# AD 59-22-02: Flap-Aileron Clearance

- Type: Airworthiness directive
- Status: Current
- Products: Vickers-Armstrongs Viscount 810
- Superseded by: Nothing supersedes this AD
- Product type: Aircraft, Large airplane
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/57929D07BCE0FF2B8625699A00653160.0001
- DRS record last changed: May 30, 2024
- Page: https://openairdocs.org/ad/59-22-02

## The airworthiness directive

59-22-02 VICKERS: Applies to All Viscount 810 Series Aircraft Which Do Not Embody Modification FG.1447.

Compliance required as indicated.

Service experience has shown that a gap of less than 0.25 inch between the end of No. 3 flap and the aileron may, under certain flight conditions, produce a condition where the flap could foul or contact the inboard end of the aileron (port and starboard wings). Within the next 500 flight-hours but not later than December 15, 1959, inspect for adequate clearance between the outboard end of the No. 3 flap at the No. 4 flap beam unit and the inboard end of the aileron on both the right and left sides. This inspection must also be carried out whenever a flap or an aileron is installed. Where the gap is found to be less than 0.25 inch the outboard end of the No. 3 flap must be modified to provide proper clearance.

(Vickers-Armstrongs PTL No. 80 (800/810 Series) and Modification FG.1447 cover the same subject.)

## Affected data sheets (1) (OpenAirDocs)

The type certificate data sheets whose models the AD names.

- [TCDS A-814](https://openairdocs.org/tcds/A-814): Vickers-Armstrongs (Aircraft Limited); names 1 of 3 models: Viscount 810

## Registered aircraft it may apply to (OpenAirDocs)

No registered aircraft matched the models it names.

Its text cites no advisory circulars or STCs.

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