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Maybe A Dumb Question...  
User currently offlineCricri From France, joined Oct 1999, 581 posts, RR: 6
Posted (13 years 10 months 4 weeks 3 hours ago) and read 2402 times:

But why do you have an outside light at the exit of the APU? Is it for nightly pre-flight checks or what?

6 replies: All unread, jump to last
User currently offlineIsmangun From Indonesia, joined Jan 2001, 117 posts, RR: 9
Reply 1, posted (13 years 10 months 4 weeks 2 hours ago) and read 2377 times:

I assumed what you are reffering to is position light. (White light on the tip of tailcone just near the apu exhaust?).

If it's an Airbus, I'll take the bus...
User currently offlineSaintsman From United Kingdom, joined Mar 2002, 2065 posts, RR: 2
Reply 2, posted (13 years 10 months 3 weeks 6 days 19 hours ago) and read 2309 times:

The reversing light perhaps?

User currently offlineHAWK21M From India, joined Jan 2001, 31875 posts, RR: 54
Reply 3, posted (13 years 10 months 3 weeks 6 days 4 hours ago) and read 2250 times:

You probably are referring to the Strobe light.

Think of the brighter side!
User currently offlineBio15 From Colombia, joined Mar 2001, 1089 posts, RR: 7
Reply 4, posted (13 years 10 months 3 weeks 2 days 11 hours ago) and read 2116 times:

Try specifying better which light you are referring to. Maybe try a photo on the site.
Are you referring to a 747's APU exhaust?

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Photo © Samuel Lo

If this is the one, it is not for pre-flight cecks. It's for other aircraft telling where's your aircraft's rear end precisely. On dark airports or fogged at night, it can help a lot in telling how much space the surrounding aircraft are filling.


User currently offlinePPGMD From United States of America, joined Sep 2001, 2453 posts, RR: 0
Reply 5, posted (13 years 10 months 3 weeks 2 days 11 hours ago) and read 2106 times:


I can just faintily hear a "beep...beep...beep...beep..." as it is backing away from the gate.  Smile

At worst, you screw up and die.
User currently offline747Teach From United States of America, joined Nov 2000, 176 posts, RR: 1
Reply 6, posted (13 years 10 months 3 weeks 1 day 21 hours ago) and read 2034 times:

Cricri: If it's a 727, it could be an evacuation light. Regards,

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