# NTSB DEN89IA071: Beech E90, N87CH, Lander, WY, January 31, 1989

- Type: NTSB incident investigation
- Classification: Incident · No injuries · Incident investigation · Final report
- Date: January 30, 1989, 19:16 local (Jan 31, 1989, 02:16 UTC)
- Place: Lander, WY
- Coordinates: 42.829235, -108.720024 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=42.8292&lon=-108.7200&mi=10
- Phase of flight: [Initial climb](https://openairdocs.org/ntsb-phases/350) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 5 uninjured
- Status: Completed, report August 26, 1992
- Report: Approved by Office Director
- NTSB case key (mKey): 17616
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=DEN89IA071
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/17616/pdf
- Page: https://openairdocs.org/ntsb/DEN89IA071

## Probable cause

DEER ON THE RUNWAY.

## Sequence of events

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

- In flight collision with object, takeoff - initial climb
  - object - animal(s) (cause)
  - landing gear,main gear - distorted
- Gear not extended, landing - flare/touchdown
  - wheels up landing - intentional, pilot in command

## Analysis

ACFT WAS ON A MEDIVAC FLT AND WAS TAKING OFF ON RWY 03 AT LANDER, WY. DURING THE TAKEOFF ROLL, PLT SAW TWO DEER RUNNING ACROSS RWY AND ROTATED ACFT ABRUPTLY TO AVOID COLLISION. HE FELT 'MODERATE' IMPACT. AFTER DETERMINING LEFT MAIN LANDING GEAR HAD BEEN DAMAGED, PLT DIVERTED TO CASPER, WY, WHERE THERE WAS LONGER, WIDER RWYS AND CFR FACILITIES. AFTER BURNING OFF EXCESS FUEL, PLT MADE INTENTIONAL WHEELS-UP LANDING. ACFT WAS EVACUATED IN 40 SEC. POST ACC INVESTIGATION REVEALED PARTS OF THE LEFT MAIN LNDG GEAR AND TWO DEAD DEER ON THE TAKEOFF RWY AT LANDER.

## Aircraft

- Registration: [N87CH](https://openairdocs.org/aircraft/N87CH), registered now, S/N LW-20, built 1972 (OpenAirDocs)
- Reported make and model: BEECH E90
- Registry model: [Beech E-90](https://openairdocs.org/model/beech-e-90) (registry code 1152914) (OpenAirDocs)
- Registry engine: [U/A Canada PT6A-27-28](https://openairdocs.org/engine/u-a-canada-pt6a-27-28) (registry code 61504, turbo-prop) (OpenAirDocs)
- Category: Airplane
- Serial number: LW-20
- Airframe hours: 6137
- Engines: P&W PT6A-28 550 horsepower turbo prop
- Damage: Minor damage
- Flight: Part 135
- Registered owner: William J. Mayo
- Airworthiness certificate: Standard, Normal
- Last inspection: Continuous airworthiness, January 4, 1989, 24 hours before
- Departed: LND
- Destination: DEN, DENVER, CO
- Flight plan: IFR
- Airport: LND, Hunt Field, runway 3, 5,100 × 75 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 32; commercial, flight instructor, airline transport; airplane ratings: single-engine land, multi-engine land; instrument ratings: airplane; medical: class 1, valid medical--no waivers/lim.; seat: left; flight hours: 5,460 total, 700 in this make and model, 4,951 as pilot in command, 49 in the last 90 days, 17 in the last 30 days, 5 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Night/dark
- Visibility: 50 statute miles
- Lowest ceiling: none
- Temperature: 50 °F

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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