1 6 JUN 2014

Mr. Pat Mullen

FAA

- Small Airplane Directorate

901 Locust St

Room 301

Kansas City, MO 64106

USA

Dear Mr. Mullen :

SUBJECT: FAR 23.1549(b)

- Exemption No. 10465

– APPLICATION FOR E XTENSION

REFERENCE: FAA Docket Number : FAA

- 2011

- 1345

Further to my letter dated 02 MAY 2013, Viking Air Limited (VAL) and Honeywell International Inc.

(HI) have been diligently working to address compliance with 23.1549(b) for the DHC

- 6 Series 400 to

satisfy the “ Conditions and Limitations ” stated in the subject exemption (attached for your reference)

.

Due to unforeseen program delays with the integration of the Autopilot system on the Series 400, t he

program will not be certified in time to meet the Exemption’s requirement of 31 JUL 2014 for

incorporation in production.

VAL is requesting an additional six

- month extension to the exemption. This would ensure that aircraft

delivered after January 31, 2015 will be fu lly compliant with 23.1549(b), and all aircraft will be

retrofitted within three months from that date (April 30, 2015).

To date, VAL has exported six aircraft to the US , and plan on delivering seven more aircraft this

calendar year. Of these thirteen aircraft, eight require the Autopilot and TCAS II systems. It is expected

to take three weeks per aircraft to incorporate the modifications once they are approved. The aircraft

without the Autopilot and TCAS II systems will require limited modification an d software updates,

which can be completed in less than a week.

All thirteen aircraft are expected to be delivered before VAL has certification at the end of 2014 for the

HI “Phase 2” configuration. Table A shows the aircraft delivery schedule and the air craft awaiting the

upgrades.

Although the number of aircraft affected by Exemption No. 10465 has increased from the original

seven estimated, the number is still relatively small at thirteen, involving three additional customers,

making a total of seven.

I am confident given the current state of the program

, and our impending HI software freeze

, V AL will

be in a position to certify the Phase 2 configuration

, including the outstanding exemption requirement

,

1 of 2by November 2014. The extension request time of 31 JAN 2015 will provide the additional buffer to

ensure no further extension will be required.

This additional time will enable our customers to schedule the incorporation of the exemption’s

terminating action along with their “Phase 2” upgrades into a single maintenance event and keep their

downtime to a minimum.

Honeywell Phase 2

S/N Customer Planned Delivery Autopilot TCAS II

852 US Army Delivered Required Required

862 US Army Delivered Required Required

863 US Army Delivered Required Required

869 DFAIR Delivered Required Required

870 TUDOR Delivered Required Required

876 LOCH ARD Delivered Not Ordered Not Ordered

900 TWIN EXPRESS JUN 2014 Not Ordered Not Ordered

90 1 HILLCOPR JUN 2014 Required Required

90 3 GAL JU L 2014 Required Required

90 4 GAL JU L 2014 Not Ordered Not Ordered

90 5 LOCH ARD AUG 2014 Not Ordered Not Ordered

90 6 LOCH ARD AUG 2014 Not Ordered Not Ordered

9 13 GAL DEC 2014 Required Required

VAL will be conducting certification testing starting August and welcome the FAA to see the green

arcs in person. If you would like to visit us in Victoria, p lease contact the undersigned to set up

arrangements

, or request additional information for this extension

.

Yours truly,

Adam Dennis

, P.Eng.

Manager, Certification Engineer ing

cc.

Jim Rutherford

, FAA

- Small Airplane Directorate

Roger Goossens, TCCA

- Prairie and Northern Region Table A

– US Registered Aircraft Deliveries

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