Cessna models 152, A152, F152, FA152 and 172RG aircraft may have various flap track rib assemblies installed. If flap track rib assembly part number 0523231-23 is currently installed, then McFarlane part number MC0523231-14 must be used to replace the flap track. If flap track rib assembly part number 0525001-1, 0525001-1S or 2425001-1 is currently installed, then McFarlane part number MC0525001-2 must be used to replace the flap track.
(Information from eligibility Note 5.)

Flap track rib assembly 0523231-23 includes a 0.16 inch thick flap track with no lightening hole. Flap track rib assemblies 0525001-1, 0525001-1S and 2425001-1 include a 0.25 inch thick flap track with a 2.25 inches lightening hole located between the flap roller slots.

Replace worn-out tracks to prevent dangerous and expensive binding problems!
McFarlane's new FAA-PMA flap tracks feature many improvements over the original.

• Improved material
     - 20% stronger
     - 6 times fatigue strength
     - Greater resistance to wear, "mushrooming" and stress cracking  protection
• Precision machined for smooth rolling action
• No pre-drilled holes for a precise, clean installation
• Replace just the track, not the entire assembly 
     - Cessna only lists the rib assembly for most aircraft
     - Eliminates the need to drill into the fuel tank area
• Alodined then epoxy primed per MIL-PRF-23377 for corrosion
• Cessna aircraft models 150 thru 210
• In stock for immediate shipment!

Determine if a Cessna flap track is worn beyond wear limits with the Flap Track Wear Gauge.

Instructions for Continued Airworthiness