Door Steward Beech And Piper Main Cabin Door

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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.
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  • 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


Great product so far and a major improvement over the standard Beechcraft closing mechanism. The door closes much more smoothly and wont slam forward or shut. Installed in 2 hours.

David H Verified Purchase


September 8, 2023

Great addition to my PA-23! Works as described. Dont have to worry about the door slamming shut anymore while loading or unloading.

Andrew W Verified Purchase


August 1, 2023

Complete game changer as usual great job by spruce and the product is very nice I installed it on my A36 Bonanza

James O Verified Purchase


February 21, 2023

Took 3 hours to install. Works great. Awesome Spruce provided PDF instructions before purchase so I made sure I had the proper tools to complete the job.

Casey T Verified Purchase


December 27, 2022

Fantastic upgrade to my M35 Bonanza. No more instructing passengers how to unlock the door steward. Works great and exactly as advertised. Install took about two hours after gathering the right tools. Everything needed was in the install kit and super easy to complete the work.

Michael P Verified Purchase


May 18, 2022

Nice product, works well. You must close the door with your hand closer to the bottom latch when closing from outside. It will hold the door full open, even against prop wash. Great for summer.

Gregory B Verified Purchase


January 24, 2022

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


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.

Q: What is the strut load resistance pound weight that it will hold open the door?

28 lbs at near extension

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