Technically… Hinge Screw Inspection

Service Bulletin 57-4144: Wings – Aileron Hinge Screw Inspection

Issued: February 2015

Compliance – Recommended: Beechcraft Corporation recommends that this Service Bulletin be accomplished at the next scheduled inspection or within 12 months, whichever occurs first.

Effectivity:

Airplanes Model A100-1 (U-21J) King Air; Model 200 King Air; Model 200C King Air; Model 200CT King Air; Model 200T King Air; Model B200 King Air; Model B200C King Air; Model B200CT King Air; Model B200T King Air; Model A200 (C-12A) King Air; Model A200 (C-12C) King Air; Model A200C (UC-12B) King Air; Model A200CT (C-12D) King Air; Model A200CT (FWC-12D) King Air; Model A200CT (C-12F) King Air; Model A200CT (RC-12D) King Air; Model A200CT (RC-12G) King Air; Model A200CT (RC-12H) King Air; Model A200CT (RC-12K) King Air; Model A200CT (RC-12P) King Air; Model A200CT (RC-12Q) King Air; Model B200C (C-12F) King Air; Model B200C (UC-12M) King Air; Model B200C (C-12R) King Air; Model B200C (UC-12F) King Air, all serial numbers;

Model B200GT King Air, serial numbers BY-1 through BY-206, and BY-208 through BY-218;

Model B200CGT King Air, all serial numbers;

Model 300 King Air and Model 300LW King Air, all serial numbers;

Model B300 King Air, serial numbers FL-1 through FL-949;

Model B300C King Air, serial numbers FM-1 through FM-56.

Spares None

Reason: This Service Bulletin is being issued to determine if proper length screws are installed at the aileron hinge points.

Description: This Service Bulletin provides instructions to inspect for proper length screws and replace, as necessary, screws at the inboard, middle, and outboard aileron hinge points.

Warranty: None.

Manpower: The following information is for planning purposes only:

Estimated man-hours: 1 hour
Suggested number of technicians: 1

The above is an estimate based on experienced, properly equipped technicians complying with this Service Bulletin. Occasionally, after work has started, conditions may be found that could result in additional man-hours.

The above information is abbreviated for
space purposes. For the entire communication,
go to www.beechcraft.com.