| AD Number | 47-10-22 | 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 |
47-10-22 LOCKHEED: (Was Mandatory Note 24 of AD-763-3.) Applies to Model 49 Serials 1975, 1976, 1977, and 2021 Through 2065.
Compliance required prior to March 1, 1947.
Install steel retainer washer (American LaFranch P/N 2CD-3054C) in place of existing aluminum alloy retainer washer on fire extinguisher selector valve.
(LAC Service Bulletin 49/SB-27 covers this same subject.)