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-   -   Ameri-King ELT (https://vansairforce.net/community/showthread.php?t=145274)

n82rb 12-30-2016 07:23 PM

Quote:

Originally Posted by Canadian_JOY (Post 1137867)
As a follow-up, here's the applicable paragraph from the Ameri-King manual. This makes it pretty clear - only the Ameri-King part may be used.

2.5.1 ELT MAIN UNIT BATTERY INSTALLATION AND REPLACEMENT
The Ameri-King Corp. Model AK-451 ELT is designed to use only with Ameri-King lithium battery packages which have been tested per TSOC126 and TSO-C142 requirements.
The use of any other battery will void any warranties of the ELT by Ameri-King Corp. The ELT does not meet the requirements of TSO-C126, TSO -C142, and TSO-C91a or FAR 91.52 if used with any other type of battery.

Additionally, this list shows the components which are required in order to maintain TSO approval of the device:


DOCUMENT NO.: IM-451 Rev. 4, Volume 1 of 2
APPLICABILITY
AK-451-(AF)(AP)(S): Emergency Locator Transmitter ELT,
406/121.5/243.0 MHz with GPS/NAV Position.
AK-451-PLB: Personal Locator Beacon PLB, 406/121.5/243 MHz
with external GPS/NAV Position.
451017-1B: Antenna, Whip type, General Aviation aircraft, 250 knots.
451017-2A: Antenna, Rod type, Business Jet aircraft, 350 knots.
451017-3A: Antenna, Blade type, Transport, 1.0 mach.
451017-4S: Antenna, Whip Portable type, 250 knots.
4500010-1: Battery Package, Lithium, LiMnO2, 90 Hrs Lasting.
4500010-2: Battery Package, Lithium, LiSO2, 87 Hrs Lasting.
4500010-3: Battery Package, Lithium, LiMnO2, 92 Hrs Lasting.

far 91.207 states:
Sec. 91.207

Emergency locator transmitters.

(a) Except as provided in paragraphs (e) and (f) of this section, no person may operate a U.S.-registered civil airplane unless--
(1) There is attached to the airplane an approved automatic type emergency locator transmitter that is in operable condition for the following operations, except that after June 21, 1995, an emergency locator transmitter that meets the requirements of TSO-C91 may not be used for new installations:

what makes a ELT approved? the TSO.
so, since the manual states the the battery used must be ameri-king part number .... and that manual is FAA approved then just using like cells is NOT legal.

how will the FAA know, they can do basic math. if they pulled the tso on a certain date then they can figure when ALL battery packs that were made will be out of date. after that date, any elt found in use will be illegal.

pretty easy for them to issue a violation if its well past the date that any approved batteries that were available no longer have any life left.

sorry, twist it any way you want, replacing just the cells is NOT legal.

bob burns
Rv-4 N82RB

flyboy1963 12-30-2016 07:27 PM

one more data point.....
 
I had the 121.5 AK ELT....

it happily passed the self test every year, and I dutifully put in batch after batch of fresh Duracell D batteries.....until I actually had my avionics guy do a proper test cel run..
it failed miserably! putting out about 1/10th the rated power, ( great if you get lost..in your back yard!)

probably part of the reason why AK had their ticket pulled.
Don't think your little orange box is just fine 'cause you put batteries in it and it goes 'beep....beep....beep'

n82rb 12-30-2016 07:28 PM

Quote:

Originally Posted by rv7charlie (Post 1137882)
What's on the battery case for the 406 elt, the model/part number from Ameri-King? If so, the case is the TSO'd part, right? After all, the 'guts' are sourced from an outside vendor, just like the nuts & bolts in a Cessna. Do you have to buy nuts & bolts from Cessna for the plane to keep its type cert when you replace them?

Charlie
That's my story, & I'm sticking with it (since I don't own a 406 MHZ ELT). :-)

but the guts are not TSO'ed, the unit as a whole is and the FAA approved manual states that the battery pack number xxxxx must be use for the TSO to be valid, therefore, the unit to still be approved.

bob burns
RV-4 N82RB


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