LAX05CA280

NTSB accident investigation · Piper PA-28-236 · San Martin, CA · August 25, 2005

Accident · No injuriesData collectionFinal report
Date
August 25, 2005, 14:30 local (21:30 UTC)
Place
San Martin, CA
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N4366KPiper PA-28-236
Weather
Visual (VMC) · Day
Status
Completed · report January 31, 2006
Report
Approved by Office Director
Parties
Federal Aviation Administration
FAA report
20050825022539A
Case key
62372

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 failure to maintain directional control of the airplane during the landing roll. A factor in the accident was the spongy brakes.

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.

Airframe/component/system failure/malfunctionLanding - roll
Landing gear,normal brake system - low pressureFactor
Loss of control - on ground/waterLanding - roll
Directional control - not maintainedPilot in commandCause
Ground loop/swerve - not correctedPilot in command
On ground/water collision with objectLanding - roll
Object - tree(s)

Analysis

The airplane veered off the left side of the runway and struck trees during the landing rollout. The pilot said that the flight and landing were uneventful, but when he applied brake pressure, the right brake did not have any pressure. The pilot attempted to abort the landing roll, but ran out of runway. Near the end of the runway, the pilot again applied brake pressure and veered off the left side of the runway impacting trees. A Federal Aviation Administration inspector responded to the accident site along with a mechanic and they tested the brake system. According to the inspector, the brakes had equal pressure, but were both spongy and when depressed went to their stops. No leaks were noted in the brake system. According to the pilot, the last annual inspection took place in May 2005 and no anomalies with the airplane were noted since the annual.

Factual narrative

On August 25, 2005, at 1430 Pacific daylight time, a Piper PA-28-236, N4366K, was substantially damaged when it impacted trees after veering off runway 14 at the South County Airport, San Martin, California. The airplane was registered to and operated by the pilot under the auspices of 14 CFR Part 91 as a personal flight. The private pilot and his passenger were not injured. Visual meteorological conditions prevailed for the cross-country flight that originated from Palm Springs, California, at 1200.

During a telephone interview with the National Transportation Safety Board investigator, the pilot said the flight and landing on runway 14 (3,100 feet long and 75 feet wide) were uneventful. The airplane was rolling down the runway around 15-20 knots when he applied brakes to slow down. The airplane then veered to the left, exiting the runway surface, and impacting trees. The pilot believed the right brake failed.

According to the pilot's written statement, he attempted to stop the airplane during the landing roll out to exit on the first taxiway; however, when he applied the brakes he felt no brake pressure on the right side. As the airplane veered to the left, he applied right rudder pressure and power to abort the landing. The airplane proceeded down the runway; however, the pilot reduced the power to idle, as there was not a lot of remaining runway. The pilot again touched the brakes and the airplane veered left off the runway.

The nose landing gear was collapsed aft, the wing tip fairings were broken off, the left wing was pushed aft, and the engine firewall was crumpled. According to the Federal Aviation Administration inspector who responded to the accident site, he and a mechanic tested the brake system. According to the inspector the brakes had equal pressure, but were both spongy, and when depressed, went to their stops. No leaks were noted in the brake system. According to the pilot, the last annual inspection took place in May 2005, and no anomalies with the airplane were noted since the annual.

Aircraft

Registration
N4366K
Reported as
Piper PA-28-236
Category
Airplane
Serial number
28-8411025
Engine
Lycoming O-540, 235 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
John Giancola
Airworthiness certificate
Standard, Normal
Last inspection
Annual · May 1, 2005
Departed
UDD · Palm Springs, CA
Destination
E16 · San Martin, CA
Airport
E16 · South County Airport, runway 14, 3,100 × 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
49
Injuries
None
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, With waivers/limitations
Last flight review
November 1, 2004
Seat
Left
Flight hours
263 total · 223 in this make and model · 10 in the last 90 days · 5 in the last 30 days

Weather

Conditions
Visual (VMC) · Day
Wind
180° at 8 knots
Visibility
20 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.