| AD Number | 57-04-01 | Status | Active |
| Effective Date | Not specified | 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 | This information is not available. | ||
| Manufacturer(s) | Cessna Aircraft Company |
| Model(s) | 310 310A 310B 310C 310D 310E 310F 310G 310H 310I 310J 310J-1 310K 310L 310N 310P 310Q 310R |
57-04-01 CESSNA: Applies to All Model 310 Aircraft Prior to and Including Serial Number 35392, Except Those Incorporating Aileron Hinges Having P/N 0824006-1 and -2.
Compliance required not later than April 15, 1957, and at 100-hour intervals of operation thereafter. Inspect the outboard aileron hinge for cracks in the upper flange, adjacent to the bearing. Any hinges found cracked should be replaced with the new, redesigned outboard aileron hinge (P/N 0824006-1 left, and 0824006-2 right). When the redesigned outboard aileron hinge is installed, this special inspection is no longer required.
To facilitate hinge replacement, it is permissible to cut a standard size inspection opening in the wing lower skin, below the outboard hinge, attachment point.
(Cessna Service Bulletin No. 310-7 covers this same subject.)