# NTSB DEN04LA053: Cessna C172, N5345G, Broomfield, CO, March 26, 2004

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: March 26, 2004, 11:57 local (18:57 UTC)
- Place: Broomfield, CO
- Coordinates: 39.908332, -105.116668
- Nearby events: https://openairdocs.org/map.md?lat=39.9083&lon=-105.1167&mi=10
- Phase of flight: [Standing](https://openairdocs.org/ntsb-phases/150) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 3 uninjured
- Status: Completed, report June 30, 2004
- Report: Approved by Office Director
- Parties: FAA FSDO
- NTSB case key (mKey): 58970
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=DEN04LA053
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/58970/pdf
- Page: https://openairdocs.org/ntsb/DEN04LA053

## Probable cause (aircraft 3)

the pilot of the Maule's failure to maintain a visual lookout.

## Sequence of events

In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf).

- Collision between aircraft (other than midair), standing - engine(s) operating
  - visual lookout - not maintained, pilot of other aircraft (cause)
- Collision between aircraft (other than midair), taxi - to takeoff
  - visual lookout - not maintained, pilot in command (cause)

## Analysis (aircraft 3)

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.

## Factual narrative (aircraft 3)

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.

## Aircraft 1

- Registration: [N5345G](https://openairdocs.org/deregistered/N5345G-2008-09-16), registration cancelled 2008-09-16, S/N 172S9371, built 2003 (OpenAirDocs)
- Reported make and model: Cessna C172
- Registry model: [Cessna 172S](https://openairdocs.org/model/cessna-172s) (registry code 2072439) (OpenAirDocs)
- Registry engine: [Lycoming IO-360-L2A](https://openairdocs.org/engine/lycoming-io-360-l2a) (registry code 41597, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 17259371
- Airframe hours: 584
- Engines: Lycoming IO-360-L2A 180 horsepower reciprocating
- Damage: Substantial damage
- Flight: Instructional, Part 91
- Operator: McAir Aviation, LLC
- Registered owner: Jasonair LLC
- Airworthiness certificate: Standard, Normal
- Last inspection: 100 hour, February 10, 2004, 94 hours before
- Departed: BJC, Broomfield, CO
- Airport: BJC, Jeffco

## Aircraft 3

- Registration: [N339X](https://openairdocs.org/aircraft/N339X), registered now, S/N 6151C, built 1975 (OpenAirDocs)
- Reported make and model: Maule M-5-210C
- Registry model: [Maule M-5-210C](https://openairdocs.org/model/maule-m-5-210c) (registry code 5460134) (OpenAirDocs)
- Registry engine: [Continental IO-360 series](https://openairdocs.org/engine/continental-io-360-series) (registry code 17025, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 6151C
- Airframe hours: 2036
- Engines: Continental IO-360-D33A 210 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Operator: Andreq Chitiea
- Registered owner: Jordan Aviation LLC
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, March 25, 2004, 0 hours before
- Departed: BJC, Broomfield, CO
- Airport: BJC, Jeffco

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Flight instructor, aircraft N5345G; age 25; injuries: none; commercial, flight instructor; airplane ratings: single-engine land, multi-engine land; instrument ratings: airplane; medical: class 2, valid medical--no waivers/lim.; last flight review November 4, 2003; seat: right; flight hours: 490 total, 289 in this make and model, 421 as pilot in command, 109 in the last 90 days, 38 in the last 30 days, 2 in the last 24 hours
- Student pilot, aircraft N5345G; age 20; injuries: none; student; medical: class 3, valid medical--no waivers/lim.; seat: left; flight hours: 27 total, 27 in this make and model, 27 in the last 90 days, 12 in the last 30 days, 0 in the last 24 hours
- Pilot, aircraft N339X; age 52; injuries: none; airline transport, flight instructor; airplane ratings: multi-engine land, single-engine land; instrument ratings: airplane; medical: class 2, valid medical--w/ waivers/lim; last flight review November 12, 2003; seat: left; flight hours: 7,600 total, 27 in this make and model, 7,100 as pilot in command, 25 in the last 90 days, 13 in the last 30 days, 4 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 80° at 8 knots
- Visibility: 35 statute miles
- Lowest ceiling: none
- Temperature: 68 °F, dew point 30 °F
- Altimeter: 29.87 inHg
- Observed at: BJC, 1 nm away

## FAA reports on this event (2)

The FAA's own accident and incident reports, matched to the aircraft by N-number and date (OpenAirDocs).

- [Accident 20040326004131A](https://openairdocs.org/incident/20040326004131A), Mar 26, 2004: Cessna 172S, Denver, CO, Substantial damage. (-23) On March 26, 2004 at approximately 1150 local time at jefferson county airport (bjc) in VFR meteorological conditions at the run-up area off the "a"…
- [Accident 20040326004132A](https://openairdocs.org/incident/20040326004132A), Mar 26, 2004: Maule M5210C, Denver, CO, Substantial damage. (-23) On March 26, 2004 at approximately 1150 local time at jefferson county airport (bjc) in VFR meteorological conditions at the run-up area off the "a"…

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

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