# AD 76-09-10: Aileron Control System

- Type: Airworthiness directive
- Status: Current
- Products: Schempp-Hirth Flugzeugbau Standard-Cirrus
- Effective: May 20, 1976
- Superseded by: Nothing supersedes this AD
- Product type: Aircraft, Glider
- Amendment: 39-2602
- Registered aircraft: 65 may be affected, by airframe or engine model (OpenAirDocs)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/629B2E4294741F0786256A38005B1BDF.0001
- DRS record last changed: May 30, 2024
- Page: https://openairdocs.org/ad/76-09-10

## The airworthiness directive

76-09-10 SCHEMPP HIRTH and BURKHART GROB: Amendment 39-2602. Applies to Standard Cirrus gliders, certificated in all categories, serial numbers 1 through 510, 528, and 529 for Schempp Hirth gliders and serial numbers 1G through 544G for Burkhart Grob gliders.

Compliance is required within the next 100 flights after the effective date of this AD, unless already accomplished.

To prevent possible jamming of the aileron control system and consequent loss of roll control, accomplish the following:

  (a) Install an SAE 1024 steel safety brace in the fuselage frame between the airbrake lever bearing and the left diagonal strut in accordance with Step 2 of the paragraph entitled "Instructions" of Schempp Hirth Technical Note 278-17, dated December 8, 1975, or an FAA- approved equivalent.

  (b) For the purpose of this AD, a flight is a sequence consisting of a takeoff operation and landing.

This amendment becomes effective May 20, 1976.

## Affected data sheets (1) (OpenAirDocs)

The type certificate data sheets whose models the AD names.

- [TCDS G23EU](https://openairdocs.org/tcds/G23EU): Schempp-Hirth Flugzeugbau GmbH; names 1 of 1 models: Standard-Cirrus

## 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: 65 (65 by airframe model, 0 by engine model)
- Makers: Schempp-Hirth 64, Burkhart Grob Flugzeugbau 1

Models with the most aircraft:

- [Schempp-Hirth STANDARD CIRRUS](https://openairdocs.org/model/schempp-hirth-standard-cirrus): 64 aircraft (airframe model)
- [Burkhart Grob Flugzeugbau STANDARD CIRRUS](https://openairdocs.org/model/burkhart-grob-flugzeugbau-standard-cirrus): 1 aircraft (airframe model)

All 2 models: https://openairdocs.org/ad/76-09-10/models.md
Every aircraft: https://openairdocs.org/ad/76-09-10/aircraft.md

Its text cites no advisory circulars or STCs.

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