ANC02LA027

NTSB accident investigation · Piper PA-18 · Chickaloon, AK · March 28, 2002

Accident · No injuriesLimited investigationFinal report
Date
March 28, 2002, 15:00 local (19:00 UTC)
Place
Chickaloon, AK
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N5408YPiper PA-18
Weather
Visual (VMC) · Day
Status
Completed · report August 26, 2002
Report
Approved by Office Director
NTSB office
Alaska Regional Office
Parties
Anchorage FSDO
Case key
54454

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 inadequate supervision of the student pilot by the instructor. Factors associated with the accident are the snow-covered runway and the loss of directional control by the student pilot.

Analysis

During a student training flight, the instructor and student overflew the accident airport, looking for a suitable landing area. The runway was snow-covered in some areas, and plowed in others. Snow berms of varying heights were present adjacent to the runway, and there were patches of ice on the runway. After a smooth landing the student lost directional control on an icy portion of the runway. The instructor took control but was unable to arrest the skid and the airplane's left wing struck the windsock pole. After the impact with the pole, the airplane spun to the left, and the right elevator struck a snow berm.

Factual narrative

On March 28, 2002, about 1500 Alaska standard time, a wheel-equipped Piper PA-18 airplane, N5408Y, sustained substantial damage during the landing roll at the Skelton Airstrip, about 35 miles northeast of Chickaloon, Alaska. The airplane was being operated by the student pilot as a visual flight rules (VFR) instructional flight under Title 14, CFR Part 91, when the accident occurred. The student pilot and the certificated flight instructor were not injured. Visual meteorological conditions prevailed, and a visual flight rules (VFR) flight plan was filed. The flight originated at the Palmer Municipal Airport, Palmer, Alaska, about 1100.

During a telephone conversation with the National Transportation Safety Board (NTSB) investigator-in-charge (IIC), on April 1, the flight instructor said when she and the student flew over the Skelton airstrip, they discussed suitable landing sites. The runway had varying degrees of snow coverage, some areas appeared to have been plowed, and other areas had high snow berms. After discussing what they thought would be a suitable landing site, the student started the approach, landing to the west. The student landed the airplane on a section of the runway different from the section the instructor had expected, and the airplane skidded on the ice. The flight instructor took control of the airplane, but she was not able to control the skid. The left wing of the airplane struck the windsock pole. She said the student told her where he landed was where he thought they had agreed upon.

During a telephone conversation with the IIC on April 1, the student pilot's mechanic said both wing spars, and the tail of the airplane were damaged in the accident.

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 maintainedDual studentFactor
Airport facilities,runway/landing area condition - snow coveredFactor
Supervision - inadequatePilot in command(cfi)Cause
On ground/water collision with objectLanding - roll
Object - pole

Aircraft

Registration
N5408Y
Reported as
Piper PA-18
Category
Airplane
Serial number
18-8171
Airframe hours
3,858
Engine
Lycoming O-320-A2B, 150 horsepower, reciprocating
Damage
Substantial damage
Flight
Instructional · Part 91
Operator
Charles S. Lee
Registered owner
Charles S. Lee
Airworthiness certificate
Standard, Normal
Last inspection
Annual · March 4, 2002 · 4 hours before
Departed
PAAQ · Palmer Muni, AK
Destination
PAZK · Skelton, AK
Flight plan
VFR
Airport
PAZK · Eureka Skelton, runway 21, 2,400 × 60 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 · 2

As NTSB recorded them. NTSB leaves out names.

Role
Flight instructor
Age
50
Injuries
None
Certificates
Flight instructor, Airline transport
Airplane ratings
Multi-engine sea, Single-engine sea, Multi-engine land, Single-engine land
Instrument ratings
Airplane
Medical
Class 2, Valid Medical--w/ waivers/lim
Last flight review
February 20, 2002
Seat
Rear
Flight hours
9,600 total · 350 in this make and model · 9,300 as pilot in command · 115 in the last 90 days · 58 in the last 30 days · 0 in the last 24 hours
Role
Student pilot
Age
44
Injuries
None
Certificate
Student
Medical
Class 3, Valid Medical--w/ waivers/lim
Seat
Front
Flight hours
69 total · 63 in this make and model · 30 as pilot in command · 6 in the last 90 days · 4 in the last 30 days

Weather

Conditions
Visual (VMC) · Day
Visibility
10 statute miles
Lowest ceiling
None
Temperature
10 °F

Docket · 1

The files NTSB released with the investigation on July 24, 2002, on NTSB’s docket system: statements, records, photos and specialists’ reports. 544 KB in all.

Other investigations on N5408Y · 7

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

NTSB GAA19CA564Accident · No injuriesData collectionFinal reportSkwentna, AKThe pilot's improper decision to depart from an off-airport surface covered with standing water, which resulted in a noseover.Sep 23, 2019 · Substantial damageNTSB GAA16CA440Accident · No injuriesData collectionFinal reportPalmer, AKThe pilot's excessive brake application during the landing roll resulting in a nose over.Aug 19, 2016 · Substantial damageNTSB ANC08LA075Accident · Serious injuriesLimited investigationFinal reportSkwentna, AKThe pilot's failure to maintain directional control during the takeoff roll and liftoff, which resulted in a collision with trees and the ground.Jun 22, 2008 · Substantial damageNTSB ANC05CA084Accident · No injuriesData collectionFinal reportPamler, AKThe student pilot's failure to obtain/maintain adequate airspeed during takeoff-initial climb, which resulted in an in-flight collision with trees. Factors associated with the accident are a tailwind and diminished braking capability.Jun 11, 2005 · Substantial damageNTSB ANC84LA102Accident · Minor injuriesLimited investigationFinal reportBear Creek, AKThe acft crashed into a river bank during an attempted go-around. The plt reported that upon initial touchdown the acft bounced and he applied full throttle. The engine reportedly responded with a maximum RPM of about 1600. The acft bouncedagain on the…Jun 24, 1984 · Substantial damageNTSB ANC74DAG66Accident · Minor injuriesClosedNondalton, AKOct 1, 1973 · Substantial damageNTSB ANC68F0023Accident · Serious injuriesClosedMcgrath, AKMar 6, 1967 · Substantial damage