SB 1400B inspection panel

Posted In: ADs & ALERTS

Participant

Jay Paschke on June 4, 2026 at 3:30 pm #27433

My PA28-181 1978. 7890530

Keymaster

Kent Dellenbusch on June 3, 2026 at 9:14 pm #27423

In reply to Jay Paschke (#27421)

Thank you Jay-

What year is your PA-28? In case a different year has a different configuration for vents.

K

Participant

Jay Paschke on June 3, 2026 at 7:32 pm #27421

In reply to Jay Paschke (#27370)

Well, it is ez. Borescope camera from cabin to wing thru vent opening puts you into the “air box” between front wing skin and the front of the spar. We got some good pics to determine the condition, all very good BTY.

thanks for everyone’s input,

Jay, new member

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Participant

Jay Paschke on May 29, 2026 at 10:44 pm #27370

In reply to Kent Dellenbusch (#27366)

Thank you Jen & Tom. In looking at the parts manual, neighbor IA (and I) will insert borescope thru forward vents next week. It looks to us that there is an air box fed by the vent in front of wing with a duct feeding the backseat vents. The spar and wing skin made up the air box. It might be really easy— 🤞

sure appreciate your quick reply

jay
Keymaster
Kent Dellenbusch on May 29, 2026 at 10:03 pm #27366
In reply to Jen D (#27365)

Hi Jay,

My friend Tom at Flight Line in Florida has a comment on your inspection question.

Please note – this is an opinion, not a recommendation or approval. Tom is looking into if further for us.

“This is a difficult area to get to . Putting that inspection panel in doesn’t get you to the front side of the spar as the panel is on the aft side.

Some aircraft have a 3/16th inch drain hole on the forward side of the spar (see attached. )If that hole was enlarged slightly to ¼ inch one could snake a borescope in there and get a good look at the fitting .

This isn’t approval to do it but if you had the hole there and you enlarged it , it would be a minor alteration.

I am going to run this past Piper to see if we can get them to add this to the SB as way to inspect the spar..”
- This reply was modified 1 week, 4 days ago by Kent Dellenbusch.
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Keymaster

Jen D on May 29, 2026 at 9:19 pm #27365

In reply to Jay Paschke (#27310)

Hi Jay,

We’re trying to get an answer for you.

Jen

Participant

Jay Paschke on May 27, 2026 at 11:22 pm #27310

Hello fellow Piper guys. New to here, PA28-181. 7890530.
the FAA SB 1400. We have pics of the back side of my forward attach fitting (looks great, no evidence of corrosion), but struggling with inspection of the front side-really struggling.

There is reference to a Piper approved method to drill an inspection hole for borescope inspection. Anyone have the reference of knowledge?

thanks, Jay, frustrated in Texas.

Keymaster

Kent Dellenbusch on May 20, 2026 at 1:47 pm #27280

Yes – AIRWARD has this kit.

HERE is the link ot the Wing Lower Forward Access Cover.

And HERE is SB 1400

Thanks Alan-

Kent

Participant

plane.ia.alan on May 20, 2026 at 1:35 pm #27278

SB 1400B lists an inspection panel kit to install in the wing to get a better look at the front spar attach fitting, it is 88692-701. This might help the older aircraft owners that didn’t have the inspection panel installed originally.