| AD Number | 47-10-20 | 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 |
47-10-20 LOCKHEED: (Was Mandatory Note 22 of AD-763-3.) Applies to All Model 49 Serials Up to and Including 2075.
Compliance required prior to June 1, 1947.
Replace all existing alcohol tanks with new type heavier tanks, LAC P/N 296424. Replace existing tank cradles with new cradles LAC P/N 296465.
(LAC Service Bulletin 49/SB-110, revised October 2, 1946, or subsequent, covers this same subject.)