ANC04LA008

NTSB accident investigation · Cessna 170B · Manley Hot Sprg, AK · November 10, 2003

Accident · No injuriesLimited investigationFinal report
Date
November 10, 2003, 13:00 local (17:00 UTC)
Place
Manley Hot Sprg, AK
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N4448BCessna 170B
Weather
Visual (VMC) · Day
Status
Completed · report June 30, 2004
Report
Approved by Office Director
NTSB office
Alaska Regional Office
Parties
FAA-AL-FAI FSDO 01
FAA report
20031110027849A
Case key
58333

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

On this page

Probable cause

The NTSB’s determination of the probable cause, and any contributing factors.

The pilot's selection of unsuitable terrain for landing, which resulted in a nose over during the landing roll. A factor contributing to the accident was snow covered terrain at the landing strip.

Analysis

The private certificated pilot was landing on a private, snow-covered mining strip. During the landing roll, the main landing gear wheels broke through the snow crust, and the airplane nosed over, activating the airplane's emergency locator transmitter (ELT). The pilot indicated the airplane received damage to the propeller, wingtip, and rudder.

Factual narrative

On November 10, 2003, about 1300 Alaska standard time, a tundra tire-equipped Cessna 170B airplane, N4448B, sustained substantial damage when it nosed over during the landing roll at a remote airstrip, about 14.5 miles northeast of Manley Hot Springs, Alaska. The airplane was being operated as a visual flight rules (VFR) personal flight under Title 14, CFR Part 91, when the accident occurred. The airplane was operated by the pilot. The private certificated pilot, the sole occupant, was not injured. Visual meteorological conditions prevailed. No flight plan was filed, nor was one required.

During a telephone conversation with the National Transportation Safety Board (NTSB) investigator-in-charge (IIC), on November 12, a Federal Aviation Administration (FAA) aviation safety inspector, Fairbanks Flight Standards District Office (FSDO), reported that he contacted the pilot via telephone in Oregon. The FAA inspector reported that the pilot said he was landing on a private, snow-covered mining strip. The pilot told the inspector that during the landing roll, the main landing gear wheels broke through the snow crust, and the airplane nosed over, activating the airplane's emergency locator transmitter (ELT). The pilot indicated the airplane received damage to the propeller, wingtip, and rudder.

The closest official weather observation station is Tanana, Alaska, which is located 47 nautical miles west of the accident site. On 1252, an Aviation Routine Weather Report (METAR) was reporting, in part: Wind, 260 degrees (true) at 10 knots; visibility, 10 statute miles; 3,300 feet overcast; temperature, 27 degrees F; dew point, 18 degrees F; altimeter, 29.52 inHg.

The NTSB's Alaska Regional Office, Anchorage, Alaska, requested, but did not receive a Pilot/Operator Aircraft Accident Report, (NTSB Form 6120.1) from the pilot.

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.

On ground/water encounter with terrain/waterLanding - roll
Terrain condition - snow coveredFactor
Unsuitable terrain or takeoff/landing/taxi area - selectedPilot in commandCause
Nose overLanding - roll

Aircraft

Registration
N4448B
Reported as
Cessna 170B
Category
Airplane
Serial number
26792
Engine
Continental C-145, 145 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
John T. Larson
Airworthiness certificate
Standard, Normal
Departed
Fairbanks, AK
Destination
Manley Hot Sprg, AK
Airport
Eureka Creek

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
Injuries
None
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, Valid Medical--w/ waivers/lim
Seat
Left
Flight hours
250 total

Weather

Conditions
Visual (VMC) · Day
Wind
238° at 10 knots
Visibility
10 statute miles
Lowest ceiling
3,300 ft overcast
Temperature
27 °F, dew point 18 °F
Altimeter
29.52 inHg
Observed at
PATA, 47 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.

Other investigations on N4448B · 1

Matched to the same aircraft by N-number and date.