# AD 64-19-04: Emergency Circuits

- Type: Airworthiness directive
- Status: Current
- Products: Kelowna Flightcraft R & D 240 Series
- Effective: September 7, 1964
- Superseded by: Nothing supersedes this AD
- Product type: Aircraft, Large airplane
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/A90E9F37B45831CF862569B30070EEFF.0001
- DRS record last changed: May 30, 2024
- Page: https://openairdocs.org/ad/64-19-04

## The airworthiness directive

64-19-04 GENERAL DYNAMICS: Amdt. 783 Part 507 Federal Register August 7, 1964. Applies to Model 240 Series Aircraft.

Compliance required within 1,000 hours' time in service after the effective date of this AD, unless already accomplished.

A fault in an unprotected cabin supercharger disconnect circuit caused an electrical fire in the cabin pressurization console on the copilot's side. To prevent recurrence of this incident provide the following circuit protection:

Modify the aircraft fire extinguisher circuits, cabin pressure dump solenoid circuit and emergency compressor shutoff valve circuit to provide circuit protection and incorporate an alternate emergency power circuit and a normally-off test light in accordance with Convair Service Engineering Report No. 240-24 dated January 3, 1964, with revision "A" dated March 9, 1964, or an FAA Western Region Engineering approved equivalent.

(Convair Service Engineering Report No. 240-24 pertains to this same subject.)

This directive effective September 7, 1964.

## Affected data sheets (1) (OpenAirDocs)

The type certificate data sheets whose models the AD names.

- [TCDS A-793](https://openairdocs.org/tcds/A-793): Kelowna Flightcraft R & D Ltd.; names 1 of 1 models: 240 Series

## 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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