# AD 80-07-10: Engine Operating Condition

- Type: Airworthiness directive
- Status: Current
- Products: Agusta A109A and A109A II
- Effective: March 27, 1980
- Superseded by: Nothing supersedes this AD
- Product type: Aircraft, Rotorcraft
- Amendment: 39-3714
- Registered aircraft: 23 may be affected, by airframe or engine model (OpenAirDocs)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/616E20EC786C3AF486256A4E0050FB7F.0001
- DRS record last changed: May 30, 2024
- Page: https://openairdocs.org/ad/80-07-10

## The airworthiness directive

80-07-10 COSTRUZIONI AERONAUTICHE GIOVANNI AGUSTA: Amendment 39- 3714. Applies to A109A helicopters, certificated in all categories.

Compliance is required within the next 100 hours time in service after the effective date of this AD, unless already accomplished.

To prevent ambiguous or incorrect indication of engine operating condition, accomplish the following:

  (a) For those helicopters that have engine failure indicator, P/N 109-0729-22-3, installed, replace the engine failure indicator, P/N 109-0729-22-3, with a new indicator, P/N 109- 0729-22-5, and incorporate temporary pages in the Rotorcraft Flight Manual, in accordance with Agusta Bollettino Tecnico No. 109-9, dated February 23, 1978 or an equivalent approved by the Chief, Aircraft Certification Staff, AEU-100, FAA, Europe, Africa, and Middle East Region.

  (b) For those helicopters that have engine failure indicator, P/N 109-0729-22-5, installed, unless already accomplished, incorporate temporary pagesin the Rotorcraft Flight Manual, in accordance with Agusta Bollettino Tecnico No. 109-9, dated February 23, 1978 or an equivalent approved by the Chief, Aircraft Certification Staff, FAA, Europe, Africa, and Middle East Region.

  (c) If a Rotorcraft Flight Manual includes permanent pages which incorporate the material on temporary pages 3-5 required by paragraphs (a) and (b) of this AD, the temporary pages need not be incorporated.

This amendment becomes effective March 27, 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/80-07-10/models.md
Every aircraft: https://openairdocs.org/ad/80-07-10/aircraft.md

Its text cites no advisory circulars or STCs.

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