CEN12CA567

NTSB accident investigation · Fantasy Air Allegro 2000 · Bear Creek, WI · August 17, 2012

Accident · No injuriesData collectionFinal report
Date
August 17, 2012, 17:45 local (22:45 UTC)
Place
Bear Creek, WI
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N5064EFantasy Air Allegro 2000
Defining event
Landing-landing roll: Sys/Comp malf/fail (non-power)
Weather
Visual (VMC) · Day
Status
Completed · report November 26, 2012
Report
Approved by Office Director
NTSB office
Central Region
Parties
FAA-MKE-FSDO
FAA report
20120817018109A
Case key
84769

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

A malfunction of the right brake for reasons that could not be determined because of the perishable evidence, which resulted in the pilot’s inability to maintain directional control of the airplane during landing.

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.

Landing gear system: brakeAircraft › Aircraft systems · MalfunctionFantasy Air Sro ALLEGRO 2000: 1 caseAll aircraft: 297 casesProbable cause
Performance/control parameters: directional controlAircraft › Aircraft oper/perf/capability · Attain/maintain not possibleFantasy Air Sro ALLEGRO 2000: 3 casesAll aircraft: 3,958 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 airplane veered sharply to the left when he applied the brakes during the landing roll on a grass airstrip. He applied right rudder to no avail, and the airplane continued to the left where the left wing contacted a corn crop. The airplane was pulled into the corn, where it came to rest with substantial damage to both wings and the aft fuselage. The pilot reported that the airplane’s brakes operated normally prior to takeoff. The brake system consists of main landing gear hydraulic disc brakes that are operated via a mechanical brake lever located on the control stick. The airplane has a steerable nosewheel, but no differential braking. A postaccident examination of the airplane revealed that both brakes functioned when the brake lever was operated; however, the left brake responded more quickly than the right brake. The presence of air in the hydraulic lines to the right brake may have affected the brake's responsiveness, but the examination was not able to establish that the lines contained air.

Factual narrative

The pilot reported that the airplane veered sharply to the left when he applied the brakes during the landing roll on a grass airstrip. He applied right rudder to no avail and the airplane continued to the left where the left wing contacted a corn crop. The airplane was pulled into the corn where it came to rest with substantial damage to both wings and the aft fuselage. The pilot reported the airplane’s brakes operated normally prior to takeoff. The brake system consists of main landing gear hydraulic disc brakes which are operated via a mechanical brake lever located on the control stick. The airplane has a steerable nosewheel, but no differential braking. A postaccident inspection of the airplane revealed that hydraulic fluid was present in the brake system. Both brakes functioned when the brake lever was operated, however; the left brake responded quicker than the right brake.

Aircraft

Registration
N5064E
Reported as
Fantasy Air Allegro 2000
Category
Airplane
Serial number
05-720
Airframe hours
723
Engine
Rotax 912, 80 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Operator
Peter Anderson
Registered owner
Plane Guys Aviation LLC
Airworthiness certificate
Special, Experimental light sport (Special)
Last inspection
Annual · September 7, 2011 · 38 hours before
Departed
LPCZ · Waupaca, WI
Destination
PVT · Bear Creek, WI
Airport
PVT · Private Airstrip, runway 36, 1,742 × 75 ft, grass/turf

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
60
Injuries
None
Certificate
Private
Airplane ratings
Single-engine land
Medical
Sport pilot
Last flight review
August 8, 2012
Seat
Left
Flight hours
291 total · 109 in this make and model

Weather

Conditions
Visual (VMC) · Day
Wind
320° at 6 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
72 °F, dew point 39 °F
Altimeter
29.98 inHg
Observed at
KATW, 21 nm away

Docket · 3

The files NTSB released with the investigation on September 14, 2012, on NTSB’s docket system: statements, records, photos and specialists’ reports. 4.8 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.