McFarlane Aviation Products - MC1741-79.5

Part Number: MC1741-79.5

STIFFENER, Flap Trailing Edge

Eligibility Notice

Please verify that this product is eligible for your aircraft before adding it to your cart.

Click here to view product eligibility.
Qty
Approval FAA-PMA
Condition New
Manufacturer McFarlane Aviation, Inc.
Unit of Measure Each
Retail Price $576.58
Your Price $96.19
Stock Status In Stock

Product Details

Please note:

Due to this product's length and required packing material, the estimated freight charge quoted at the time of checkout will not be correct. Additional shipping and crating charges on top of the quoted freight charge will also apply. For an accurate estimate of actual shipping costs, please email your address and preferred ship method to our Shipping department at shipping@mcfarlaneaviation.com.

 

Flap Trailing Edge Stiffener for Cessna Aircraft

New streamline shape and improved fit to reduce stress cracks. 
FAA-PMA Stiffener made of 6061 T6 Aluminum material. 

Logbook entry is all that is required.

 

What is the purpose of a flap trailing edge stiffener?

 

  • Reinforce the flap trailing edge to make it more resilient to hangar rash.
  • Ensure a straight trailing edge. Without a stiffener, the trailing edge tends to have a "wavy" appearance where the top and bottom skin rivet together.
  • Reduce stress in the flap skins and prevent cracks around the rivets. Without a stiffener of the proper shape, the skin must abruptly bend where the top and bottom skins rivet together.
  • Provide a blunt surface, thus preventing diamond shaped cut patterns on the foreheads of pilots and passengers.

 


McFarlane's stiffeners are streamlined and have the correct angle.

 


Original stiffeners deform the skins, resulting in cracks, strain in the corrugation, and stress around the rivet heads.

Early airplanes did not have a stiffener, but it can be added.

 

 

New Improved Fit to Reduce Skin Stress

Our new McFarlane stiffeners are accurately shaped to the same angle that the top and bottom skins come together to completely eliminate the bending stress due to riveting the skins together. This prevents stress concentration in the skin corrugations and near the rivets making cracks less likely. McFarlane has improved the stiff ener angle as compared to other brand of triangle stiffeners.

 

New Streamline Shape
Our new design smoothly transitions from the skin surface to a blunt trailing edge without an unsightly bulb and resultant drag found on common trailing edge stiffeners. The new shape even weighs less than other bulky stiffeners.

 

Instructions for Continued Airworthiness

 

 

Supersedures

Eligibility Notice

Please verify that this product is eligible for your aircraft before adding it to your cart.

Click here to view product eligibility.
OEM Part Number McFarlane Part Number Comment
0426901-14 MC1741-79.5
0426901-17 MC1741-79.5
0523901-10 MC1741-79.5
0523901-10AGW MC1741-79.5
0523901-29 MC1741-79.5
0523901-37 MC1741-79.5
0523902-7 MC1741-79.5
1741-79.5 MC1741-79.5

