# SAIB ACE-99-24: 

- Type: Special airworthiness information bulletin (advisory, not mandatory)
- Status: Current
- Revision: 0
- Issued: June 29, 1999
- Products: de Havilland DH 80A Puss Moth, DH 82A Tiger Moth and DH 83 Fox Moth
- Product type: Aircraft, Small Airplane
- PDF: https://openairdocs.org/files/sha256/1f/a4/1fa43e63bc806aa14fddab34d13b02f19ccc307817d38b7575795453dd1cca1a
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/88AE7DE08FF431038625721F0052EC34.0001
- Page: https://openairdocs.org/saib/ACE-99-24

## Text

**SPECIAL**

**AIRWORTHINESS**

**INFORMATION**

**BULLETIN**

**AIRCRAFT CERTIFICATION SERVICE 800 INDEPENDENCE AVENUE, S.W.**

**WASHINGTON, DC 20591**

U.S. Department of Transportation Federal Aviation Administration

No. ACE-99-24 June 29, 1999

Published by: FAA, AFS-610, P.O. Box 26460, Oklahoma City, OK 73125 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 inform registered owners/operators of De Havilland DH 80A Puss Moth, DH 82A Tiger Moth and DH 83 Fox Moth aircraft of the availability of British Aerospace Technical News Sheet CT(MOTH) No. 33, Issue 1, which provides information concerning the inspection of the cockpit restraint systems used in these aircraft.

Background:

British Aerospace reports that in the impact of a recent accident, the forward cockpit shoulder harness right restraint cable and rear cockpit shoul der harness restraint cable failed and one of the lap straps tore through near a stitched joint. A subsequent inspection revealed the safety harness webbing had deteriorated to approximately 50 to 75% of its original strength due to aging. The investigators also found that the safety harness in the aircraft were designed to be used in conjunction with a military type seat pack parachute and if not used in this manner, would not meet the required design load criteria.

Recommendation:

The FAA is recommending, but not requiring, that owners/operators of De Havilland DH 80A, and DH 83 Moth aircraft inspect and maintain the ai rcraft restraint systems as detailed by British Aerospace Technical News Sheet CT(MOTH) No. 33, Issue 1, dated March 1, 1999. Special consideration should be placed on materials that may have deteriorated due to age.

Copies of Technical News Sheet CT(Moth) No. 33, Issue 1 can be obtained from British Aerospace Military Aircraft and Aerostructures, Ltd., Ch adderton Site, Greengate, Middleton, Manchester, M24 1SA, England. Technical Support may be obt ained from the Engineering Support Manager, Telephone (44) 161-955-8789, or fax (44) 161-955-8798.

For Further Information Contact:

FAA, Small Airplane Directorate, Attention: Mr. Roger P. Chudy, ACE 112, 1201 Walnut, Suite 900, Kansas City, MO 64106, telephone: (816) 426-6934; fax: (816) 426-2169; email:

roger.chudy.faa.gov

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