SAIB CE-01-39

SPECIAL

AIRWORTHINESS

INFORMATION

BULLETIN Aircraft Certification Service Washington, DC U.S. Department of Transportation Federal Aviation Administration No. CE-01-39 August 30, 2001 We post SAIBs on the internet at "av-info.faa.gov" This is information only. Recommendations are not mandatory.

Introduction This Special Airworthiness Information Bulletin (SAIB) alerts you, an owner or operator of Moravan Z 242L, Z 143L and Z 142C aircraft, that Moravan-Aeroplanes, Inc. has issued Mandatory Service Bulletin (SB) No. Z 242L/34a (No. Z143/21a for Z 143 L aircraft and No. Z142C/16a for Z 142C aircraft) dated January 6, 2000. The SB provides a procedure to avoid possibility of airspeed indicator damage on parked aircraft with static pressure probe plugs installed.

Background Moravan-Aeroplanes, Inc. believes that there is a possibility of airspeed indicator damage during rapid temperature or pressure change on parked aircraft with static pressure probe plugs installed. The Mandatory SB provides a procedure to drill vent holes into the static pressure plugs axis and the stall warning probe plug axis. It also states that you should accomplish this modification as soon as you receive this SB.

Recommendation The FAA highly recommends that you accomplish this SB to avoid possible airspeed indicator damage.

For Further Information Contact Doug Rudolph, FAA, Small Airplane Directorate, ACE 112, 901 Locust, Room 301, Kansas City, MO 64106; telephone (816) 329-4059; fax (816) 329-4090 Copies of Moravan Mandatory Service Bulletin Z 242L/34a Z 143L/21a Z 142C/16a can be obtained from: Moravan- Aeroplanes, Inc., ZLIN Service, 765 81 Otrokovice, Czech Republic; telephone: +420/67/767 3940; fax: +420/67/792 2103