Eligible Aircraft

Make Series Model Beginning S/N Ending S/N Quantity Per Aircraft Location Eligibility Chart
Cessna 150 150 17001 59018 2 Flap Trailing Edge Stiffener 1743
Cessna 150 150A 15059019 15059350 2 Flap Trailing Edge Stiffener 1743
Cessna 150 150B 15059351 15059700 2 Flap Trailing Edge Stiffener 1743
Cessna 150 150C 15059701 15060087 2 Flap Trailing Edge Stiffener 1743
Cessna 150 150D 15060088 15060772 2 Flap Trailing Edge Stiffener 1743
Cessna 150 150E 15060773 15061532 2 Flap Trailing Edge Stiffener 1743
Cessna 150 150F 15061533 15064532 2 Flap Trailing Edge Stiffener 1743
Cessna 150 150G 15064533 15067198 2 Flap Trailing Edge Stiffener 1743
Cessna 150 150H 15067199 15069308 2 Flap Trailing Edge Stiffener 1743
Cessna 150 150J 15069309 15071128 2 Flap Trailing Edge Stiffener 1743
Cessna 150 150K 15071129 15072003 2 Flap Trailing Edge Stiffener 1743
Cessna 150 150L 15072004 15075781 2 Flap Trailing Edge Stiffener 1743
Cessna 150 150M 15075782 15079405 2 Flap Trailing Edge Stiffener 1743
Cessna 150 A150K A1500001 A1500226 2 Flap Trailing Edge Stiffener 1743
Cessna 150 A150L A1500227 A1500523 2 Flap Trailing Edge Stiffener 1743
Cessna 150 A150M A1500524 A1500734 2 Flap Trailing Edge Stiffener 1743
Cessna 150 F150F F150-0001 F150-0067 2 Flap Trailing Edge Stiffener 1743
Cessna 150 F150G F150-0068 F150-0219 2 Flap Trailing Edge Stiffener 1743
Cessna 150 F150H F150-0220 F150-0389 2 Flap Trailing Edge Stiffener 1743
Cessna 150 F150J F150-0390 F150-0529 2 Flap Trailing Edge Stiffener 1743
Cessna 150 F150K F15000530 F15000658 2 Flap Trailing Edge Stiffener 1743
Cessna 150 F150L F15000659 F15001143 2 Flap Trailing Edge Stiffener 1743
Cessna 150 F150M F15001144 F15001428 2 Flap Trailing Edge Stiffener 1743
Cessna 150 FA150K FA1500001 FA1500081 2 Flap Trailing Edge Stiffener 1743
Cessna 150 FA150L FA1500082 FA1500120 2 Flap Trailing Edge Stiffener 1743
Cessna 150 FA150L (when equipped w/FKA150-2311 & FKA150-2316) FA1500121 FA1500261 2 Flap Trailing Edge Stiffener 1743
Cessna 150 FA150M (when equipped w/FKA150-2311 & FKA150-2316) FA1500262 FA1500336 2 Flap Trailing Edge Stiffener 1743
Cessna 150 FRA150L FRA1500121 FRA1500261 2 Flap Trailing Edge Stiffener 1743
Cessna 150 FRA150M FRA1500262 FRA1500336 2 Flap Trailing Edge Stiffener 1743
Cessna 152 152 15279406 15286033 2 Flap Trailing Edge Stiffener 1743
Cessna 152 A152 A1520735 A1521049 2 Flap Trailing Edge Stiffener 1743
Cessna 152 F152 F15201429 F15201980 2 Flap Trailing Edge Stiffener 1743
Cessna 152 FA152 FA1520337 FA1520425 2 Flap Trailing Edge Stiffener 1743
Cessna 170 170B 20267 27169 2 Flap Trailing Edge Stiffener 1743
Cessna 172 172 28000 46754 2 Flap Trailing Edge Stiffener 1743
Cessna 172 172A 46755 47746 2 Flap Trailing Edge Stiffener 1743
Cessna 172 172B 17247747 17248734 2 Flap Trailing Edge Stiffener 1743
Cessna 172 172C 17248735 17249544 2 Flap Trailing Edge Stiffener 1743
Cessna 172 172D 17249545 17250572 2 Flap Trailing Edge Stiffener 1743
Cessna 172 172E 17250573 17251822 2 Flap Trailing Edge Stiffener 1743
Cessna 172 172F (T-41A) 17251823 17253392 2 Flap Trailing Edge Stiffener 1743
Cessna 172 172G 17253393 17254892 2 Flap Trailing Edge Stiffener 1743
Cessna 172 172H (T-41A) 17254893 17256512 2 Flap Trailing Edge Stiffener 1743
Cessna 172 172I 17256513 17257161 2 Flap Trailing Edge Stiffener 1743
Cessna 172 172K 17257162 17259223 2 Flap Trailing Edge Stiffener 1743
Cessna 172 172L 17259224 17260758 2 Flap Trailing Edge Stiffener 1743
Cessna 172 172M 17260759 17263458 2 Flap Trailing Edge Stiffener 1743
Cessna 172 172M 17263459 17267584 2 Flap Trailing Edge Stiffener 1743
