LAX01LA183

NTSB accident investigation · North American AT-6 D · Prescott, AZ · May 5, 2001

Accident · No injuriesLimited investigationFinal report
Date
May 5, 2001, 11:15 local (18:15 UTC)
Place
Prescott, AZ
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N7421CNorth American AT-6 D
Weather
Visual (VMC) · Day
Status
Completed · report February 25, 2003
Report
Approved by Office Director
Parties
FEDERAL AVIATION ADMINISTRATION
FAA report
20010505010569A
Case key
52305

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 pilot's inadequate compensation for an existing crosswind condition.

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 - flare/touchdown
Compensation for wind conditions - inadequatePilot in command(cfi)Cause
Weather condition - crosswind
On ground/water encounter with terrain/waterLanding - roll
Object - airport sign/marker

Analysis

On touchdown the airplane was struck by a gust of wind. The CFI aborted the landing and the airplane struck taxiway signs, traveled through a ditch and came to rest on the opposite side of the ditch on it's landing gear. The purpose of the flight was to provide transition training for the front seat pilot who had recently purchased a similiar airplane. The CFI reported that the previous landings had been on runway 21L, and that the front seat pilot had not done as well as the CFI had hoped. Prior to the accident landing, the local controller switched the active runway to 30 due to a change of wind direction. Reported METAR winds at PRC were from 350 degrees at 9 knots gusting to 18 knots. The CFI was flying the airplane on the accident landing. The airplane touched down in a slight crab. Before the CFI could straighten the airplane it departed the runway. He attempted to go-around and then aborted the go-around due to a ditch off the right side of the runway.

Factual narrative

On May 5, 2001, at 1115 hours mountain standard time, a North American AT-6D, N7421C, sustained substantial damage when it struck taxiway signs and a ditch on the landing rollout from runway 30 at the Ernest A. Love Field, Prescott, Arizona. The pilot was operating the borrowed airplane under the provisions of 14 CFR Part 91. The certified flight instructor (CFI) pilot and commercial pilot were not injured. The local flight departed Prescott about 1100. Visual meteorological conditions prevailed and no flight plan had been filed.

According to the Federal Aviation Administration (FAA) accident coordinator, the commercial pilot trainee recently purchased a similar airplane. The purpose of the flight was to receive transition training flight instruction to include takeoffs and landings.

In the CFI's written statement to the Safety Board, he stated that the previous landings had been on runway 21L and the winds were variable at 6 knots. As the day progressed the winds started to change direction and increase in velocity. The CFI stated that when the tower controller changed the active runway to 30, winds were from 350 degrees at 9 knots gusting to 18 knots.

The CFI stated that on the accident landing there were no discrepancies noted until the airplane was struck by a gust of wind just as it touched down. He initiated a go-around and then decided to abort the go-around due to a ditch off to the right side of the runway. The CFI stated that he had not been aware of the ditch. He applied full opposite rudder and brake, but was not able to control the airplane. The CFI reported that as the airplane went to the right towards the ditch, it struck taxi signs. The airplane "traveled through the ditch and out the opposite side."

The FAA inspector interviewed the CFI. The CFI stated that the previous landings were three-point landings, and that they hadn't gone as well as he had hoped they would. The CFI reported that the accident landing was to be a "wheel landing." When the airplane touched down it was in a slight crab. Before he could straighten the airplane it departed the runway to the right. The CFI attempted to regain directional control; however, the controls were "stiff" as if the student pilot had not released the controls. The airplane was taxied to the ramp by the CFI.

Aircraft

Registration
N7421C
Reported as
North American AT-6 D
Category
Airplane
Serial number
42-85599
Airframe hours
2,146
Engine
Pratt & Whitney 1340, 600 horsepower, reciprocating
Damage
Substantial damage
Flight
Instructional · Part 91
Operator
William S. Modes
Registered owner
Edward Modes
Airworthiness certificate
Standard, Normal
Last inspection
100 hour · April 18, 2001 · 4 hours before
Departed
PRC · Prescott, AZ
Destination
PRC · Prescott, AZ
Airport
PRC · Ernest A. Love Field, runway 30, 4,408 × 75 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
43
Injuries
None
Certificates
Commercial, Flight instructor
Airplane ratings
Single-engine land, Multi-engine land
Instrument ratings
Airplane
Medical
Class 2, Valid Medical--w/ waivers/lim
Last flight review
May 18, 2000
Seat
Rear
Flight hours
3,357 total · 2,473 in this make and model · 30 in the last 90 days · 10 in the last 30 days
Role
Pilot
Age
72
Injuries
None
Certificate
Commercial
Airplane ratings
Multi-engine land, Single-engine sea, Single-engine land
Instrument ratings
Airplane
Medical
Class 3, Valid Medical--w/ waivers/lim
Seat
Front
Flight hours
13,250 total

Weather

Conditions
Visual (VMC) · Day
Wind
350° at 9 knots, gusting 16
Visibility
10 statute miles
Lowest ceiling
None
Temperature
66 °F, dew point 18 °F
Altimeter
30.05 inHg
Observed at
PRC

FAA reports on this event · 1

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