CEN13LA379

NTSB accident investigation · Piper PA-25-235 · Salisbury, MO · June 28, 2013

Accident · No injuriesLimited investigationFinal report
Date
June 28, 2013, 14:00 local (19:00 UTC)
Place
Salisbury, MO
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N4812YPiper PA-25-235
Defining event
Landing-landing roll: Loss of control on ground
Weather
Visual (VMC) · Day
Status
Completed · report February 10, 2014
Report
Approved by Office Director
NTSB office
Central Region
Parties
FAA/FSDO
Case key
87337

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 airplane's reduced braking efficiency and the pilot's subsequent delayed decision to go around, which resulted in a loss of directional control.

Findings · 5

NTSB’s coded findings. Those marked are part of the probable cause; the rest are factors or other findings. Under each, the cases with the same finding.

Use of equip/info: aircraft controlPersonnel issues › Task performance · PilotPiper PA-25-235: 18 casesAll aircraft: 9,295 casesProbable cause
Action: delayed actionPersonnel issues › Action/decision · PilotPiper PA-25-235: 4 casesAll aircraft: 894 casesProbable cause
Landing gear system: brakeAircraft › Aircraft systems · Not specifiedPiper PA-25-235: 3 casesAll aircraft: 297 casesProbable cause
Wind: crosswindEnvironmental issues › Conditions/weather/phenomena · Ability to respond/compensatePiper PA-25-235: 1 caseAll aircraft: 1,008 casesProbable cause

Sequence of events

The events NTSB coded, in order, by phase of flight. The defining event is the one that best describes the accident. Under each, the cases with the same event anywhere in their sequence.

Analysis

The pilot landed the tailwheel-equipped airplane with a left crosswind on a dirt road. As the airplane slowed down, he applied the right rudder and brake. The pilot said the right brake was soft, and he tried to pump it several times before he decided to go around. After applying power, the pilot was unable to maintain directional control, and the airplane veered off of the road and into a ditch. A postaccident examination of the airplane revealed that, when the right rudder pedal was in the neutral position and the brake was applied, it held pressure. However, when full right rudder and brake were applied, the brake contacted the hopper, which limited the brake's full travel. It could not be determined if the amount of pressure applied to the brake in this condition was enough to provide adequate braking power. However, even with the limitations of the brake with the rudder pedal fully extended, the pilot had made several uneventful landings before the accident and reported no problems with the brakes. He said that the accident could have been prevented if he had decided to go around sooner.

Factual narrative

On June 28, 2013, at 1400 central daylight time, N4812Y, a Piper PA25-235, sustained substantial damage when it lost control while attempting to land on a dirt road near Salisbury, Missouri. The commercial pilot was not injured. The airplane was registered to and operated by the pilot. Visual meteorological conditions prevailed and no flight plan was filed for the local aerial application flight conducted under 14 Code of Federal Regulations Part 137. The pilot said he landed the tail wheel-equipped airplane on a dirt road with a left crosswind. As the airplane slowed down, he applied right rudder and brake. The pilot said the right brake was soft and he tried to pump it several times before he elected to go around. He also said the rudder pedal was hitting up against the hopper. The pilot was unable to maintain directional control and the airplane veered off of the road and into a ditch, which resulted in substantial damage to the airframe. Examination of the airplane revealed that when the right rudder pedal was in the neutral position and the brake was applied, it held pressure. However, when full right rudder pedal was applied and the brake was pressed, it came in contact with the hopper and limited full travel of the brake. It was not determined if this partial extension of the brake would have had sufficient braking action to slow the airplane. It was also unlear as to why the pedal was hitting the hopper. However, even with the limitations of the brake with the rudder pedal fully extended, the pilot said that he had made several uneventful landings prior to the accident and reported no problems with the brakes. He said the accident could have been prevented if he decided to go around sooner.

Aircraft

Registration
N4812Y
Reported as
Piper PA-25-235
Category
Airplane
Serial number
25-4594
Airframe hours
7,105
Engine
Lycoming 0-540 SERIES, 250 horsepower, reciprocating
Damage
Substantial damage
Flight
Aerial application · Part 137
Operator
Slaughter Bradley R
Registered owner
Slaughter Bradley R
Airworthiness certificate
Special, Restricted (Special)
Last inspection
Annual · April 8, 2013
Departed
Salisbury, MO
Destination
Salisbury, MO

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
47
Injuries
None
Certificate
Commercial
Airplane ratings
Multi-engine land, Single-engine land
Instrument ratings
Airplane
Medical
Class 2, With waivers/limitations
Last flight review
March 11, 2013
Seat
Center
Flight hours
3,000 total · 900 in this make and model · 2,800 as pilot in command · 120 in the last 90 days · 50 in the last 30 days · 8 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
190° at 10 knots, gusting 18
Temperature
90 °F, dew point 70 °F
Altimeter
29.81 inHg
Observed at
VER, 14 nm away

Docket · 2

The files NTSB released with the investigation on December 4, 2013, on NTSB’s docket system: statements, records, photos and specialists’ reports. 1.8 MB in all.

Other investigations on N4812Y · 1

Matched to the same aircraft by N-number and date.