LAX03LA042

NTSB accident investigation · Cessna 170B · Mobile, AZ · November 28, 2002

Accident · No injuriesLimited investigationFinal report
Date
November 28, 2002, 08:30 local (15:30 UTC)
Place
Mobile, AZ
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N4465BCessna 170B
Weather
Visual (VMC) · Day
Status
Completed · report December 28, 2004
Report
Approved by Office Director
Parties
Federal Aviation Administration
FAA report
20021128033259A
Case key
56138

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 pilot's improper compensation for the crosswind conditions at touchdown and failure to maintain proper alignment of the tail wheel equipped airplane during landing, which resulted in a ground loop. The crosswind was a contributory factor.

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
Weather condition - crosswind
Compensation for wind conditions - improperPilot in commandCause
Proper alignment - not maintainedPilot in commandCause
Ground loop/swerve - inadvertentPilot in commandCause
On ground/water encounter with terrain/waterLanding - roll
Terrain condition - berm
Nose overLanding - roll

Analysis

The airplane ground looped and nosed over while the pilot was performing touch-and-go practice takeoffs and landings at an abandoned gravel airstrip. While on approach, the pilot configured the airplane in a crab to the right, in an effort to counteract the right-quartering crosswind. On final approach, about 15 feet above ground level, the crosswind diminished. The airplane touched down on the runway surface while still in the right crab, with the right main landing gear making contact first. The airplane veered to the left, off the edge of the runway and the main landing gear impacted a dirt berm, resulting in a nose over. The airplane came to rest inverted. The pilot reported no pre impact mechanical malfunctions or failures with the airplane.

Factual narrative

On November 28, 2002, about 0830 mountain standard time, a Cessna 170B, N4465B, ground looped and nosed over while performing touch-and-go practice takeoffs and landings at an abandoned gravel airstrip near Mobile, Arizona. The private pilot was operating the airplane the under the provisions of 14 CFR Part 91. Neither the pilot nor passenger was injured; the airplane sustained substantial damage. The flight originated from the Phoenix Goodyear Airport, Goodyear, Arizona, about 0730 for the local area personal flight. Visual meteorological conditions prevailed, and a flight plan had not been filed.

In a written statement, the pilot reported that he was attempting to perform touch-and-go practice takeoffs and landings in his tail-wheel equipped airplane. He completed one touch-and-go without mishap, and began an approach for another landing. While on approach, he configured the airplane in a crab to the right in an effort to counteract the right-quartering crosswind. On final approach, about 15 feet above ground level, the crosswind diminished.

The airplane touched down on the runway surface while still in the right crab, with the right main landing gear making contact first. The tail moved to the right resulting in the airplane veering to the left, off the edge of the runway. The main landing gear impacted a dirt berm and nosed over. The airplane came to rest inverted. The airplane incurred damage to the wings, rudder, and landing gear box.

The pilot noted that he had previously preformed 70 to 80 practice landings on this particular airstrip, without mishap. The pilot thought that the accident could have been prevented if he had made a go-around, or properly used the rudder during the crosswind operation. The pilot reported no pre impact mechanical malfunctions or failures with the airplane.

Aircraft

Registration
N4465B
Reported as
Cessna 170B
Category
Airplane
Serial number
26809
Airframe hours
2,751.7
Engine
Continental O-300-A, 145 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Airworthiness certificate
Standard, Normal
Last inspection
Annual · September 10, 2002 · 2.1 hours before
Departed
GYR · Goodyear, AZ
Destination
Mobile, AZ
Airport
Private Strip

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
50
Injuries
None
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, Valid Medical--w/ waivers/lim
Last flight review
November 27, 2002
Seat
Left
Flight hours
180 total · 37 in this make and model

Weather

Conditions
Visual (VMC) · Day
Wind
70° at 15 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
66 °F, dew point 34 °F
Altimeter
30.20 inHg
Observed at
PHX, 30 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.