| AD Number | 69-06-01 | Status | Active |
| Effective Date | March 26, 1969 | Issue Date | Not specified |
| Docket Number | Unknown | Amendment | 39-734 |
| Product Type | ["Aircraft"] | Product Subtype | ["Large Airplane"] |
| CFR Part | --- - Part 39 | CFR Section | N/A |
| Citation | This information is not available. | ||
| Manufacturer(s) | Maryland Air Industries, Inc. |
| Model(s) | F-27 F-27A F-27B F-27F F-27G F-27J F-27M |
69-06-01 FAIRCHILD-HILLER: Amdt. 39-734. Applies to Type F-27 Airplanes Serial Numbers 1 through 124 inclusive. Incorporating Cutler Hammer P/N 6046 H46 Relay in Flap Control System.
Compliance required as follows:
To prevent hazards associated with flap drive system failure whereby the flaps are driven off the drive screw jacks, accomplish the following:
(a) Within the next 200 hours time in service after the effective date of this AD, and thereafter at 200 hour intervals from the date of the last inspection, open cover of wing flap system motor relay and visually inspect all contacts. Any finding of contact pitting or discoloration of contacts requires replacement of the relay with an unused part. The inspection may be terminated upon completion of the requirement of paragraph (b) of this AD.
(b) Within the next 500 hours time in service after the effective date of the AD, unless already accomplished, rewire the flap drive circuit in accordance with Fairchild Hiller F- 27 Service Bulletin F-27-27-67 dated February 1, 1969, for F-27 aircraft, or later revisions approved by the Chief, Engineering and Manufacturing Branch, FAA Eastern Region, or perform an equivalent modification approved by the Chief, Engineering and Manufacturing Branch, FAA Eastern Region.
(c) Upon request with substantiating data submitted through an FAA Maintenance Inspector, compliance time may be increased by the Chief, Engineering and Manufacturing Branch, FAA Eastern Region.
This amendment is effective March 26, 1969.