ANC93LA065

NTSB accident investigation · Cessna 172K · Rohn Roadhouse, AK · May 17, 1993

Accident · No injuriesLimited investigationFinal report
Date
May 16, 1993, 22:00 local (May 17, 1993, 06:00 UTC)
Place
Rohn Roadhouse, AK
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N736BYCessna 172K
Weather
Visual (VMC) · Day
Status
Completed · report May 17, 1994
Report
Approved by Office Director
NTSB office
Alaska Regional Office
FAA report
19930516014189A
Case key
2340

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

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Probable cause

The pilot in command's inadequate compensation for the wind conditions and allowing the airspeed to go below stalling speed in the landing configuration.

Sequence of events

NTSB’s coding before 2008: each occurrence and phase of flight, and the causes and factors under it. The codes are defined in NTSB’s coding manual.

UndershootLanding
Compensation for wind conditions - inadequatePilot in commandCause
Airspeed - inadequatePilot in commandCause
Nose gear collapsedLanding - flare/touchdown
Landing gear,nose gear - overload

Analysis

The airplane was equipped with a sportsman stol kit. The pilot was making an approach to an unimproved airstrip using an airspeed of 45 knots indicated. He stated the winds were light and variable to 5 knots and during the low passes he noticed only light 'bumps.' While on short final and just prior to touchdown, the airplane began to sink and he applied some power but not full throttle. The airplane struck the ground about 50 feet short of the airstrip in rough terrain and sheared the nose gear off and nosed over.

Factual narrative

On May 16, 1993, at 2200 Alaska daylight time, a wheel equipped Cessna 172K airplane, N736BY, registered to and operated by the Pilot in Command, crashed short of an unimproved airstrip near the Rohn Roadhouse located on the Tatina River. The personal flight, operating under 14 CFR Part 91, last departed the Rohn Roadhouse, Alaska, and the destination was the accident site. No flight plan was filed and visual meteorological conditions prevailed. The Commercial Certificated Pilot in Command and the passenger were not injured, and the airplane received substantial damage.

According to the Pilot in Command, the airplane was equipped with a Sportsman STOL kit and he was using a final approach airspeed of 45 knots. He made a number of low passes over the airstrip and noticed only light "bumps." While on short final, and just prior to touchdown, the airplane began to sink and he applied a boost of power, but not full power. The airplane struck the ground about 50 feet short of the airstrip in rough terrain. The nose gear sheared off and the airplane nosed over.

Aircraft

Registration
N736BY
Reported as
Cessna 172K
Category
Airplane
Serial number
R1722408
Engine
Continental IO-360-K, 210 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Operator
Hill, Dwight E.
Registered owner
Hill, Dwight E.
Airworthiness certificate
Standard, Normal
Last inspection
Annual · January 29, 1993
Destination
Tatina River, AK
Airport
Tatina River, runway 36, 700 × 50 ft, gravel

Matched to the registry by N-number and the event date; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
53
Certificate
Commercial
Airplane ratings
Single-engine land
Instrument ratings
Airplane
Medical
Class 3, Valid Medical--w/ waivers/lim
Seat
Left
Flight hours
775 total · 700 in this make and model · 746 as pilot in command · 11 in the last 90 days · 10 in the last 30 days · 3 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Visibility
50 statute miles
Lowest ceiling
None
Temperature
61 °F

FAA reports on this event · 1

The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.