Cessna 172 172N 17267585 17274009 2 Flap Trailing Edge Stiffener 1743
Cessna 172 172P 17274010 17276654 2 Flap Trailing Edge Stiffener 1743
Cessna 172 172Q 17275869 17276211 2 Flap Trailing Edge Stiffener 1743
Cessna 172 172R 17280001 17299999 2 Flap Trailing Edge Stiffener 1743
Cessna 172 172RG 172RG0001 172RG1191 2 Flap Trailing Edge Stiffener 1743
Cessna 172 172S 172S8001 172S99999 2 Flap Trailing Edge Stiffener 1743
Cessna 172 F172D F172-0001 F172-0018 2 Flap Trailing Edge Stiffener 1743
Cessna 172 F172E F172-0019 F172-0085 2 Flap Trailing Edge Stiffener 1743
Cessna 172 F172F F172-0086 F172-0179 2 Flap Trailing Edge Stiffener 1743
Cessna 172 F172G F172-0180 F172-0319 2 Flap Trailing Edge Stiffener 1743
Cessna 172 F172H F17200655 F17200754 2 Flap Trailing Edge Stiffener 1743
Cessna 172 F172H F172-0320 F172-0654 2 Flap Trailing Edge Stiffener 1743
Cessna 172 F172K F17200755 F17200804 2 Flap Trailing Edge Stiffener 1743
Cessna 172 F172L F17200805 F17200904 2 Flap Trailing Edge Stiffener 1743
Cessna 172 F172M F17200905 F17201234 2 Flap Trailing Edge Stiffener 1743
Cessna 172 F172M F17201235 F17201514 2 Flap Trailing Edge Stiffener 1743
Cessna 172 F172N F17201515 F17202039 2 Flap Trailing Edge Stiffener 1743
Cessna 172 F172P F17202040 F17202254 2 Flap Trailing Edge Stiffener 1743
Cessna 172 FP172 FP172-0001 FP172-0003 2 Flap Trailing Edge Stiffener 1743
Cessna 172 FR172E FR17200001 FR17200060 2 Flap Trailing Edge Stiffener 1743
Cessna 172 FR172F FR17200061 FR17200145 2 Flap Trailing Edge Stiffener 1743
Cessna 172 FR172G FR17200146 FR17200225 2 Flap Trailing EdgeStiffener 1743
Cessna 172 FR172H FR17200226 FR17200350 2 Flap Trailing Edge Stiffener 1743
Cessna 172 FR172J FR17200351 FR17200590 2 Flap Trailing Edge Stiffener 1743
Cessna 172 FR172K FR17200591 FR17200675 2 Flap Trailing Edge Stiffener 1743
Cessna 172 P172D P17257120 P17257188 2 Flap Trailing Edge Stiffener 1743
Cessna 172 R172E (T-41B,C,D) R172-0001 R1720335 2 Flap Trailing Edge Stiffener 1743
Cessna 172 R172F (T-41D) R172-0336 R172-0409 2 Flap Trailing Edge Stiffener 1743
Cessna 172 R172G (T-41C,D) R1720410 R1720444 2 Flap Trailing Edge Stiffener 1743
Cessna 172 R172H (T-41D) R1720445 R1720620 2 Flap Trailing Edge Stiffener 1743
Cessna 172 R172K R1722000 R1723454 2 Flap Trailing Edge Stiffener 1743
Cessna 175 175 55001 56238 2 Flap Trailing Edge Stiffener 1743
Cessna 175 175A 56239 56777 2 Flap Trailing Edge Stiffener 1743
Cessna 175 175B 17556778 17557002 2 Flap Trailing Edge Stiffener 1743
Cessna 175 175C 17557003 17557119 2 Flap Trailing Edge Stiffener 1743
Cessna 180 180 30000 32661 2 Flap Trailing Edge Stiffener 1743
Cessna 180 180A 32662 50355 2 Flap Trailing Edge Stiffener 1743
Cessna 180 180B 50356 50661 2 Flap Trailing Edge Stiffener 1743
Cessna 180 180C 50662 50911 2 Flap Trailing Edge Stiffener 1743
Cessna 180 180D 18050912 18051063 2 Flap Trailing Edge Stiffener 1743
Cessna 180 180E 18051064 18051183 2 Flap Trailing Edge Stiffener 1743
Cessna 180 180F 18051184 18051312 2 Flap Trailing Edge Stiffener 1743
Cessna 180 180G 18051313 18051445 2 Flap Trailing Edge Stiffener 1743
Cessna 180 180H 18051446 18052284 2 Flap Trailing Edge Stiffener 1743
Cessna 180 180J 18052285 18052384 2 Flap Trailing Edge Stiffener 1743
Cessna 180 180J 18052385 18052770 2 Flap Trailing Edge Stiffener 1743
Cessna 180 180K 18052771 18053203 2 Flap Trailing Edge Stiffener 1743
Cessna 182 182 33000 33842 2 Flap Trailing Edge Stiffener 1743
Cessna 182 182A 33843 51556 2 Flap Trailing Edge Stiffener 1743
Cessna 182 182B 51557 52358 2 Flap Trailing Edge Stiffener 1743
Cessna 182 182C 52359 53007 2 Flap Trailing Edge Stiffener 1743
