# NTSB SEA89LA020: Gates Learjet 25B, N143CK, Bend, OR, November 17, 1988

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: November 17, 1988, 07:35 local (15:35 UTC)
- Place: Bend, OR
- Location: 44.0582° N, 121.3153° W: Placed by OpenAirDocs: center of Bend, OR, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=44.0582&lon=-121.3153&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 4 uninjured
- Status: Completed, report November 24, 1989
- Report: Approved by Office Director
- NTSB case key (mKey): 40958
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=SEA89LA020
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/40958/pdf
- Page: https://openairdocs.org/ntsb/SEA89LA020

## Sequence of events

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

- Overrun, landing - roll
  - airport facilities,runway/landing area condition - icy (cause)
  - air/ground communications - inadequate, copilot/second pilot (cause)
  - thrust reverser - not installed
  - misc eqpt/furnishings,parachute/drag chute - inoperative (contributing factor)
  - supervision - inadequate, pilot in command (contributing factor)
  - in-flight planning/decision - improper, pilot in command (cause)
- On ground/water collision with object, landing - roll
  - object - fence (contributing factor)
  - terrain condition - ditch (contributing factor)
- Nose gear collapsed, landing - roll
  - landing gear,main gear - overload

## Analysis

THE PILOT VISUALLY INSPECTED THE RUNWAY WHILE MAKING A LOW PASS. HE REPORTED AFTERWARD THAT HE SAW NO EVIDENCE OF ICE OR SNOW ON THE RUNWAY. THE COPILOT CALLED UNICOM BUT WAS TOLD, WHILE THE AIRCRAFT WAS ON SHORT FINAL, THAT THE WINDS WERE CALM AND THE FAVORED RUNWAY WAS 16. THE COPILOT DID NOT ASK UNICOM ABOUT THE EXISTING RUNWAY CONDITIONS. DURING LANDING ROLL, ABOUT 2,000 FEET BEYOND THE LANDING THRESHOLD, THE AIRCRAFT BEGAN TO FISH TAIL AND SKID. THE PILOT WAS UNABLE TO STOP THE AIRCRAFT AND AN OVERRUN OCCURRED. DURING THE OVERRUN, THE AIRCRAFT STRUCK A BARBED WIRE FENCE AND THEN CAME TO REST IN A DITCH. AFTER THE ACCIDENT, BLACK ICE WAS FOUND TO BE PRESENT ON THE LAST ONE HALF OF THE RUNWAY. THIS AIRCRAFT WAS NOT EQUIPPED WITH THRUST REVERSERS. THE DRAG CHUTE WAS PLACARDED INOPERATIVE.

## Aircraft

- Registration: [N143CK](https://openairdocs.org/aircraft/N143CK), registered now, S/N 143, built 1973 (OpenAirDocs)
- Reported make and model: GATES LEARJET 25B
- Registry model: [Gates Lear Jet 25B](https://openairdocs.org/model/gates-lear-jet-25b) (registry code 5170511) (OpenAirDocs)
- Registry engine: [GE CJ610-5&6](https://openairdocs.org/engine/ge-cj610-5-6) (registry code 30013, turbo-jet) (OpenAirDocs)
- Category: Airplane
- Serial number: 143
- Airframe hours: 7631
- Engines: GE CJ610-6 2650 lbs thrust turbo jet
- Damage: Substantial damage
- Flight: Part 135
- Registered owner: Pacific Flight, Inc.
- Airworthiness certificate: Standard, Transport
- Last inspection: 100 hour, September 20, 1988, 76 hours before
- Departed: MFR, MEDFORD, OR
- Destination: S07, BEND, OR
- Flight plan: IFR
- Airport: S07, Bend Municipal, runway 16, 5,000 × 75 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 49; flight instructor, commercial, 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: 8,753 total, 2,573 in this make and model, 8,303 as pilot in command, 148 in the last 90 days, 26 in the last 30 days

## Weather

- Conditions: Visual (VMC), Day
- Wind: calm
- Visibility: 15 statute miles
- Lowest ceiling: none
- Temperature: 36 °F
- Altimeter: 29.00 inHg

## 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 19881117050969A](https://openairdocs.org/incident/19881117050969A), Nov 17, 1988: Lear 25B, Redmond, OR, Substantial damage. Unable to stop on icy runway, skidded off end into a ditch. UNICOM operator failed to advise flight of iced 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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