NTSB CAROL · Event
Event DEN04LA053
Aircraft involved
Probable cause & findings
the pilot of the Maule's failure to maintain a visual lookout.
Factual narrative
On March 26, 2004, at 1157 mountain standard time, a taxiing Maule M-5-210C, N339X, collided with a stationary Cessna 172, N5345G, substantially damaging both airplanes at Jefferson County Airport, Broomfield, Colorado. The airline transport pilot aboard the Maule, and the commercial flight instructor and dual student aboard the Cessna were not injured. Visual meteorological conditions prevailed. No flight plan had been filed for either of the two local flights being conducted under the provisions of Title 14 CFR Part 91. Both flights were originating at the time of the accident. According to the flight instructor aboard the Cessna, they were stationary in the run-up area for runway 11L, facing an approximate heading of 240 degrees. They had just completed an engine run-up and the student was conducting an instrument scan. The flight instructor looked up momentarily to see the Maule headed straight for the nose of the Cessna. The right wing of the Maule went under the left wing of the Cessna, the propeller blade of the Maule penetrated the windscreen on the left side of the Cessna and the propellers of both airplanes struck each other. The airline transport pilot onboard the Maul stated that despite the S-turns performed during the taxi, he did not see the Cessna. The Cessna sustained a crushed cowling, wrinkled firewall and a bent left wing strut. The right leading edge of the Maule wing was crushed, the wing nose ribs bent, and the cowling crushed. The Cessna was stationary in the run-up area for runway 11L, facing an approximate heading of 240 degrees. They had just completed an engine run-up and the student was conducting an instrument scan. The flight instructor looked up momentarily to see the Maule headed straight for the nose of the Cessna. The airline transport pilot aboard the Maule stated that despite the S-turns, he did not see the Cessna prior to the impact. The right wing of the Maule went under the left wing of the Cessna, the propeller blade of the Maule penetrated the windscreen on the left side of the Cessna and the propellers of both airplanes struck each other substantially damaging both airplanes. Source: NTSB Aviation Accident Database (Pre-2008 Archive) Retrieved: 2026-02-12
Verbatim from NTSB's published report. Source file
NTSB_2004_DEN04LA053.txt.
Findings + structured fields enriched from FAA avall.mdb.
Full investigation docket on
data.ntsb.gov ↗.
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