# AD 80-22-09: Engine Mount Structure - Type: Airworthiness directive - Status: Current - Products: Agusta A109A and A109A II - Effective: November 6, 1980 - Superseded by: Nothing supersedes this AD - Product type: Aircraft, Rotorcraft - Amendment: 39-3957 - Registered aircraft: 23 may be affected, by airframe or engine model (OpenAirDocs) - FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/46ACD6D3F25C481E86256A4E00510FF6.0001 - DRS record last changed: May 30, 2024 - Page: https://openairdocs.org/ad/80-22-09 ## The airworthiness directive 80-22-09 COSTRUZIONI AERONAUTICHE GIOVANNI AGUSTA: Amendment 39- 3957. Applies to Model A109A series helicopters, certificated in all categories, except for the following serial numbered helicopters: 7107 7119 7142 7150 7109 7128 7143 7152 7110 7132 7144 7158 7113 7138 7145 7160 7114 7140 7148 7166 and subsequent. 7117 Compliance required as indicated, unless already accomplished. To prevent failure of the engine mount structure, accomplish the following: (a) Within the next 25 hours time in service after the effective date of this AD, and thereafter at intervals not to exceed 25 hours time in service since the last inspection, visually inspect the forward mounting tab of the aluminum engine outer lateral fitting, P/N 109-0320-97- 4, for cracks in accordance with "ACCOMPLISHMENT INSTRUCTIONS" of Costruzioni Aeronautiche Giovanni Agusta Service Bulletin No. 109-18, dated April 27, 1979 (hereinafter referren to as the Service Bulletin), or an FAA-approved equivalent. (b) If, as a result of the inspections required in paragraph (a) of this AD, no cracking is found, return the helicopter to service and continue to inspect in accordance with paragraph (a) or comply with paragraph (d) of this AD. (c) If, as a result of any inspection required in paragraph (a) of this AD, cracking is found, before further flight, except as provided in paragraph (e) of this AD, - - (1) Replace the cracked fitting with a serviceable fitting of the same part number and continue to inspect in accordance with paragraph (a) of this AD; or (2) Replace the cracked fitting with a new steel fitting, P/N 109-0320-97-6, or an FAA-approved equivalent. (d) Compliance with the repetitive inspections required by paragraphs (a), (b) and (c)(1) of this AD may be discontinued when a steel fitting, P/N 109-0320-97-6, or an FAA approved equivalent, is installed. (e) In accordance with FAR Sections 21.197 and 21.199, the helicopter may be flown to a base where the maintenance required by this AD may be accomplished. Ferrying of the helicopter with a failed fitting or an engine inoperative is not permitted. (f) If an equivalent means of compliance is used in complying with paragraphs (a), (c)(2) and (d) of this AD, that equivalent means must be approved by the Chief, Aircraft Certification Staff, AEU-100, Europe, Africa and Middle East Office, FAA, c/o American Embassy, Brussels, Belguim. (g) Upon request of an operator, the Chief, Aircraft Certification Staff, Europe, Africa and Middle East Office, may approve an equivalent modification or replacement fitting provided the request is made through an FAA Maintenance Inspector and the request contains substantiating data to justify the request for that operator. This amendment becomes effective November 6, 1980. ## Affected data sheets (1) (OpenAirDocs) The type certificate data sheets whose models the AD names. - [TCDS H7EU](https://openairdocs.org/tcds/H7EU): Leonardo S.p.A.; names 2 of 10 models: A109A, A109A II ## 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: 23 (23 by airframe model, 0 by engine model) - Makers: Agusta 22, Agusta-Bell 1 Models with the most aircraft: - [Agusta A109A II](https://openairdocs.org/model/agusta-a109a-ii): 17 aircraft (airframe model) - [Agusta A109A](https://openairdocs.org/model/agusta-a109a): 5 aircraft (airframe model) - [Agusta-Bell A 109A](https://openairdocs.org/model/agusta-bell-a-109a): 1 aircraft (airframe model) All 3 models: https://openairdocs.org/ad/80-22-09/models.md Every aircraft: https://openairdocs.org/ad/80-22-09/aircraft.md Its text cites no advisory circulars or STCs. --- 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.