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20 Jan 2018, 20:45 [ UTC - 5; DST ]


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 Post subject: GNS-430 AFMS
PostPosted: 15 Dec 2017, 13:40 
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Joined: 03/01/10
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Company: Direct Avionics
I'm installing a GNS-430 non WAAS in an aircraft. My avionics inspector will not approve the AFMS and states it must be approved at ACO. It's been quite a few years since I did a GPS install that isn't STC'd and this inspector has no experience with this process. I'm looking for regulatory guidance that instructs inspectors on how to approve a GPS AFMS.


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 Post subject: Re: GNS-430 AFMS
PostPosted: 15 Dec 2017, 14:29 
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Joined: 11/13/12
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Aircraft: Baron 58
TECHNICAL PAPER
AFS-360-2014-2
(Rev 2a 04/15/2015)
FIELD APPROVAL OF GLOBAL POSITIONING SYSTEMS (GPS) OR GPS WITH WIDE AREA AUGMENTATION SYSTEMS (GPS-WAAS), ALSO REFERRED TO AS GLOBAL NAVIGATION SATELLITE SYSTEMS (GNSS) EQUIPMENT


1. PURPOSE: This paper provides guidance for a qualified aviation safety inspector (ASI) to perform field approvals of the installation and operational use of global positioning system (GPS) or GPS with wide area augmentation system (GPS/WAAS) equipment.

2. REFERENCES:
a. FAA Order 8300.16, Major Repair and Alteration Data Approval - provides the policy for data approvals for major repairs and alterations.
b. Major Repair and Alteration Data Approval Job Aid - provides guidance applicable to other specific systems.
c. FAA Advisory Circular (AC) 20-138, Airworthiness Approval of Positioning and Navigation Systems - airworthiness approval of global navigation satellite system (GNSS) Equipment.
d. FAA AC 43-210, Standardized Procedures for Requesting Field Approval of Data, Major Alterations, and Repairs – provides standardized procedures for requesting field approval of data, major alterations, and repairs.

3. ACTION:
a. Field Approval Authority. ASIs are authorized to field approve GPS or GPS/WAAS alterations previously approved by a type certificate (TC) or supplemental type certificate (STC) in a similar installation. See the GPS/WAAS Alteration Decision Tree. ASIs are also authorized to review and approve associated Airplane Flight Manual Supplements (AFMS)/Rotorcraft Flight Manual Supplement (RFMS).


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 Post subject: Re: GNS-430 AFMS
PostPosted: 15 Dec 2017, 14:39 
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Joined: 04/28/12
Posts: 2574
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Location: Kansas City, MO (KMKC)
Aircraft: 1954 Twin Bonanza
Username Protected wrote:
I'm installing a GNS-430 non WAAS in an aircraft. My avionics inspector will not approve the AFMS and states it must be approved at ACO. It's been quite a few years since I did a GPS install that isn't STC'd and this inspector has no experience with this process. I'm looking for regulatory guidance that instructs inspectors on how to approve a GPS AFMS.


I recently (8 months or so) did a field-approved GPS install in my Twin Bonanza. As William pointed out, the ASIs can sign Flight Manual Supplements for GPS installs and the one assigned to my install did sign it. But my G5 AFMS (done under a field approval) did have to go to the ACO for signature, as ASIs aren't given authority to sign those.

_________________
CFII/MEI


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 Post subject: Re: GNS-430 AFMS
PostPosted: 15 Dec 2017, 16:04 
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Joined: 03/01/10
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Company: Direct Avionics
That is exactly what I was looking for. Thanx


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 Post subject: Re: GNS-430 AFMS
PostPosted: 15 Dec 2017, 16:44 
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Joined: 08/24/13
Posts: 902
Post Likes: +210
Company: Satcom Direct Avionics
Location: KSMQ New Jersey
Aircraft: Socata Trinidad TB20
Username Protected wrote:
That is exactly what I was looking for. Thanx


Doesn't the inspector need to go to one of the FAA training classes for AFMS approvals? I've seen that in the past, where a new inspector just wasn't trained yet. but I've also seen them pull that card to get out of doing it......


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