| AD Number | 68-06-05 | Status | Active |
| Effective Date | March 23, 1968 | Issue Date | Not specified |
| Docket Number | Unknown | Amendment | 39-565 |
| Product Type | ["Aircraft"] | Product Subtype | ["Rotorcraft"] |
| CFR Part | --- - Part 39 | CFR Section | N/A |
| Citation | This information is not available. | ||
| Manufacturer(s) | FH1100 Manufacturing Corporation |
| Model(s) | FH-1100 |
68-06-05 FAIRCHILD-HILLER: Amdt. 39-565. Applies to FH-1100 type helicopters serial numbers 10 thru 76 inclusive and 83.
Compliance required as indicated unless already accomplished.
To preclude the possibility of failure of the engine-to-transmission coupling shaft due to corrosion resulting from water contamination, accomplish the following:
(a) Within the next 100 helicopter hours' time in service following the effective date of this AD, remove Bendix coupling shaft P/N 19E49-3A and inspect for any corrosion and if found, replace with P/N 19E49-3B or if corrosion is absent modify in accordance with accomplishment instructions contained in Fairchild Hiller Service Bulletin No. FH-1100-24-1 dated January 25, 1968, or later FAA approved revision, or an equivalent inspection procedure or modification approved by the Chief, Engineering and Manufacturing Branch, FAA Eastern Region.
(b) Upon request, with substantiating data submitted through an FAA maintenance inspector, the compliance time may be increased by the Chief, Engineering and Manufacturing Branch, FAA Eastern Region.
This amendment is effective March 23, 1968.