WPR14LA050

NTSB accident investigation · Piper PA 46 350P · Carefree, AZ · November 7, 2013

Accident · No injuriesLimited investigationFinal report
Date
November 7, 2013, 12:45 local (19:45 UTC)
Place
Carefree, AZ
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N60TMPiper PA 46 350P
Defining event
Landing-landing roll: Sys/Comp malf/fail (non-power)
Weather
Visual (VMC) · Day
Status
Completed · report September 29, 2014
Report
Approved by Office Director
NTSB office
Western Pacific Region
Parties
FAA FSDO
FAA report
20131107022949A
Case key
88425

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 left brake master cylinder seal, which rendered the left brake inoperative during landing.

Findings · 1

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: brakeAircraft › Aircraft systems · FailureAll aircraft: 297 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, during the landing, he applied the brakes and that the left pedal subsequently hit the floor. He attempted to control the airplane with the right brake and left rudder, but, as the airplane slowed, the rudder became ineffective. The airplane departed the right side of the runway, struck a berm, and the nose landing gear collapsed. Postaccident examination of the airplane's left brake revealed that the left brake master cylinder seal had failed, which rendered the left brake inoperative. A review of the airplane maintenance records revealed that the brake master cylinders had recently been rebuilt and had accumulated about 40 service hours before the failure.

Factual narrative

On November 7, 2013, about 1245 mountain standard time, a Piper PA 46-350P airplane, N60TM, sustained substantial damage when the nose gear collapsed during landing at Sky Ranch at Carefree (18AZ), Carefree, Arizona. The airplane was registered to Thermo Dynamics Inc., Laughlin, Nevada, and was operated by the pilot as an instrument flight rules (IFR), personal cross-country flight, under the provisions of 14 Code of Federal Regulations Part 91. The commercial pilot and sole passenger were not injured. Visual meteorological conditions prevailed at the destination/accident airport, and an instrument flight plan was filed and opened. The flight departed Eagle, Colorado about 1025. During a telephone conversation with the National Transportation Safety Board investigator-in-charge on November 18, the pilot stated that during the landing roll, he applied the brakes and the left pedal went to the floor. He attempted to control the airplane with the right brake and left rudder. As the airplane slowed, the rudder became ineffective and the airplane departed the right side of the runway. The airplane struck a berm and the nose landing gear collapsed. During the accident, the engine firewall sustained substantial damage. The pilot said there were no preaccident mechanical anomalies with the airplane. The airplane was three days out of an annual inspection, and the brake master cylinders had recently been rebuilt. During a subsequent examination of the airplane's left brake, overseen by a Federal Aviation Administration (FAA) air safety inspector, it was determined that the left brake master cylinder seal had failed, rendering the left brake inoperative. According to an airplane maintenance logbook entry, the master brake cylinder had been rebuilt about 40 service hours prior to the failure.

Aircraft

Registration
N60TM
Reported as
Piper PA 46 350P (350P)
Category
Airplane
Serial number
4622042
Built
1989
Airframe hours
4,196
Engine
Lycoming TIO-540 SER, 350 horsepower, unknown
Damage
Substantial damage
Flight
Personal · Part 91
Airworthiness certificate
Standard, Normal
Last inspection
Annual · October 30, 2013
Departed
EGE · Eagle, CO
Destination
18AZ · Carefree, AZ
Flight plan
IFR
Airport
18AZ · Sky Ranch At Carefree, runway 24, 4,037 × 50 ft, asphalt

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
50
Injuries
None
Certificate
Commercial
Airplane ratings
Multi-engine land, Single-engine land
Instrument ratings
Airplane
Medical
Class 2, With waivers/limitations
Last flight review
October 27, 2012
Seat
Left
Restraint
3-point
Flight hours
2,665 total · 949 in this make and model · 2,618 as pilot in command · 28 in the last 90 days · 11 in the last 30 days · 6 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
120° at 10 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
79 °F, dew point 10 °F
Altimeter
30.12 inHg
Observed at
KDVT, 25 nm away

Docket · 2

The files NTSB released with the investigation on April 3, 2014, on NTSB’s docket system: statements, records, photos and specialists’ reports. 1.3 MB 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.