC18EA Series Turbocompound Engines.
Compliance required prior to October 15, 1956.
Subsequent to October 15, 1956, no Hamilton Standard governor drive gear shafts P/N 67035 shall be used in their governors installed on Wright TC18 Series turbocompound engines.
This supersedes AD 56-02-02.