SAIB CE-06-23

SPECIAL AIRWORTHINESS

INFORMATION BULLETIN

Aircraft Certification Service Washington, DC

U.S. Department of Transportation Federal Aviation Administration

CE-06-23 January 25, 2006 http://www.faa.gov/aircraft/safety/alerts/SAIB This is information only. Recommendations aren’t mandatory.

Introduction

This Special Airworthiness Information Bulletin alerts you, owners and operators of Slingsby T67A, T67B, T67C Series, T67M, T67M-MkII, T67M200, T67M260, and T67M260-T3A airplanes, of an airworthiness concern.

Background

We have received a case report of exfoliation (layer corrosion) in the following positions on a T67A airplane: forward tailplane attachment brackets, flap centre drive brackets, and seat belt attachment brackets. This particular airplane had been grounded for a period of time prior to re-activation.

An additional case has recently been reported of exfoliation on the tailplane-mounted fuselage to tailplane aft attachment brackets on a T67C airplane.

Slingsby issued Service Bulletin (SB) No.

127, Issue 3, dated October 7, 2004. This SB deletes classification, original paragraph 3 in its entirety, and original paragraph 4 ii. The paragraphs are renumbered accordingly.

Recommendation

We are recommending that you inspect for exfoliation (layer corrosion) in the forward tailplane attachment brackets, flap centre drive brackets, and seat belt attachment brackets at the next annual inspection. You should refer to Slingsby’s SB No. 127, Issue 3, for inspection instructions.

For Further Information Contact

Gunnar Berg, Aerospace Engineer, FAA Small Airplane Directorate, ACE-112, 901 Locust, Room 301, Kansas City, MO 64106; phone:

(816)-329-4141; fax: (816)-329-4090.

For Service Bulletins Contact

Slingsby Aviation Ltd., Kirkbymoorside, York, United Kingdom, YO62 6EZ; phone:

01751 432474; fax: 01751 431173; email:

SAL5@Slingsby.co.uk