ANC04CA094

NTSB accident investigation · Cessna 170B · Anchorage, AK · August 23, 2004

Accident · No injuriesData collectionFinal report
Date
August 22, 2004, 20:40 local (Aug 23, 2004, 04:40 UTC)
Place
Anchorage, AK
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N8238ACessna 170B
Weather
Visual (VMC) · Day
Status
Completed · report December 28, 2004
Report
Approved by Office Director
NTSB office
Alaska Regional Office
FAA report
20040822026489A
Case key
60028

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's failure to maintain directional control during the landing roll due to the restricted movement of the rudder pedals from his headset cord, which resulted in the airplane exiting the runway and nosing down.

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.

Loss of control - on ground/waterLanding - roll
Directional control - not maintainedPilot in commandCause
Flt control syst,rudder control - movement restricted
On ground/water encounter with terrain/waterLanding - roll
Terrain condition - rough/uneven
Nose downLanding - roll

Analysis

The private pilot said during the landing roll the airplane suddenly exited the runway to the left for no apparent reason. He reported that once off the runway, the airplane nosed down, and came to a stop. The pilot said there were no known mechanical anomalies with the airplane prior to the accident. The airplane sustained structural damage to the left wing, landing gear attachments, and fuselage. An airport police officer who interviewed the pilot at the accident site reported the pilot told him he was unable to use the rudder pedals because his headset cord was wrapped around them.

Factual narrative

On August 22, 2004, about 2040 Alaska daylight time, a Cessna 170B airplane, N8238A, sustained substantial damage when the pilot lost directional control, and the airplane nosed down during the landing roll on the Lake Hood Strip at Anchorage, Alaska. The airplane was being operated by the pilot as a visual flight rules (VFR) personal cross-country flight under Title 14, CFR Part 91 when the accident occurred. The solo private pilot was not injured. Visual meteorological conditions prevailed, and no flight plan was filed. The flight departed Ninilchik Airport, Ninilchik, Alaska, about 1845.

During a telephone conversation with the National Transportation Safety Board (NTSB) investigator-in-charge (IIC) on August 26, and reiterated in a written statement dated august 31, the pilot said during the landing roll the airplane suddenly exited the runway to the left for no apparent reason. He said once off the runway, the airplane nosed down, and came to a stop. He said the airplane dropped down onto the tailwheel, and he exited the airplane. The pilot said there were no known mechanical anomalies with the airplane prior to the accident, and that the airplane sustained structural damage to the left wing, landing gear attachments, and fuselage.

In a written report, prepared by an airport police officer who interviewed the pilot at the accident site on August 22, the officer reported the pilot told him he was unable to use the rudder pedals because his headset cord was wrapped around them.

Aircraft

Registration
N8238A
Reported as
Cessna 170B
Category
Airplane
Serial number
25090
Engine
Continental O-300-A, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Operator
Terrence Moore
Registered owner
Terrence J. Moore
Airworthiness certificate
Standard, Normal
Departed
NIN · Ninilchik, AK
Destination
Z41 · Anchorage, AK
Airport
Z41 · Lake Hood Strip, runway 13, 1,078 × ft

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
56
Injuries
None
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3
Flight hours
273 total · 65 in this make and model · 20 in the last 90 days · 20 in the last 30 days

Weather

Conditions
Visual (VMC) · Day

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 N8238A · 1

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