| AD Number | 84-07-02 | Status | Active |
| Effective Date | April 09, 1984 | Issue Date | Not specified |
| Docket Number | Unknown | Amendment | 39-4836 |
| Product Type | ["Aircraft"] | Product Subtype | ["Large Airplane"] |
| CFR Part | --- - Part 39 | CFR Section | N/A |
| Citation | This information is not available. | ||
| Manufacturer(s) | Mitsubishi Heavy Industries, Ltd. |
| Model(s) | YS-11 YS-11A-200 YS-11A-300 YS-11A-500 YS-11A-600 |
84-07-02 NAMC (NIHON AIRPLANE MANUFACTURING COMPANY): Amendment 39-4836. Applies to all Model NAMC YS-11/-11A series airplanes fitted with a main deck cargo door certificated in all categories. To prevent inadvertent opening of the main deck cargo door during flight, accomplish the following, unless already accomplished:
A. Within 450 flight hours time in service or 90 days after the effective date of this AD, whichever occurs first, modify the main cargo door handle lock mechanism in accordance with NAMC YS-11 Service Bulletin 52-92, Revision 1, dated September 29, 1983.
B. Alternate means of compliance which provide an equivalent level of safety may be used when approved by the Manager, Seattle Aircraft Certification Office, FAA, Northwest Mountain Region.
C. Special flight permits may be issued in accordance with FAR 21.197 and 21.199 to operate airplanes to a base for the accomplishment of inspections and/or modifications required by this AD.
This amendment becomes effective April 9, 1984.