LAX04LA049

NTSB accident investigation · Piper PA-44-180 · Phoenix, AZ · November 20, 2003

Accident · No injuriesLimited investigationFinal report
Date
November 20, 2003, 11:03 local (18:03 UTC)
Place
Phoenix, AZ
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Takeoff
Aircraft
N971PAPiper PA-44-180
Weather
Visual (VMC) · Day
Status
Completed · report December 28, 2004
Report
Approved by Office Director
Parties
Federal Aviation Administration
FAA report
20031120033779A
Case key
58368

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 flight instructor's inadequate supervision of the flight and delayed remedial action, which resulted in a loss of directional control. The reason for the partial power loss in the left engine was not determined.

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 engine powerTakeoff - roll/run
Reason for occurrence undetermined
1 engineFactor
Loss of control - on ground/waterTakeoff - roll/run
Supervision - inadequatePilot in command(cfi)Cause
Remedial action - inadequatePilot in command(cfi)Cause
Directional control - not maintainedPilot in command(cfi)Cause
Ground loop/swerve - not correctedPilot in command(cfi)
On ground/water encounter with terrain/waterTakeoff - roll/run
Terrain condition - ground
Gear collapsedLanding - roll
Landing gear,main gear - overload

Analysis

The airplane veered off of the runway after the left engine lost power during the takeoff roll. The purpose of the flight was an intermediate stage-check for the student, prior to his multi-engine checkride. The preflight and run-up were uneventful. Approximately 5 seconds after the takeoff roll commenced, the left engine lost power and the airplane veered to the left. The CFI assumed control of the airplane, closing both throttles. The airplane continued turning to the left and the airplane departed the runway surface. The right main gear collapsed and the right engine impacted the ground and stopped. The left engine was idling after the airplane came to a stop. The left engine was test-run following the accident; no mechanical malfunctions were noted.

Factual narrative

On November 20, 2003, at 1103 mountain standard time, a Piper PA 44-180, N971PA, veered off the runway during takeoff from the Deer Valley Airport (DVT), Phoenix, Arizona, collapsing the right main landing gear. Pan Am International Flight Academy was operating the flight under the provisions of 14 CFR Part 91. The certified flight instructor (CFI) and one commercial student were not injured; the airplane sustained substantial damage. Visual meteorological conditions prevailed and no flight plan had been filed. The local area flight was originating at the time.

The Federal Aviation Administration (FAA) coordinator reported that the CFI and student were departing from runway 7R. During the takeoff roll, the airplane departed the runway to the left and came to rest in a dirt area next to the runway. The nose of the airplane was approximately 180 degrees from its original takeoff heading.

In a written statement, the CFI reported that the purpose of the flight was for the student's intermediate stage check for a multiengine rating. After an uneventful run-up, the student powered up both engines and began the takeoff roll. The left engine sputtered and the airplane veered to the left. At this time, the CFI assumed control of the airplane and retarded both throttles. The airplane departed the runway 60 degrees left of the centerline. It traveled into the dirt and spun to the left, collapsing the right gear, and then the right engine impacted the ground and stopped. The left engine was running at idle. The CFI felt the accident could have been prevented if he had taken control of the airplane sooner. Furthermore, the CFI felt an emergency briefing covering all takeoff roll emergencies would assist in preventing future accidents.

A post accident examination of the left engine by a mechanic and a test run did not reveal any mechanical malfunction that would have resulted in the partial loss of power.

Aircraft

Registration
N971PA
Reported as
Piper PA-44-180
Category
Airplane
Serial number
4496031
Airframe hours
2,506.8
Engines
Lycoming O-360, 180 horsepower, reciprocatingLycoming L0-360, 180 horsepower, reciprocating
Damage
Substantial damage
Flight
Instructional · Part 91
Registered owner
DGV Holdings
Airworthiness certificate
Standard, Normal
Last inspection
100 hour · October 31, 2003 · 34.5 hours before
Departed
KDVT · Phoenix, AZ
Destination
KDVT · Phoenix, AZ
Airport
KDVT · Deer Valley Airport, runway 7R, 8,208 × 100 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 · 2

As NTSB recorded them. NTSB leaves out names.

Role
Flight instructor
Age
38
Injuries
None
Certificates
Airline transport, Flight instructor
Airplane ratings
Multi-engine land, Single-engine land
Instrument ratings
Airplane
Medical
Class 1, Valid Medical--w/ waivers/lim
Last flight review
August 25, 2003
Seat
Right
Flight hours
2,490 total · 160 in this make and model · 2,390 as pilot in command · 105 in the last 90 days · 51 in the last 30 days · 1 in the last 24 hours
Role
Student pilot
Age
34
Injuries
None
Certificate
Commercial
Airplane ratings
Single-engine land
Medical
Class 1, Valid Medical--w/ waivers/lim
Last flight review
October 22, 2003
Seat
Left
Flight hours
324 total · 10 in this make and model · 223 as pilot in command · 127 in the last 90 days · 15 in the last 30 days

Weather

Conditions
Visual (VMC) · Day
Wind
Calm
Visibility
10 statute miles
Lowest ceiling
None
Temperature
70 °F, dew point 37 °F
Altimeter
29.98 inHg

FAA reports on this event · 1

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