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Part# 05-03574
MFR Model# B40C10-12


The Door Steward is an STC and FAA-PMA approved modification for aircraft doors. This installation kit contains all the components for either one B40C10-1 installation applicable to Beech and Piper Main entry cabin doors listed below. It is also applicable to Beech small baggage doors (20 wide) and the oversize baggage doors (38.5 wide) on Beech models listed below. Or one B40C10-2 installation applicable to the rear passenger door on the PA32 or PA34 aircraft. The B40C10-12 Installation kit does not contain two installation kits, but is suitable for one of either B40C10-1 or B40C10-2. Neither installation fits the split rear doors on the Beechcraft A36, B36TC, G36, B58.


  • With the Door Steward the door will open and stay open when needed
  • No more door flopping around in wind gusts or prop wash from taxiing aircraft
  • The cost is usually much less than repairing or replacing existing OEM door stops
  • Great on float equipped aircraft when water taxiing.
  • FAA Approved on many single and light twins.


  • Fits Beech model Series 33, 35, 36, 55, 56, 58 and 95
  • Fits Piper Model Series 23, 24, 28, 30, 32, 34, 39, 40 and 44
  • Accessories
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Easy to install

Jerry F Verified Purchase


July 2, 2021

Great product. From the complete kit with more than you need for your install to a perfect explained and pictured instructions. Often times you have to read the engineers mind to decipher the IKEA like instructions provided with a product. Not on this one! Our customers loved it.

98x, L
May 7, 2021

Works great on my 1972 Piper Cherokee 180. Easy to install (though I messed up on some riveting and needed an education on how to remove a CherryMax rivet - those things are NOT falling out!). Not counting my installation mistake, it took about 2 hours to install working slowly. It holds up to prop wash taxi’ing on a hot day and is no problem to close.

Edward H
May 9, 2020

Works great!! Simple instructions! Easy install!

Classic A
June 27, 2019

I purchased the door steward after a taxing plane ripped the factory catch off the door. We just installed it, and im already in love. The door is so smooth, and taxing planes shouldnt be a problem any longer!

Travis W
February 12, 2019

5 stars so far. Tired of dealing with the aging support rod on my Beechcraft and worried about gust of wind damage with original one on the plane.

February 11, 2019

This door steward is great for your Beechcraft in at least 2 ways. It will reduce The possibility of a broken lower door hinge since it will help to slow the door opening by a strong wind. And, it is much more convenient to use

Bill B
December 14, 2017

What a great solution to a problematic door hold open rod. I have just installed a new unit on a Beech Debonair and it was very straight forward. I have also installed the units on a Cessna 175-no problem.

Ken H
June 26, 2017

This is very likely the best Bonanza mod ever offered. The Bonanza cabin door/ rod combination has always been a weak engineering point. The Door Steward fixes that problem completely. Id give it 10 stars if that rating was available. Install is a simple 2 hour job for the experienced. Would make this mod a first fix to any Bonanza I purchase. Beech should make the Door Steward standard equipment.

Ed L
February 25, 2017

I love this product!! I look around at STCs all the time for my Lance, and most of them I shy away from. This one works fantastic, and was economical to buy. Couldnt imagine going back to the old system now. Looking into adding it to the back door. I ordered the Door Steward because my rickety old factory door bracket finally gave up. Ive always wanted one, but never got around to it until the broken bracket thing forced my hand. This is a great product. I highly recommend it.

Jeff L
July 21, 2016


Please note, Aircraft Spruce's personnel are not certified aircraft mechanics and can only provide general support and ideas, which should not be relied upon or implemented in lieu of consulting an A&P or other qualified technician. Aircraft Spruce assumes no responsibility or liability for any issue or problem which may arise from any repair, modification or other work done from this knowledge base. Any product eligibility information provided here is based on general application guides and we recommend always referring to your specific aircraft parts manual, the parts manufacturer or consulting with a qualified mechanic.

Q: Can this product also be installed on the LH Cabin Door, or only the RH Forward Cabin Door?

This product is suitable for all Beech and Piper Main entry cabin doors on the series models listed under the Applications tab.

Q: Does the purchase include the STC or is it just the part alone?

The paperwork is not in the box. These are STC and PMA'd. The STC is available under the documents tab on our website.

Q: Does the DOOR STEWARD installation have to be inspected by an I.A. upon completion?

This would require a 337 and IA signature per the instructions.

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