LAX94LA329

NTSB accident investigation · Piper PA-38-112 · Oakdale, CA · August 20, 1994

Accident · Serious injuriesLimited investigationFinal report
Date
August 19, 1994, 18:45 local (Aug 20, 1994, 01:45 UTC)
Place
Oakdale, CA
Injuries
2 serious
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N2436NPiper PA-38-112
Weather
Visual (VMC) · Day
Status
Completed · report January 26, 1995
Report
Approved by Office Director
FAA report
19940819022289A
Case key
28834

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

1) The flight instructor's failure to attain a proper touchdown point on the runway, 2) his failure to initiate a timely go around, and 3) his inadequate supervision of the flight.

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.

OverrunLanding - roll
Weather condition - tailwind
Proper touchdown point - not attainedPilot in command(cfi)Cause
Go-around - delayedPilot in command(cfi)Cause
Supervision - inadequatePilot in command(cfi)Cause
On ground/water encounter with terrain/waterLanding - roll
Terrain condition - ditch

Analysis

The student reported that the flight instructor intentionally entered the pattern for a downwind landing to simulate a power off forced landing downwind on the 3,000-foot-long runway. While on downwind, the instructor simulated the power loss by either pulling the mixture control to idle cut off or reducing the throttle. The student said the aircraft landed very long on the runway and the instructor added power to takeoff again when it became apparent that insufficient runway remained to stop on the ground. The aircraft ran off the departure end of the runway and collided with a canal ditch embankment.

Factual narrative

On August 19, 1994, at 1845 Pacific daylight time, a Piper PA38- 112, N2436N, collided with ground obstructions during a landing overrun at the Oakdale, California, airport. The aircraft was owned and operated by Diamond K Aviation of Oakdale and was on a local area instructional flight. The aircraft incurred substantial damage. The certificated airline transport pilot flight instructor and his dual primary student sustained serious injuries. The flight originated at the Oakdale airport about 1800 hours on the day of the accident as a local area flight.

In a verbal statement to Federal Aviation Administration (FAA) inspectors, the student reported that the flight instructor intentionally entered the pattern for a downwind landing on runway 10 to simulate a power off forced landing downwind on the 3,000-foot-long runway. While on downwind, the instructor simulated the power loss by either pulling the mixture control to idle cut off or reducing the throttle. The student said the aircraft landed very long on the runway and the instructor added power to takeoff again when it became apparent that insufficient runway remained to stop on the ground. The aircraft ran off the departure end of the runway and collided with a canal ditch embankment. The winds were from 270 degrees at 10 gusting to 15 knots.

Aircraft

Registration
N2436N
Reported as
Piper PA-38-112
Category
Airplane
Serial number
38-7900841
Airframe hours
4,580
Engine
Lycoming O-235-L2C, 112 horsepower, reciprocating
Damage
Substantial damage
Flight
Instructional · Part 91
Operator
Diamond K Aviation
Registered owner
Diamond K Aviation
Airworthiness certificate
Standard, Normal
Last inspection
Annual · June 10, 1994 · 20 hours before
Departed
O27
Destination
O27
Airport
O27 · Oakdale, runway 10, 3,020 × 66 ft, asphalt

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
37
Certificates
Flight instructor, Airline transport
Airplane ratings
Single-engine land, Multi-engine land
Instrument ratings
Airplane
Medical
Class 1, Valid Medical--no waivers/lim.
Seat
Right

Weather

Conditions
Visual (VMC) · Day
Wind
270° at 5 knots, gusting 10
Visibility
30 statute miles
Lowest ceiling
None
Temperature
95 °F

FAA reports on this event · 1

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