# NTSB DEN83LA212: Beech B90, N400AM, Burlington, CO, September 10, 1983

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: September 10, 1983, 05:25 local (11:25 UTC)
- Place: Burlington, CO
- Coordinates: 39.300781, -102.269645 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=39.3008&lon=-102.2696&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 3 uninjured
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 16157
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=DEN83LA212
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/16157/pdf
- Page: https://openairdocs.org/ntsb/DEN83LA212

## Sequence of events

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

- Overrun, landing - roll
  - light condition - dark night (contributing factor)
  - terrain condition - high obstruction(s) (contributing factor)
  - weather condition - unfavorable wind (contributing factor)
  - weather condition - tailwind (contributing factor)
  - weather condition - gusts (contributing factor)
  - distance - misjudged, pilot in command (cause)
  - airspeed - misjudged, pilot in command (cause)
  - go-around - not performed, pilot in command (cause)
  - thrust reverser - inoperative
  - airspeed - excessive, pilot in command (contributing factor)
  - terrain condition - high obstruction(s) (contributing factor)
  - aborted landing - not possible, pilot in command
- Gear collapsed, landing - roll
  - object - fence (contributing factor)
  - object - utility pole (contributing factor)
- Gear collapsed, landing - roll
  - terrain condition - rough/uneven (contributing factor)
  - landing gear - overload

## Analysis

DURING ARRIVAL, THE PLT CHECKED THE LIGHTED WIND SOCK & ESTIMATED THAT THE WIND WAS FROM 020 DEG AT 10 KTS. HE ELECTED NOT TO LAND ON RWY 31 SINCE THERE WERE OBSTACLES NEAR THE APCH END. HE STATED THAT WHEN THE ACFT WAS ABOUT TO TOUCH DOWNON RWY 13, THERE WAS A BIG GUST OF WIND WHICH MADE THE ACFT LAND LONG. AS THE ACFT LANDED. THE PLT SELECTED MAX REVERSE,BUT GOT NO RESPONSE. HE DECIDE HE COULD NOT MAKE A SUCCESSFUL GO-AROUND SO HE APPLIED MAX BRAKING, BUT WAS UNABLE TO STOP ON THE REMAINING RWY. SUBSEQUENTLY, THE ACFT DEPARTED THE RWY, WENT THRU A FENCE, CROSSED A ROAD, HIT A POLE & THENTHE GEAR COLLAPSED AS IT WENT OVER RAILROAD TRACKS. A WITNESS ESTIMATED THAT AT ABOUT THE TIME THE ACFT WAS LANDING, THEWIND SHIFTED TO THE NORTH & INCREASED TO ABOUT 35 TO 40 MPH. REPORTEDLY, THE FINAL APCH SPEED WAS ABOUT 13 KTS TOO FAST.SKID MARKS WERE FOUND ON THE RWY, STARTING ABOUT 2000 FT FROM THE APCH END. WITH A 35 KT TAIL WIND, LANDING ROLL WITHOUTREVERSE THRUST WOULD HAVE BEEN 3015 FT. NO MALFUNCTIONS FOUND, BUT IT WAS NOTED THAT REVERSE SYS WAS INOP ABOVE 90 KTS.

## Aircraft

- Registration: N400AM (not matched to a registry record)
- Reported make and model: BEECH B90
- Category: Airplane
- Serial number: LJ 354
- Airframe hours: 10540
- Engines: P&W PT6A-20 550 horsepower turbo prop
- Damage: Substantial damage
- Flight: Part 135
- Registered owner: Mayo Aviation Inc.
- Airworthiness certificate: Standard, Normal
- Last inspection: AAIP, September 6, 1983, 11 hours before
- Departed: DEN, DENVER, CO
- Flight plan: IFR
- Airport: 3V1, Burlington Municipal, runway 13, 3,600 × 50 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 26; airline transport; airplane ratings: multi-engine land; instrument ratings: airplane; medical: class 1, valid medical--no waivers/lim.; seat: left; flight hours: 3,030 total, 1,200 in this make and model, 2,860 as pilot in command, 114 in the last 90 days, 1 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Night/dark
- Wind: 310° at 20 knots
- Visibility: 15 statute miles
- Lowest ceiling: none
- Temperature: 64 °F, dew point 54 °F
- Altimeter: 29.00 inHg
- Observed at: GLD, 28 nm away

## FAA reports on this event (1)

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

- [Accident 19830910048159A](https://openairdocs.org/incident/19830910048159A), Sep 10, 1983: Beech B90, Burlington, CO, Substantial damage. Pilot attempted downwind landing. Propellers would not reverse and aircraft ran off end of runway.

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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