LAX02LA156

NTSB accident investigation · Ham Pitts S-1C · Borrego Springs, CA · May 11, 2002

Accident · No injuriesLimited investigationFinal report
Date
May 11, 2002, 10:50 local (17:50 UTC)
Place
Borrego Springs, CA
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N1PHHam Pitts S-1C
Weather
Visual (VMC) · Day
Status
Completed · report September 30, 2003
Report
Approved by Office Director
Parties
FAA FSDO
FAA report
20020511010709A
Case key
54697

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 failure of the pilot to maintain control of the airplane during landing rollout resulting in a ground loop/swerve and a nose over. The soft terrain was a 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 - roll
Aircraft control - not obtained/maintainedPilot in commandCause
Ground loop/swerve - inadvertentPilot in commandCause
On ground/water encounter with terrain/waterLanding - roll
Terrain condition - softFactor
Nose overLanding - roll

Analysis

The tail wheel equipped airplane veered off runway 7 and nosed over after encountering soft soil while landing. The pilot was interviewed by telephone and reported that the landing was normal. Near the end of the landing roll on runway 7, the aircraft veered left off the runway. He said that he was unable to correct the alignment before the airplane departed the paved runway surface and it nosed over after encountering soft desert-like soil. The pilot stated that there were no mechanical malfunctions of the airplane. The airport manager reported the sky was clear and the winds were calm at the time of the accident.

Factual narrative

On May 11, 2002, at 1050 Pacific daylight time, an amateur-built Ham Pitts S-1C, N1PH, veered off runway 7 and nosed over after encountering soft soil while landing at the Borrego Springs, California, airport. The airplane, operated by the pilot under the provisions of 14 CFR Part 91 of the Federal Aviation Regulations, sustained substantial damage. The commercial pilot, the sole occupant, was not injured. Visual meteorological conditions prevailed at the time and included calm wind conditions. The cross-country personal flight originated at Santa Ana, California, at 1000, and was destined for Borrego Springs.

The pilot was interviewed by telephone and reported that the landing was normal. Near the end of the landing roll on runway 7, the aircraft veered left off the runway. He said that he was unable to correct the alignment before the airplane departed the paved runway surface and it nosed over after encountering soft desert-like soil. The pilot stated that there were no mechanical malfunctions of the airplane.

Through a written statement given by the pilot on May 23, 2002, he stated that as the aircraft veered left he applied full right rudder and brake; however, the aircraft continued into a ground loop. The ground loop caused him to go off of the runway where the aircraft hit the soft sand.

The airport manager reported that she saw the airplane touch down on runway 7, and that the landing appeared normal. The airplane was near the end of the ground roll at a slow speed when it veered off the pavement and nosed over. The manager noted that the wings and tail sustained damage. At the time of the accident, the sky was clear and the winds were calm.

Aircraft

Registration
N1PH
Reported as
Ham Pitts S-1C
Category
Airplane, amateur-built
Serial number
168H
Airframe hours
1,128
Engine
Lycoming O-360-A3A, 180 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Operator
Jeffrey Yeskin
Registered owner
Clark Foster
Airworthiness certificate
Special, Experimental (Special)
Last inspection
Annual · August 26, 2001 · 50 hours before
Departed
SNA · Santa Ana, CA
Destination
L08 · Borrego Springs, CA
Airport
L08 · Borrego Valley, runway 7, 5,000 × 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

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
38
Injuries
None
Certificate
Commercial
Airplane ratings
Single-engine land
Instrument ratings
Airplane
Medical
Class 2, Valid Medical--no waivers/lim.
Last flight review
February 25, 2002
Seat
Center
Flight hours
347 total · 24 in this make and model · 290 as pilot in command · 5 in the last 90 days · 1 in the last 30 days · 1 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
320° at 7 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
73 °F, dew point 46 °F
Altimeter
29.93 inHg
Observed at
KTRM, 25 nm away

Docket · 3

The files NTSB released with the investigation on July 29, 2003, on NTSB’s docket system: statements, records, photos and specialists’ reports. 708 KB in all.

FAA reports on this event · 1

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