Cessna 182 182D 18253008 18253598 2 Flap Trailing Edge Stiffener 1743
Cessna 182 182E 18253599 18254423 2 Flap Trailing Edge Stiffener 1743
Cessna 182 182F 18254424 18255058 2 Flap Trailing Edge Stiffener 1743
Cessna 182 182G 18255059 18255844 2 Flap Trailing Edge Stiffener 1743
Cessna 182 182H 18255846 18256684 2 Flap Trailing Edge Stiffener 1743
Cessna 182 182J 18256685 18257625 2 Flap Trailing Edge Stiffener 1743
Cessna 182 182K 18257626 18258505 2 Flap Trailing Edge Stiffener 1743
Cessna 182 182L 18258506 18259305 2 Flap Trailing Edge Stiffener 1743
Cessna 182 182M 18259306 18260055 2 Flap Trailing Edge Stiffener 1743
Cessna 182 182N 18260056 18260825 2 Flap Trailing Edge Stiffener 1743
Cessna 182 182P 18260826 18262465 2 Flap Trailing Edge Stiffener 1743
Cessna 182 182P 18262466 18265175 2 Flap Trailing Edge Stiffener 1743
Cessna 182 182Q 18265176 18267715 2 Flap Trailing Edge Stiffener 1743
Cessna 182 182R 18267716 18268586 2 Flap Trailing Edge Stiffener 1743
Cessna 182 182S 18280001 18280944 2 Flap Trailing Edge Stiffener 1743
Cessna 182 182T 18280945 182999999 2 Flap Trailing Edge Stiffener 1743
Cessna 182 F182P F18200001 F18200025 2 Flap Trailing Edge Stiffener 1743
Cessna 182 F182Q F18200026 F18200169 2 Flap Trailing Edge Stiffener 1743
Cessna 182 FR182 FR18200001 FR18200070 2 Flap Trailing Edge Stiffener 1743
Cessna 182 R182 R18200001 R18202041 2 Flap Trailing Edge Stiffener 1743
Cessna 182 T182 18267716 18268541 2 Flap Trailing Edge Stiffener 1743
Cessna 182 T182T T18208001 T182999999 2 Flap Trailing Edge Stiffener 1743
Cessna 182 TR182 R18200584 R18202041 2 Flap Trailing Edge Stiffener 1743
Cessna 185 185 185-0001 185-0237 2 Flap Trailing Edge Stiffener 1743
Cessna 185 185A 185-0238 185-0512 2 Flap Trailing Edge Stiffener 1743
Cessna 185 185B 185-0513 185-0653 2 Flap Trailing Edge Stiffener 1743
Cessna 185 185C 185-0654 185-0776 2 Flap Trailing Edge Stiffener 1743
Cessna 185 185D 185-0777 185-0967 2 Flap Trailing Edge Stiffener 1743
Cessna 185 185E 185-0968 185-1149 2 Flap Trailing Edge Stiffener 1743
Cessna 185 A185E 18501600 18502090 2 Flap Trailing Edge Stiffener 1743
Cessna 185 A185E 185-0968 185-1599 2 Flap Trailing Edge Stiffener 1743
Cessna 185 A185F 18502091 18502310 2 Flap Trailing Edge Stiffener 1743
Cessna 185 A185F 18502311 18504448 2 Flap Trailing Edge Stiffener 1743
Cessna 188 188 188-0001 188-0572 2 Flap Trailing Edge Stiffener 1743
Cessna 188 188A 18800573 18800832 2 Flap Trailing Edge Stiffener 1743
Cessna 188 188B 18800833 18802348 2 Flap Trailing Edge Stiffener 1743
Cessna 188 A188 188-0001 188-0572 2 Flap Trailing Edge Stiffener 1743
Cessna 188 A188A 18800573 18800832 2 Flap Trailing Edge Stiffener 1743
Cessna 188 A188B 18800833 18802348 2 Flap Trailing Edge Stiffener 1743
Cessna 188 A188B 18802349 18803973 2 Flap Trailing Edge 1743
Cessna 188 A188B (w/ large hopper) 18800833T 18802348T 2 Flap Trailing Edge Stiffener 1743
Cessna 188 A188B (w/ large hopper) 18802349T 18803973T 2 Flap Trailing Edge 1743
Cessna 188 T188C T18803325T T18803974T 2 Flap Trailing Edge 1743
Cessna 205 210-5 (205) 205-0001 205-0480 2 Flap Trailing Edge 1743
Cessna 205 210-5A (205A) 205-0481 205-0577 2 Flap Trailing Edge 1743
Cessna 210 210 57001 57575 2 Flap Trailing Edge 1743
Cessna 210 210A 21057576 21057840 2 Flap Trailing Edge 1743
Cessna 210 210B 21057841 21058085 2 Flap Trailing Edge Stiffener 1743
Cessna 210 210C 21058086 21058220 2 Flap Trailing Edge Stiffener 1743

Eligibility Chart 1743 Notes:

  1. Not all eligible aircraft originally equiped with a flap trailing edge stiffener.

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