AD 54-15-01

54-15-01 de HAVILLAND: Applies to All Model DHC-2 (Beaver) Aircraft, Serial Numbers 1 to 680 Inclusive.

Compliance required by August 30, 1954.

Inspect all rudder, elevator and aileron control cable terminals for damaged threads at the turnbuckle.

Most reported defects have concerned the right-hand threads on turnbuckle terminals but all threaded terminals at turnbuckles should be inspected at the following locations:

Control Cable Circuit Location Number of turn-Buckles

1. Base of control column. 2 Ailerons 2. Outboard wing inspection panels. 4 Elevators 3. Hatch on underside of rear fuselage. 2 Rudder 4. Rear fuselage interior. 2

Damaged or defective cables must be replaced.

If any evidence of defects is found, de Havilland will supply replacement cables.

The FAA concurs in this mandatory action by the Canadian Department of Transport.

(de Havilland Technical News Sheet Series B, No. 76 dated June 23, 1954, available from de Havilland Aircraft of Canada, Limited, Postal Station "L," Toronto, Canada, covers this same subject.)