| AD Number | 47-10-07 | Status | Active |
| Effective Date | Not specified | Issue Date | Not specified |
| Docket Number | Unknown | Amendment | N/A |
| Product Type | ["Aircraft"] | Product Subtype | ["Large Airplane"] |
| CFR Part | --- - Part 39 | CFR Section | N/A |
| Citation | This information is not available. | ||
| Manufacturer(s) | Lockheed Aircraft Corporation |
| Model(s) | 49-46 |
47-10-07 LOCKHEED: (Was Mandatory Note 8 of AD-763-3.) Applies Only to Model 49 Serial Numbers 2021 to 2088, Inclusive.
Compliance required prior to April 1, 1947.
Replace the existing restrictor valve (P/N 66404) in each main landing gear down line with a winterized type restrictor valve (LAC P/N 667489.)
(LAC Service Instruction 049/SI-75, covers this same subject.)