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For safety reasons, run-ups on large transport-category aircraft require the utmost coordination between the cockpit crew and the ground crew. On January 16, 2006 an experienced mechanic was inspecting the #2 engine of a Boeing 737-500 during a run-up when he accidentally positioned himself too close to the engine's intake. With the engine running near takeoff thrust, he was ingested into the engine and died as a result.
In late March 2020, an American Eagle CRJ doing an engine run-up caused a hangar to flip and land on its roof while also damaging two privately owned aircraft at San Luis Obispo airport.
aviation
Aviation includes the activities surrounding mechanical flight and the aircraft industry. ''Aircraft'' include fixed-wing and rotary-wing types, morphable wings, wing-less lifting bodies, as well as lighter-than-air aircraft such as h ...
, run-up, or runup, is the series of last-minute checks performed by pilots on an aircraft prior to take-off. Run-ups are also sometimes performed by aircraft mechanics. This could occur at a gate in between flights or elsewhere to test engines and diagnose engine problems.
Overview
The checks performed during a run-up vary with the type of aircraft and (to a lesser extent) with the operating rules under which the flight is being conducted, ''e.g.,''instrument flight rules
In aviation, instrument flight rules (IFR) is one of two sets of regulations governing all aspects of civil aviation aircraft operations; the other is visual flight rules (VFR).
The U.S. Federal Aviation Administration's (FAA) ''Instrument Fl ...
, visual flight rules
In aviation, visual flight rules (VFR) is a set of regulations under which a pilot operates an aircraft in weather conditions generally clear enough to allow the pilot to see where the aircraft is going. Specifically, the weather must be better tha ...
, operation as a commercial carrier or private pilot, and so on. The term ''run-up'' alludes to engine checks that involve temporarily advancing the throttles to ensure that engines are capable of producing take-off thrust, although not all run-up procedures involve such checks.
A run-up area is a location at an airport
An airport is an aerodrome with extended facilities, mostly for commercial Aviation, air transport. They usually consist of a landing area, which comprises an aerially accessible open space including at least one operationally active surf ...
where pilots can perform run-up checks of their aircraft. They exist because air blast from engine verification may cause problems for other aircraft or structures, so a special area where such checks will do no harm is set aside for them. They also allow aircraft to temporarily leave taxiways so that they don't obstruct ground traffic while the run-up is performed. For these reasons, run-up areas are typically located near runway
In aviation, a runway is an elongated, rectangular surface designed for the landing and takeoff of an aircraft. Runways may be a human-made surface (often asphalt concrete, asphalt, concrete, or a mixture of both) or a natural surface (sod, ...
s.
Ground personnel safety
For safety reasons, run-ups on large transport-category aircraft require the utmost coordination between the cockpit crew and the ground crew. On January 16, 2006 an experienced mechanic was inspecting the #2 engine of a Boeing 737-500 during a run-up when he accidentally positioned himself too close to the engine's intake. With the engine running near takeoff thrust, he was ingested into the engine and died as a result.
In late March 2020, an American Eagle CRJ doing an engine run-up caused a hangar to flip and land on its roof while also damaging two privately owned aircraft at San Luis Obispo airport.
References
Aircraft operations {{Aviation-stub