# AD 93-10-11: Wing Spar - Type: Airworthiness directive - Status: Historical - Products: APEX CAP 10 B - Effective: July 23, 1993 - Superseded by: [AD 98-12-10](https://openairdocs.org/ad/98-12-10) - Product type: Aircraft, Small airplane - Amendment: 39-8592 - Docket: 92-CE-20-AD - Registered aircraft: 22 may be affected, by airframe or engine model (OpenAirDocs) - FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/3161C8469DE2DE3086256A4900707D0E.0001 - DRS record last changed: August 7, 2025 - Page: https://openairdocs.org/ad/93-10-11 ## The airworthiness directive 93-10-11 AVIONS MUDRY & CIE: Amendment 39-8592. Docket 92-CE-20-AD. Supersedes AD 80-24-51, Amendment 39-4119 which superseded AD T80-17-51. Applicability: Model CAP 10B airplanes (all serial numbers), certificated in any category. Compliance: Required as indicated, unless already accomplished. To prevent fatigue failure of the wing spar, which could lead to loss of control of the airplane, accomplish the following: (a) For airplanes having a serial number of 263 or lower, within the next 100 hours TIS, install a permanent inspection opening in the wing in accordance with the Technical Instructions section of Avions Mudry & Cie Service Bulletin (SB) CAP10B No. 16 (ATA 57-004), dated April 27, 1992. NOTE 1: The installation specified in paragraph (a) of this AD is incorporated during production for airplanes having a serial number of 264 or higher. (b) For all serial number airplanes, within the next 100 hours TIS and thereafter at intervals not to exceed1,000 hours TIS, inspect the upper and lower wing spar caps for cracks in accordance with the Technical Instructions section of Avions Mudry & Cie SB CAP10B No. 15 (ATA 57-003), dated April 14, 1992. If cracks are found, prior to further flight, obtain a repair scheme from the manufacturer through the Manager, Brussels Aircraft Certification Office, at the address specified in paragraph (d) of this AD, and incorporate this repair scheme. (c) Special flight permits may be issued in accordance with FAR 21.197 and 21.199 to operate the airplane to a location where the requirements of this AD can be accomplished. (d) An alternative method of compliance or adjustment of the initial or repetitive compliance times that provides an equivalent level of safety may be approved by the Manager, Brussels Aircraft Certification Office, FAA, Europe, Africa, and Middle East Office, c/o American Embassy, B-1000 Brussels, Belgium. The request shall be forwarded through an appropriate FAA Maintenance Inspector, who may add comments and then send it to the Manager, Brussels Aircraft Certification Office. NOTE 2: Information concerning the existence of approved alternative methods of compliance with this AD, if any, may be obtained from the Brussels Aircraft Certification Office. (e) The inspections and installation required by this AD shall be done in accordance with Avions Mudry & Cie Service Bulletin CAP10B No. 15 (ATA 57-003), dated April 14, 1992, and Avions Mudry & Cie Service Bulletin CAP10B No. 16 (ATA 57-004), dated April 27, 1992. This incorporation by reference was approved by the Director of the Federal Register in accordance with 5 U.S.C. 552(a) and 1 CFR Part 51. Copies may be obtained from Avions Mudry & Cie, B.P. 214, 27300 Bernay, France. Copies may be inspected at the FAA, Office of the Assistant Chief Counsel, Room 1558, 601 E. 12th Street, Kansas City, Missouri, or at the Office of the Federal Register, 800 North Capitol Street, NW, suite 700, Washington, DC. (f) This amendment (39-8592) supersedes AD 80-24-51, Amendment 39-4119 which superseded AD T80-17-51. (g) This amendment becomes effective on July 23, 1993. ## Affected data sheets (1) (OpenAirDocs) The type certificate data sheets whose models the AD names. - [TCDS A36EU](https://openairdocs.org/tcds/A36EU): CEAPR; names 1 of 1 models: CAP 10 B ## Registered aircraft it may apply to (OpenAirDocs) Matched by airframe and engine model; the AD's applicability may narrow it by serial number, part number or equipment. - Aircraft: 22 (22 by airframe model, 0 by engine model) - Makers: Avions Mudry ET Cie 22 Models with the most aircraft: - [Avions Mudry ET Cie CAP 10B](https://openairdocs.org/model/avions-mudry-et-cie-cap-10b): 22 aircraft (airframe model) All 1 models: https://openairdocs.org/ad/93-10-11/models.md Every aircraft: https://openairdocs.org/ad/93-10-11/aircraft.md ## Related documents - [AD 98-12-10](https://openairdocs.org/ad/98-12-10) (historical): Wing Main Spar · APEX CAP 10 B. Effective Jul 17, 1998. Supersedes this AD Its text cites no advisory circulars or STCs. ## NTSB investigations that cite this AD (1) From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. - [NTSB FTW03LA173](https://openairdocs.org/ntsb/FTW03LA173), Jun 14, 2003: Apex CAP 10B (N80DD), Gladewater, TX, destroyed, 1 fatal. Probable cause: The failure of the left wing, which resulted from progressive compressive fractures in the upper wooden spar cap. Contributing the accident was the difficulty in performing adequate inspections of… --- 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.