Backcountry Pilot • Cessna AD 72-07-09 CRACKS,LOOSE BOLTS IN FIN + RUDDER

Cessna AD 72-07-09 CRACKS,LOOSE BOLTS IN FIN + RUDDER

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Mon May 07, 2018 5:50 pm

Re: Cessna AD 72-07-09 CRACKS,LOOSE BOLTS IN FIN + RUDDER

Hey Pete. I didnt know this was an AD, but it's something we always check at annual inspections. I've never found a cracked or loose one yet.
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Tue May 08, 2018 7:14 am

Re: Cessna AD 72-07-09 CRACKS,LOOSE BOLTS IN FIN + RUDDER

I remember my friend telling me he bought an old Cessna Ag Wagon and it had a vertical fin that wobbled side ways.
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Tue May 08, 2018 9:04 am

Re: Cessna AD 72-07-09 CRACKS,LOOSE BOLTS IN FIN + RUDDER



Did you actually read the AD? It pretty much spells out the inspection procedure.
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Tue May 08, 2018 5:41 pm

Re: Cessna AD 72-07-09 CRACKS,LOOSE BOLTS IN FIN + RUDDER

hotrod180 wrote:


Did you actually read the AD? It pretty much spells out the inspection procedure.
No need to be a jerk Eric. He just asked a question to those of us that have experience. Ya the AD spells it out, but sometimes theres other info from people that have been there done that. If you dont know, then dont answer. Especially with a smart ass comment like that...
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Tue May 08, 2018 8:19 pm

Re: Cessna AD 72-07-09 CRACKS,LOOSE BOLTS IN FIN + RUDDER

I've probably replaced at least a dozen rear bulkheads in the past 30 some years. I got to where I just pull the bolts and do the dye-pen anyway and have found more problems that way. I'd rather find them then, than later.
John
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Tue May 08, 2018 8:36 pm

Re: Cessna AD 72-07-09 CRACKS,LOOSE BOLTS IN FIN + RUDDER

hardtailjohn wrote:I've probably replaced at least a dozen rear bulkheads in the past 30 some years. I got to where I just pull the bolts and do the dye-pen anyway and have found more problems that way. I'd rather find them then, than later.
John
Do you do it every year? Or at a certain hr count?

Thanks
David
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Wed May 09, 2018 9:21 am

Re: Cessna AD 72-07-09 CRACKS,LOOSE BOLTS IN FIN + RUDDER

A1Skinner wrote:
hotrod180 wrote:Did you actually read the AD? It pretty much spells out the inspection procedure.
No need to be a jerk Eric. He just asked a question to those of us that have experience. Ya the AD spells it out, but sometimes theres other info from people that have been there done that. If you dont know, then dont answer. Especially with a smart ass comment like that...


The OP sounded like he hadn't read the AD:
"how one does the inspection of it? can it simply be a visual?"
The AD spells out the inspection, and answers that question.
Maybe "I read the AD-- anyone have tips"?" would been more appropriate.
Anyway, didn't mean to be a smartass or a jerk. Sorry. :oops:
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Wed May 09, 2018 5:28 pm

Re: Cessna AD 72-07-09 CRACKS,LOOSE BOLTS IN FIN + RUDDER

A1Skinner wrote:
hardtailjohn wrote:I've probably replaced at least a dozen rear bulkheads in the past 30 some years. I got to where I just pull the bolts and do the dye-pen anyway and have found more problems that way. I'd rather find them then, than later.
John
Do you do it every year? Or at a certain hr count?

Thanks
David



"To detect cracks and bolt looseness which could lead to inflight separation of the fin and rudder, within the next 50 hours' time in service after the effective date of this AD on all airplanes with 1000 or more hours' time in service, and thereafter at intervals not to exceed 1000 hours', except that 206 series airplanes with the floatplane vertical stabilizer are to be inspected initially at 500 hours and at 500 hour intervals thereafter, accomplish the following: "
It's a known "bad" area so it gets a bit of extra scrutiny at each inspection interval. We had 182's on fire patrol (in some pretty good turbulence) that were getting a 100 hour inspection every 10th day and even a bit more often sometimes (wasn't uncommon to fly sunup to sundown, 7 days a week)...I really got sick of looking at it every week or 2, but would rather find it then than later! We never had to ream any holes, but replaced some bulkheads. I got in the habit of putting a wrench on the bolts and giving them a twist to make sure they were still tight as well as all the other required inspection.
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Wed May 09, 2018 5:42 pm

Re: Cessna AD 72-07-09 CRACKS,LOOSE BOLTS IN FIN + RUDDER

Thanks. I was curious if you did it more then the regular intervals per the stc.
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Sat May 12, 2018 1:00 am

Re: Cessna AD 72-07-09 CRACKS,LOOSE BOLTS IN FIN + RUDDER

hardtailjohn wrote:[
"To detect cracks and bolt looseness which could lead to inflight separation of the fin and rudder, within the next 50 hours' time in service after the effective date of this AD on all airplanes with 1000 or more hours' time in service, and thereafter at intervals not to exceed 1000 hours', except that 206 series airplanes with the floatplane vertical stabilizer are to be inspected initially at 500 hours and at 500 hour intervals thereafter, accomplish the following: "
It's a known "bad" area so it gets a bit of extra scrutiny at each inspection interval. We had 182's on fire patrol (in some pretty good turbulence) that were getting a 100 hour inspection every 10th day and even a bit more often sometimes (wasn't uncommon to fly sunup to sundown, 7 days a week)...I really got sick of looking at it every week or 2, but would rather find it then than later! We never had to ream any holes, but replaced some bulkheads. I got in the habit of putting a wrench on the bolts and giving them a twist to make sure they were still tight as well as all the other required inspection.


Glad you're still bumming around these parts, John. You've been here longer than nearly anyone, and always a helpful post. Thanks.
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Sat May 12, 2018 9:49 am

Re: Cessna AD 72-07-09 CRACKS,LOOSE BOLTS IN FIN + RUDDER

Our 206 had the bulkhead replaced already but the little angle brackets were cracked. Still a pretty good amount of work to replace.

The fellow here that has done a bunch of work for the air taxis has replaced darn near every bulkhead on the field. The last one was on a 182. Pilot dragged the tail and cracked the bulkhead where the tie down loop attaches. That and some flap work yielded an $8K annual. [emoji15]
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Sat May 12, 2018 8:14 pm

Re: Cessna AD 72-07-09 CRACKS,LOOSE BOLTS IN FIN + RUDDER

Zzz wrote:
Glad you're still bumming around these parts, John. You've been here longer than nearly anyone, and always a helpful post. Thanks.


Thanks Zzz.... still lurking around, just being quiet and behaving.....I must be getting old! ;)
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Sun May 13, 2018 7:31 pm

Re: Cessna AD 72-07-09 CRACKS,LOOSE BOLTS IN FIN + RUDDER

There’s a STC fix for dragging the tail and ruining the bulkhead.
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