If you find FOD (foreign object debris) on an airfield, the immediate priority is to remove it safely if you can do so without putting yourself in danger, then report it. FOD is any object located somewhere it shouldn’t be in the airport environment, and even something as small as a loose bolt can cause catastrophic damage to an aircraft engine. Whether you’re a ramp worker, pilot, mechanic, or general aviation hobbyist, the steps you take in the next few minutes matter.
Pick It Up or Mark It
The simplest and most important rule: if you can safely pick it up, do it right away. A stray bolt, a plastic bag, a chunk of broken pavement, a luggage tag on the taxiway. Don’t assume someone else will handle it. If the object is too large to move by hand, too heavy, or potentially hazardous (sharp metal sheeting, chemical containers, wildlife remains), stay clear and mark or note the exact location so ground crews can respond quickly.
Never walk onto an active runway or taxiway to retrieve debris unless you have authorization and radio contact with the control tower. Your safety comes first. If you spot FOD from a cockpit during taxi, stop and radio the tower or ground control immediately with the location.
What Counts as FOD
FOD covers a surprisingly wide range of objects. The FAA categorizes typical debris into several groups:
- Aircraft hardware: nuts, bolts, washers, safety wire, fuel caps, landing gear fragments, tire pieces, metal sheets
- Tools and supplies: mechanics’ tools left behind, catering supplies, pens, badges, soda cans
- Ramp and apron debris: plastic wrap from freight pallets, broken luggage parts, pieces of ground equipment
- Pavement materials: concrete and asphalt chunks, rubber joint materials, paint chips
- Construction debris: wood, stones, fasteners, miscellaneous metal
- Natural materials: plant fragments, wildlife, volcanic ash
- Winter contaminants: snow and ice buildup
If it’s not supposed to be there and it could damage an aircraft or injure a person, it’s FOD.
Why Even Small Debris Is Dangerous
A jet engine pulls in enormous volumes of air, and anything sitting on the runway surface can get sucked in during takeoff or landing. NASA research on turbine engine damage shows that the consequences of ingestion range from negligible to catastrophic, depending on the object’s size and material. A relatively small impact may only initiate a crack in a fan blade rather than visibly breaking it. That’s arguably worse in some ways: the engine keeps running, the crew notices nothing, and the blade fails later due to internal damage that wasn’t caught.
Larger objects cause immediate problems. They deform or break compressor blades, creating rotor imbalance and drops in engine efficiency. Because each stage of a jet engine feeds into the next, damage to the front fan changes the temperature and pressure reaching every component behind it, making the full extent of damage difficult to assess in flight. Beyond engines, FOD punctures tires, scratches windshields, damages control surfaces, and can pierce fuel lines.
Report It With Specific Details
After removing or marking the debris, report the find to the appropriate authority. On a commercial airport, that typically means notifying ground control, your airline’s operations center, or the airport operations office. At a general aviation field, contact the fixed-base operator (FBO) or airport manager.
Include as much detail as you can: the exact location (runway number, taxiway letter, distance from a known landmark), the type of object, its approximate size, and when you found it. If the debris appears to have come from an aircraft (a landing gear fragment, a fuel cap, tire rubber), that detail is especially important because it may indicate a damaged plane that’s already airborne or about to land.
FOD Prevention on the Ground
Finding FOD is really the last line of defense. Most of the effort goes into keeping debris off movement areas in the first place. Airports conduct regular inspections of runways and taxiways, and ramp areas get swept routinely between operations. Many airports now use automated detection systems. The FAA tested electro-optical systems that scan runway surfaces continuously and can detect objects of various shapes, sizes, and materials in daylight, darkness, rain, mist, fog, and snow.
If you work on or around aircraft, prevention starts with personal habits. Secure all tools before closing panels. Account for every fastener. Pick up zip ties, safety wire cutoffs, and packaging material immediately rather than letting them accumulate. At NASA’s Marshall Space Flight Center, FOD prevention programs require workers to account for hand tools, fasteners, and shop consumables at the end of every task. Their facilities use three levels of FOD-sensitive areas, each with increasing restrictions on personal items, food, and loose objects. In the most critical zones, no loose personal items are permitted at all.
What Happens After You Report
Once a FOD report reaches airport operations, the response depends on the severity and location. Debris on an active runway can trigger a temporary closure while crews inspect and clear the surface. Objects found on taxiways or ramp areas may be handled by ground crews without shutting down operations, but the report still gets logged. Airports with formal FOD management programs track every incident, looking for patterns: repeated debris in the same spot might indicate a pavement problem, a poorly secured gate area, or a specific operator that needs better housekeeping.
If the debris appears to have caused or could cause aircraft damage, maintenance teams inspect affected aircraft. Engine monitoring systems can detect the signature of FOD ingestion by tracking changes in temperature, pressure, and efficiency across compressor stages. Even if an engine seems to be running normally, a known FOD event usually triggers a borescope inspection of the fan and compressor blades to check for cracks or deformation that aren’t yet causing symptoms.
The bottom line is straightforward. If you see something on the airfield that doesn’t belong there, remove it if it’s safe to do so, and tell someone either way. It takes seconds, and it can prevent damage worth millions of dollars or, more importantly, save lives.