| AD Number | 47-21-11 | Status | Active |
| Effective Date | Not specified | Issue Date | Not specified |
| Docket Number | Unknown | Amendment | N/A |
| Product Type | ["Aircraft"] | Product Subtype | ["Small Airplane"] |
| CFR Part | --- - Part 39 | CFR Section | N/A |
| Citation | This information is not available. | ||
| Manufacturer(s) | Sky Enterprises, Inc. |
| Model(s) | RC-3 |
47-21-11 REPUBLIC: (Was Mandatory Note 1 of AD-769-2.) Applies to Model RC-3 Aircraft Serial Numbers 5 to 174, Inclusive.
Compliance required prior to July 1, 1947.
In order to prevent short circuiting of terminal studs on the firewall, remove each stud, enlarge the hole (0.316 drill) and insert a bushing (P/N 17F82080-1).
(Republic Seabee Service Bulletin No. 1, dated December 18, 1946, covers this same subject.)