| AD Number | 62-08-01 | Status | Active |
| Effective Date | April 10, 1962 | 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 | Federal Register: April 10, 1962 | ||
| Manufacturer(s) | Twin Commander Aircraft LLC |
| Model(s) | 680-F 720 |
62-08-01 AERO COMMANDER: Amdt. 415 Part 507 Federal Register April 10, 1962. Applies to All Models With Serial Numbers 1 Through 1170, Except Serial Numbers 1133, 1153, 1156, 1162, Models 720, and Pressurized Versions of Model 680F.
Compliance required within the next 25 hours' time in service after the effective date of this directive.
It has been found that fuel and fuel fumes are released within the cockpit area behind the instrument panel, through the fuel pressure gage case vent as a result of gage diaphragm rupture. Accordingly, a fuel drain line shall be installed leading from the fuel pressure gage vent connection and routed overboard through the belly of the aircraft in accordance with Aero Commander Service Bulletin No. 78 dated March 16, 1962, or an FAA approved equivalent.
This directive effective April 10, 1962.