SEA98LA043

NTSB accident investigation · Piper PA-38-112 · Dubois, ID · March 11, 1998

Accident · No injuriesLimited investigationFinal report
Date
March 11, 1998, 13:30 local (20:30 UTC)
Place
Dubois, ID
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Approach
Aircraft
N2438LPiper PA-38-112
Weather
Visual (VMC) · Day
Status
Completed · report January 10, 2000
Report
Approved by Office Director
FAA report
19980311006769A
Case key
42761

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 student pilot's misjudgment of altitude/clearance and overloading of the nose gear. A contributing factor was the snow-covered turf runway.

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.

Dragged wing,rotor,pod,float or tail/skidGo-around (vfr)
Airport facilities,runway/landing area condition - snow coveredFactor
Altitude/clearance - misjudgedPilot in commandCause
Nose gear collapsedLanding - roll
Landing gear,nose gear - overloadCause

Analysis

The student pilot had reviewed the intended route of flight, including the Dubois airport, previous to departing Rexburg on his cross country solo. After landing first at Pocatello, and then Arco, he proceeded to Dubois where he found the airport and its single runway (16/34) snow covered. The Airport/Facility Directory effective at the time of the accident advised the reader that 'no winter maintenance' was available and the informational diagram of the Dubois airport (which was Xeroxed on the back side of the student's flight planner log for the accident trip) advised that the 'airport is closed from November to April because of snow.' The student 'decided to do a fly-by (as a missed landing) about 20'-15' above the runway' and reported that when he 'got to the transition point (he) applied full power and pulled the yoke back. Almost instantly, as the plane rotated, (he) felt drag as a wheel caught in the snow.' As the aircraft decelerated, rolling through the snow, the nose gear collapsed.

Factual narrative

On March 11, 1998, approximately 1330 mountain standard time, a Piper PA-38-112, N2438L, registered to Aero Technicians, Inc., and being flown by a student pilot on a supervised solo flight, dragged the left main wheel in snow during a go-around on runway 16 at the Dubois Municipal Airport, Dubois, Idaho. The aircraft then decelerated, settling to the snow-covered runway surface, during which the nose landing gear collapsed. The aircraft sustained substantial damage, and the student pilot was uninjured. Visual meteorological conditions existed and a VFR flight plan had been filed. The flight was to have been operated under 14CFR91, and originated from Rexburg, Idaho, approximately 1050, on the morning of the accident.

The student pilot, after landing first at Pocatello, then Arco, proceeded to Dubois where he found the airport snow covered. He then "decided to do a fly-by (as a missed landing) about 20'-15' above the runway." He further reported that "I thought I could see the approach lights. (Later I figured out it was sun reflection)," and that when "I got to the transition point I applied full power and pulled the yoke back. Almost instantly, as the plane rotated, I felt drag as a wheel caught in the snow."

The Dubois Municipal airport is served by a 4,600 foot long unlighted, turf runway. The Airport/Facility Directory effective at the time of the accident advised the reader that "no winter maintenance" was available at the airport (refer to ATTACHMENT I). Additionally, an informational diagram of the Dubois airport, which was Xeroxed on the back side of the student's flight planner log for the accident trip advised that the "airport is closed from November to April because of snow" (refer to attached Airport Chart).

The student pilot reported to the investigator-in-charge that he had reviewed the intended route of flight, including the Dubois airport, with his flight instructor approximately one week before the mishap. He also reported that there was no malfunction of the aircraft, its systems or powerplant during the accident.

Aircraft

Registration
N2438L
Reported as
Piper PA-38-112
Category
Airplane
Serial number
38-79A0703
Airframe hours
5,262
Engine
Lycoming O-235-L2C, 112 horsepower, reciprocating
Damage
Substantial damage
Flight
Instructional · Part 91
Operator
Perham, John, J.
Registered owner
Aero Technicians, Inc.
Airworthiness certificate
Standard, Utility; Standard, Normal
Last inspection
100 hour · February 13, 1998 · 45 hours before
Departed
U11 · Rexburg, ID
Flight plan
VFR
Airport
U41 · Dubois Municipal, runway 16, 4,600 × 100 ft, grass/turf

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
47
Certificate
Student
Medical
Class 3, Valid Medical--w/ waivers/lim
Seat
Left
Flight hours
24 total · 24 in the last 90 days · 20 in the last 30 days

Weather

Conditions
Visual (VMC) · Day
Wind
350° at 4 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
39 °F, dew point 27 °F
Altimeter
30.00 inHg
Observed at
U11, 27 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 N2438L · 1

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