# SAIB CE-00-08: 

- Type: Special airworthiness information bulletin (advisory, not mandatory)
- Status: Current
- Revision: 0
- Issued: November 15, 1999
- Products: Sukhoi Russia SU-29
- Product type: Aircraft, Small Airplane
- PDF: https://openairdocs.org/files/sha256/dd/d4/ddd403feba8eab048b7236ac5c2530564ef20b17e34039a8bb1d613edd14c6cf
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/689ACFFE902717738625721F0052EBD3.0001
- Page: https://openairdocs.org/saib/CE-00-08

## Text

**SPECIAL**

**AIRWORTHINESS**

**INFORMATION**

**BULLETIN**

**REGULATORY SUPPORT DIVISION P.O. BOX 26460 OKLAHOMA CITY, OKLAHOMA 73125-0460**

U.S. Department of Transportation Federal Aviation Administration

No. CE-00-08 November 15, 1999

SAIB’s are posted on the internet at http://av-info.faa.gov This is issued for informational purposes only and any recommendation for corrective action is not mandatory.

Introduction:

The purpose of this Special Airworthiness Informa tion Bulletin (SAIB) is to advise registered owners/operators of Russian SU-29 model aircraft of the need for an aileron inspection.

Background:

The Small Airplane Directorate of the Federal Avia tion Administration (FAA), has recently received safety information from the National Transportation Safety Bo ard for the Russian Sukhoi SU-29 aerobatic aircraft.

The safety information was the result of a non-fatal acci dent that occurred September 1, 1999, in the United States and subsequent investigation by the NTSB, F AA, and Sukhoi. The accident was the result of an in-flight failure of the right aileron. This inform ation may already have been provided to you from the manufacturer or U.S. dealer. Because the Sukhoi Model SU-29 does not have a U.S. Type Certificate, the FAA does not plan to issue an Airworthiness Directive.

Recommendation:

The manufacturer is recommending the following actions. The FAA is also recommending that these actions be followed by the operators of these aircraft. The fo llowing information is taken from an NTSB letter to the Interstate Aviation Committee in Moscow which is respons ible for the aircraft type design. For all SU-29 aircraft with flight time of more than 200 hours, and all SU-29 aircraft manufactured between 1992 and 1995, inspections and corrective actions should be accomplished which include:

a. Inspect for cracks at the trailing edge of the aile ron in the wood spar. If any cracks are found, it is recommended that the aileron be replaced before further flight.

b. Inspect for evidence of any movement at the a ttachment point aerodynamic compensators (spades) at the ailerons. If any movement is found, it is reco mmended that the ailerons be replaced before further flight.

c. Inspect the bottom of the inboard aileron su rface for cracks at the actuator arm attachment bellcrank. If any cracks are found, it is recommended that the aileron be replaced before further flight.

d. Check the aileron deflection for maximum travel of 28 degrees up and down, plus or minus one degree. If travel deflection exceeds this maximum travel, check and adjust the aileron stops located below the aft cockpit floor. If no abnormal deflections are f ound, it is recommended that aerodynamic compensator modifications be installed before further flight.

The above inspections are also recommended during any normal maintenance.

Note: Each time the ailerons are replaced, the aileron travel and aileron stops should be checked and adjusted, if necessary.

For Further Information Contact:

Roman T. Gabrys, Aerospace Engineer, FAA, Small Airplane Directorate, 901 Locust, Kansas City, Missouri, 64106; telephone: (816) 329-4141; Fax: (816) 329-4090; email: roman.gabrys@faa.gov.

U.S. Department of Transportation

Federal Aviation Administration

Regulatory Support Division P.O. Box 26460 Oklahoma City, OK 73125-0460 AFS-610

Official Business Penalty for Private Use $300

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.