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THEMA: Landing Light: Conventional or (which) LED?

Landing Light: Conventional or (which) LED? 3 Jahre 9 Monate her #145

  • Spreti
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Hello, together. On my new 1983 201 the landing light doesn`t shine. It's my first plane and so I'm without experience. What do You think about the newer technologies? Should I simply buy a new bulb or is this like riding a dead horse?
Greetings from Munich

Marcus
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Landing Light: Conventional or (which) LED? 3 Jahre 9 Monate her #146

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Hi Markus, first check if power arrives to the landing light: hook up voltmeter and switch the LL on. Maybe there's a continuity problem as the LL bulb's ground is wired somewhere to the firewall and this connection may be oxydized.
If power is there, check continuity in the bulb. If no current passing, discard. I was in same situation and stayed with conventional bulb. You can check function in flight by ammeter reading…..

Andi N51740 (grounded for annual….)
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Landing Light: Conventional or (which) LED? 3 Jahre 8 Monate her #151

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Also whenever the lower cowling is removed it is necessary to disconnect the landing light via a connector located on the right side near the oil filler.....it is possible that someone forgot to reconnect after reinstalling the lower cowling...

In my case I replaced the standard GE Par46 bulb one time and the next time I replaced it with a Whelen Parmetheus Par46 LED unit...

Merry Christmas
Anthony Quick
N60GZ
AnthonyQ M20J 205 N60GZ
(A displaced Australian living in Scotland!)
Letzte Änderung: 3 Jahre 8 Monate her von AnthonyQ.
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Landing Light: Conventional or (which) LED? 3 Jahre 8 Monate her #152

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Hi,
in this case check condition of the contacts in the connector and the ground wire connection to the airframe (oxidation).
On the pr-J airframes the positive landing light wire is bundled to the alternator harness (for cowl removal disconnect at the bulb) and the gnd wire connects to the cowling. Here it may create oxidation leading to landing light not working.
Merry X-mas as well from not-so-warm southern France…..
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Landing Light: Conventional or (which) LED? 3 Jahre 8 Monate her #153

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Thank You for Your answer. I think I will replace the old bulb when it`s over and use a whelen parmetheus46, too.
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Landing Light: Conventional or (which) LED? 3 Jahre 8 Monate her #154

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Hi, Andi.
Naturally there will be nothing better than open up and look what went wrong. I will need a place in a hangar.
With the best wishes for the end of the year.
Marcus
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