WPR10LA241

NTSB accident investigation · Cessna 180 · Caldwell, ID · May 14, 2010

Accident · Minor injuriesLimited investigationFinal report
Date
May 14, 2010, 17:30 local (23:30 UTC)
Place
Caldwell, ID
Injuries
1 minor, 1 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N3142CCessna 180
Defining event
Landing-landing roll: Loss of control on ground
Weather
Visual (VMC) · Day
Status
Completed · report October 6, 2011
Report
Approved by Office Director
NTSB office
Western Pacific Region
Parties
Federal Aviation Administration FSDO
FAA report
20100514034359A
Case key
76013

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

A loss of directional control and runway excursion for undetermined reasons.

Findings · 3

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.

Landing gear system: landing gear brakes systemAircraft › Aircraft systems · Not specifiedCessna 180: 3 casesAll aircraft: 92 casesProbable cause
Not determinedNot determined › Not determined · Unknown/Not determinedCessna 180: 4 casesAll aircraft: 2,247 casesProbable cause
Terrain: rough terrainEnvironmental issues › Physical environment · Effect on equipmentCessna 180: 7 casesAll aircraft: 442 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 reported that he landed with a direct left crosswind and noted a steady half windsock deflection. The airplane bounced once before settling onto the runway. During the landing roll, he retracted the flaps to one notch and deflected the ailerons into the wind. Light right rudder deflection and right braking was required for the existing conditions. The pilot stated that as the landing roll progressed, the right brake failed to activate, and the airplane veered toward the side of the runway. The pilot did not want to risk aborting the landing and the airplane subsequently departed the left side of the runway surface into brush and rough terrain. The right main landing gear collapsed after bouncing across one ditch, and the right wing sustained substantial damage after the airplane bounced across a second ditch. The pilot stated that during his preflight inspection there were no signs of brake fluid leakage on the brake assembly or on the hangar floor, and that the right brake functioned normally during taxi and departure. Immediately after the accident, the pilot noted that although the wreckage was on top of the right main landing gear, the right tire was inflated, and the brake caliper was coated in brake fluid. Due to the damage, it could not be determined if a brake anomaly existed prior to the accident.

Factual narrative

On May 14, 2010, about 1730 Pacific daylight time, a Cessna 180, N3142C, experienced a right main landing gear collapse during a runway excursion at Oregon's Owyhee Reservoir State Airport near Caldwell, Idaho. The owner/pilot was operating the airplane under the provisions of 14 Code of Federal Regulations (CFR) Part 91. The private pilot was not injured, and one passenger sustained minor injuries. The airplane sustained substantial damage to the right wing from impact forces. The cross-country personal flight departed Caldwell about 1700, with a planned destination of Owyhee. Visual meteorological conditions prevailed, and no flight plan had been filed. The pilot reported that he landed on runway 13 with a direct left crosswind with a steady half windsock deflection. The airplane bounced once before settling onto the runway. He then went from two notches of flaps to one notch. During the landing roll, he had the ailerons deflected into the wind. He stated that the landing conditions required light right rudder and light right braking. The pilot reported that he had little or no response to the initial right brake application. He applied more pressure, and the brake pedal went all the way down to the cabin floor with no braking action. He pumped the brake several times, but they did not activate. The airplane veered toward the side of the runway. The pilot stated that the airplane was fully loaded, and he did not want to risk aborting the landing at this point and possibly going into the lake, which was along the runway's left side. He had been to this airport many times, and indicated that he was past his preplanned go/no-go abort point for the conditions encountered. The airplane departed the left side of the runway surface into brush and rough terrain. The airplane collided with one ditch that was parallel to the runway, and bounced; the right main landing gear collapsed on ground contact. The airplane bounced across a second ditch, and came down on the right wing. The airplane slid another 30 feet before coming to a stop. The pilot stated that there were no signs of brake fluid leakage during his preflight inspection on the brake assembly or on the hangar floor. The right brake functioned normally during taxi and departure. He noted that although the wreckage was on top of the right main landing gear, the right tire was inflated, and the brake caliper was coated in brake fluid immediately after he exited the airplane. Due to the damage, investigators were unable to determine if a brake anomaly existed prior to the accident, and if so, why the malfunction occurred.

Aircraft

Registration
N3142C
Reported as
Cessna 180
Category
Airplane
Serial number
30941
Airframe hours
4,453
Engine
Teledyne Continental Motors O-470, 265 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Operator
ITM Electronics, Inc
Registered owner
ITM Electronics, Inc
Last inspection
Annual · April 23, 2010
Departed
28U · Caldwell, ID
Destination
EUL · Caldwell, ID
Airport
28U · Owyhee Reservoir State, runway 13, 1,840 × 30 ft, gravel

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
52
Injuries
None
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, Without waivers/limitations
Last flight review
May 3, 2009
Seat
Left
Flight hours
415 total · 310 in this make and model · 415 as pilot in command · 9 in the last 90 days · 4 in the last 30 days · 1 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
30° at 4 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
73 °F, dew point 34 °F
Altimeter
30.04 inHg
Observed at
KEUL, 35 nm away

Docket · 1

The files NTSB released with the investigation on August 31, 2011, on NTSB’s docket system: statements, records, photos and specialists’ reports. 700 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.