# NTSB SEA85LA029: Cessna 172M, N4436R, Sultan, WA, December 10, 1984

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: December 9, 1984, 16:30 local (Dec 10, 1984, 00:30 UTC)
- Place: Sultan, WA
- Coordinates: 47.85025, -121.740745 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=47.8503&lon=-121.7407&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 40096
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=SEA85LA029
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/40096/pdf
- Page: https://openairdocs.org/ntsb/SEA85LA029

## 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 - snow covered (contributing factor)
  - in-flight planning/decision - inadequate, pilot in command (cause)
  - proper touchdown point - not attained, pilot in command (cause)
  - weather condition - tailwind (contributing factor)
  - airspeed - excessive, pilot in command (cause)
  - go-around - not performed, pilot in command (cause)
  - aborted landing - not possible, pilot in command
- On ground/water encounter with terrain/water, landing - roll
  - terrain condition - dirt bank/rising embankment

## Analysis

AN OVERRUN OCCURRED ON THE 2,000 FOOT AIRSTRIP DUE TO EXCESS APPROACH AND LANDING SPEED. A LIGHT COATING OF SNOW WAS PRESENT ON THE GRASS RUNWAY AND THE PILOT NEGLECTED TO RAISE THE FLAPS ADDING TO A LONGER LANDING ROLL AND MAKING BRAKING LESS EFFECTIVE. A 5 KNOT TAILWIND WAS ALSO PRESENT. AFTER TOUCHDOWN, THE PLT WAS UNABLE TO ABORT THE LANDING DUE TO OBSTACLES AT THE DEPARTURE END OF THE RUNWAY.THE ACFT ROLLED PAST THE END OF THE RUNWAY AND STRUCK AN EMBANKMENT AT A SLOW SPEED.

## Aircraft

- Registration: [N4436R](https://openairdocs.org/aircraft/N4436R), registered now, S/N 17263181, built 1974 (OpenAirDocs)
- Reported make and model: CESSNA 172M
- Registry model: [Cessna 172M](https://openairdocs.org/model/cessna-172m) (registry code 2072418) (OpenAirDocs)
- Registry engine: [Lycoming 0-320 series](https://openairdocs.org/engine/lycoming-0-320-series) (registry code 41508, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 17263181
- Airframe hours: 3139
- Engines: LYCOMING O-320-E2D 150 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Registered owner: Gerald Greer
- Airworthiness certificate: Standard, Utility; Standard, Normal
- Last inspection: Annual, October 6, 1984, 7 hours before
- Departed: PAE, EVERETT, WA
- Destination: WA64, SULTAN, WA
- Airport: WA64, Sky Harbor, runway 25, 2,000 × 140 ft, snow

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 42; private; airplane ratings: single-engine land; medical: class 3, valid medical--w/ waivers/lim; seat: left; flight hours: 297 total, 242 as pilot in command

## Weather

- Conditions: Visual (VMC), Day
- Wind: 90° at 5 knots
- Visibility: 30 statute miles
- Lowest ceiling: 3,500 ft broken
- Temperature: 39 °F

## 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 19841209075769A](https://openairdocs.org/incident/19841209075769A), Dec 9, 1984: Cessna 172M, Sultan, WA, Substantial damage. Landed long with too much speed and ran off end of wet runway into trees.

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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