WPR18LA037

NTSB accident investigation · Columbia Aircraft Mfg LC41 550FG · Oro Valley, AZ · November 27, 2017

Accident · No injuriesClass 3 · LimitedFinal report
Date
November 27, 2017, 11:30 local (18:30 UTC)
Place
Oro Valley, AZ
Injuries
3 uninjured
Damage
Substantial damage
Phase of flight
Taxi
Aircraft
N2526CColumbia Aircraft Mfg LC41 550FG
Defining event
Taxi-from runway: Loss of control on ground
Weather
Visual (VMC) · Day
Status
Completed
Report
Approved by Office Director
Investigation class
Class 3
NTSB office
Western Pacific Region
Parties
FAA
FAA report
20171127022449A
Case key
96385

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

The inadequate cooling time between repeated heavy braking applications, which resulted in the brakes overheating and a subsequent brake fire during the aborted takeoff sequence.

Findings · 2

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.

Aircraft capability: braking capabilityAircraft › Aircraft oper/perf/capability · Capability exceededColumbia Aircraft Mfg LC41-550FG: 1 caseAll aircraft: 57 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 the engine surged during an attempted takeoff, and she aborted the takeoff. She let the engine idle for about 5 minutes and then attempted another takeoff. However, the engine surged again. The pilot applied the brakes and aborted the second takeoff. As the pilot was trying to determine the problem and was planning to taxi back to the hangar, the airplane started rolling across the runway and the pilot lost braking capability. The airplane rolled across and off the runway into a ditch. The brakes caught fire which resulted in substantial damage to the right wing and fuselage. The pilot reported that the airplane was at its maximum gross weight at the time of the accident. The pilot operating handbook for the accident airplane stated that after heavy braking, especially when the airplane is near gross weight, the pilot should allow the brakes to cool for about 20 minutes before additional heavy braking, as the brakes may overheat. It is likely that due to insufficient time to allow the brakes to cool, during the second aborted takeoff sequence, the brakes overheated, which resulted in a brake fire and led to the pilot's loss of braking capability.

Factual narrative

On November 27, 2017, about 1130 mountain standard time, a Columbia LC41-550FG airplane, N2526C, was substantially damaged when it was involved in an accident near Oro Valley, Arizona. The pilot and the passenger were not injured. The airplane was operated as a 14 Code of Federal Regulations Part 91 personal flight. The pilot reported that, during an attempted takeoff at La Cholla Airpark (57AZ), Oro Valley, Arizona, the engine surged and she aborted the takeoff. She let the engine idle for about 5 minutes and then attempted another takeoff. However, the engine surged again. The pilot stated that she applied the brakes and aborted the second takeoff. As she was about to return to the hangar, she lost braking capability, the airplane rolled off the runway into a ditch, and she saw flames when she looked out. The fire substantially damaged the right wing and fuselage. The passenger stated that the brakes caught fire during taxi after the second aborted takeoff, and the brake lines burned through during the fire. The pilot reported that the airplane's weight at the time of the accident was 3,600 lbs, which is the airplane’s maximum gross weight. The Columbia 400 (LC41-550FG) Pilot's Operating Handbook and FAA [Federal Aviation Administration] Approved Airplane Flight Manual, Section 4, Normal Procedures, states that "After heavy braking, especially when the airplane is near gross weight, allow the brakes to cool for about 20 minutes before additional heavy braking. The brakes may overheat if there is repeated heavy braking without adequate cooling time."

Aircraft

Registration
N2526C
Reported as
Columbia Aircraft Mfg LC41 550FG (550FG)
Category
Airplane
Serial number
41569
Built
2006
Airframe hours
921.6
Engine
Cont Motor TSIO-550-C9, 310 horsepower, reciprocating
Damage
Substantial damage
Fire
On-Ground
Flight
Personal · Part 91
Airworthiness certificate
Standard, Normal
Last inspection
Annual · January 18, 2017
Departed
57AZ · Tuscon, AZ
Destination
KSBS · Steamboat Sprin, CO
Airport
57AZ · La Cholla Airpark, runway 19, 4,670 × 44 ft, asphalt
Equipment
Stall warning system, Auto-pilot, Electronic multifunction display, Onboard weather

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
70
Injuries
None
Certificate
Private
Airplane ratings
Single-engine sea, Single-engine land
Medical
Class 3, With waivers/limitations
Last flight review
January 7, 2017
Seat
Right
Restraint
3-point
Flight hours
408.6 total · 24.1 in this make and model · 2.7 in the last 90 days · 1.7 in the last 30 days · 0 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
Calm
Visibility
10 statute miles
Lowest ceiling
None
Observed at
KTUS, 16 nm away

Docket · 4

The files NTSB released with the investigation on December 31, 2020, on NTSB’s docket system: statements, records, photos and specialists’ reports. 1.1 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.