SEA08CA018

NTSB accident investigation · Piper PA-18-150 · Stockton, CA · November 1, 2007

Accident · No injuriesData collectionFinal report
Date
October 31, 2007, 17:30 local (Nov 1, 2007, 00:30 UTC)
Place
Stockton, CA
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Taxi
Aircraft
N4153MPiper PA-18-150
Weather
Visual (VMC) · Day
Status
Completed · report December 20, 2007
Report
Approved by Office Director
FAA report
20071031827489A
Case key
67013

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 clearance from a ditch while taxiing. Contributing factors were the pilot's inadequate visual lookout and the ditch.

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/waterTaxi - to takeoff
Terrain condition - ditchFactor
Clearance - not maintainedPilot in commandCause
Visual lookout - inadequatePilot in commandFactor
Nose overTaxi - to takeoff

Analysis

The pilot reported that while taxing the tailwheel-equipped airplane into position for takeoff from a private airstrip, the main landing gear struck a ditch stopping the aircraft's forward movement almost instantly. Subsequently, the aircraft nosed over and came to rest in an inverted position. Examination of the aircraft by the pilot revealed that the rudder and two lift struts were bent. The pilot reported no mechanical anomalies with the aircraft at the time of the accident.

Factual narrative

The pilot reported that while taxing the tailwheel-equipped airplane into position for takeoff from a private airstrip, the main landing gear struck a ditch stopping the aircraft's forward movement almost instantly. Subsequently, the aircraft nosed over and came to rest in an inverted position. Examination of the aircraft by the pilot revealed that the rudder and two lift struts were bent. The pilot reported no mechanical anomalies with the aircraft at the time of the accident. The pilot stated in the Recommendation (How could this accident/incident have been prevented?) section of the Pilot/Operator Aircraft Accident Report (NTSB Form 6120.1) "better inspection of surface prior to taxiing."

Aircraft

Registration
N4153M
Reported as
Piper PA-18-150
Category
Airplane
Serial number
1809042
Engine
Lycoming O-320-A2B, 150 horsepower, reciprocating
Damage
Substantial damage
Flight
Business · Part 91
Operator
David A. Kirsten
Registered owner
Kirsten Co LLC
Airworthiness certificate
Standard, Normal
Departed
PVT · Stockton, CA
Airport
NONE · Private Airstrip

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
Seat
Front
Flight hours
3,000 total · 1,000 in this make and model · 25 in the last 90 days · 8 in the last 30 days

Weather

Conditions
Visual (VMC) · Day
Wind
Calm
Lowest ceiling
None
Temperature
75 °F
Observed at
PLT

FAA reports on this event · 1

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