Tronair 99-9028-6036 – 36" Aircraft Wheel Chocks, Black with Orange Stripe

Aircraft wheel chocks are triangular-profile devices placed in front of and behind an aircraft's tires to prevent unintended rolling during parking, refueling, boarding, cargo operations, and maintenance. Because aircraft are exposed to ramp slopes, wind, jet blast, and the vibration of nearby ground equipment, chocks provide a critical physical safeguard that goes beyond the aircraft's own braking system – particularly during extended ground time when continuous brake application isn't practical. Using properly sized, well-maintained chocks is one of the most fundamental steps in safe ground handling and is standard practice across general aviation, MRO, FBO, and airline operations.

At 36” wide and 6” tall, the 99-9028-6036 chocks are designed for midsize to larger aircraft tires, making them appropriate for business jets, regional jets, and turboprops with correspondingly sized main gear wheels. They are not typically suited for small single- or twin-engine piston aircraft, which require smaller, lighter chocks matched to their wheel dimensions. When in doubt, cross-reference the chock dimensions against the aircraft's tire and wheel specifications – or contact PJi's aviation specialists – to confirm the correct chock size for your specific aircraft type.

The 99-9028-6036 includes two black and orange wheel chocks, two 2-ear hose clamps, and one 66” white twisted nylon rope that connects the pair. All components are Tronair OEM parts – only OEM replacement parts should be used to maintain the integrity and warranty of the product. The rope and clamps keep the chocks together as a set, simplifying carrying, deployment, and post-use retrieval on the ramp.

The 99-9028-6036 chocks are finished in black with a bright orange stripe across the top, providing high-contrast visibility in a range of lighting conditions – including dusk, dawn, and artificially lit hangars or ramp areas. The color combination helps ground crew quickly confirm both placement before ground operations begin and removal before towing or taxi, reducing the risk of a chock being inadvertently left in position. High-visibility markings on wheel chocks are a recognized best practice for ramp safety and help prevent costly foreign object damage (FOD) incidents.

The two chocks are connected by a 66” (1.67 m) twisted white nylon rope (1/2" diameter), which keeps the pair together for easy carrying and reduces the risk of a chock being misplaced or left on the ramp. The rope allows a technician to carry both chocks with a single grip and position them efficiently around the tire during deployment and retrieval. The two-ear hose clamps secure the rope to each chock.

Place one chock snugly against the front of a tire and one snugly against the rear, ensuring both are in firm contact with the tire surface and seated flat against the ground. Proper two-sided placement prevents the aircraft from rolling in either direction – placing a chock on only one side leaves it free to roll in the other. On any ramp gradient or incline, both chocks are essential, and technicians should always follow the applicable Aircraft Maintenance Manual (AMM) or ground handling procedures for their specific aircraft and operation type.

The 66” connecting rope allows both chocks to be carried together as a single unit, making ramp deployment and post-service retrieval fast and straightforward. When not in use, the chocks can be stored on a dedicated chock rack, stacked flat, or placed in a GSE storage area – their solid construction means they stack without deforming under their own weight. Keeping chocks consistently stored in a designated location reduces the risk of misplacement, oversight on the ramp, or the creation of a foreign object hazard.

Before each use, inspect both chocks for cracks, chips, or deformation in the body – particularly along the bottom and contact surfaces that engage the tire and the ground. Check the textured grip surfaces for significant wear that could reduce traction, and inspect the rope and hose clamp connections for fraying, looseness, or damage. The orange stripe should also be checked for fading or damage that could compromise visibility; any chock that no longer meets safety and visibility standards should be removed from service and replaced with Tronair OEM replacement parts.

No. The 99-9028-6036 cannot be modified without the written approval of Tronair. Unauthorized modifications void all warranties and releases, and only Tronair OEM replacement parts may be used for any repairs or component replacements. If you need a chock solution for a specific application not covered by this product, please contact our aviation specialists to identify an appropriate alternative.

Tronair warrants the 99-9028-6036 to be free of manufacturing and material defects for one year from the date of shipment to the original customer, with coverage limited to the repair or replacement of defective components. The warranty does not cover parts required for normal maintenance, components covered by a separate manufacturer's warranty, or damage resulting from unauthorized modifications. Replacement parts carry a 90-day warranty from their date of shipment.