WPR11CA323

NTSB accident investigation · TL Ultralight Sro Stingsport · Soda Springs, ID · July 7, 2011

Accident · No injuriesData collectionFinal report
Date
July 7, 2011, 13:00 local (19:00 UTC)
Place
Soda Springs, ID
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N545NTL Ultralight Sro Stingsport
Defining event
Landing-flare/touchdown: Hard landing
Weather
Visual (VMC) · Day
Status
Completed · report October 6, 2011
Report
Approved by Office Director
NTSB office
Western Pacific Region
Parties
Federal Aviation Administration
FAA report
20110707015049A
Case key
81086

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 pilot's improper landing flare and failure to maintain directional control during the landing.

Findings · 4

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.

Action: incorrect action performancePersonnel issues › Action/decision · Student/instructed pilotTL Ultralight Sro STINGSPORT: 1 caseAll aircraft: 1,386 casesProbable cause
Performance/control parameters: landing flareAircraft › Aircraft oper/perf/capability · Incorrect use/operationTL Ultralight Sro STINGSPORT: 2 casesAll aircraft: 1,285 casesProbable cause
Performance/control parameters: directional controlAircraft › Aircraft oper/perf/capability · Not attained/maintainedTL Ultralight Sro STINGSPORT: 1 caseAll aircraft: 3,958 casesProbable cause
Use of equip/info: aircraft controlPersonnel issues › Task performance · Student/instructed pilotTL Ultralight Sro STINGSPORT: 5 casesAll aircraft: 9,295 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

During a cross country flight, the student pilot diverted to an unfamiliar airport due to deteriorating weather conditions. The pilot elected to touch down long because of the presence of a road near the approach end of the runway. The pilot reported that he flared too aggressively and the airplane bounced, and yawed to the right. The pilot applied left rudder to try and correct the airplane's yaw, and the nose gear collapsed when the airplane touched down the second time. Subsequently, the airplane slid off the runway to the right, and the elevator was substantially damaged. The pilot reported that there were no preimpact mechanical malfunctions or failures with the airframe and engine that would have precluded normal flight.

Factual narrative

During his cross country flight, the student pilot diverted to an unfamiliar airport due to deteriorating weather conditions. The pilot was attempting to land and elected to touch down long because of the presence of a road near the approach end of the runway. The pilot reported that he flared too aggressively and the airplane bounced after touching down and yawed to the right. The pilot applied left rudder to try and correct the airplanes yaw and the nose gear collapsed when the airplane touched down the second time. Subsequently the airplane slid off the runway to the right. A post accident inspection of the elevator showed that it had been substantially damaged. The pilot reported that there were no preimpact mechanical malfunctions or failures with the airframe and engine that would have precluded normal flight.

Aircraft

Registration
N545N
Reported as
TL Ultralight Sro Stingsport
Category
Airplane
Serial number
TLUSA123
Airframe hours
365
Engine
Bombardier ROTAX (ALL), 100 hp, reciprocating
Damage
Substantial damage
Flight
Instructional · Part 91
Operator
Airhaven Inc
Registered owner
Airhaven Inc
Airworthiness certificate
Special, Special light-sport (Special)
Last inspection
Annual · July 6, 2011 · 8 hours before
Departed
KGNG · Gooding, ID
Destination
KRKS · Rocksprings, WY
Airport
U78 · Allen H Tigert Airport, runway 16, 3,500 × 50 ft, asphalt

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
58
Injuries
None
Certificate
Student
Seat
Left
Flight hours
54 total · 11 in this make and model · 15 as pilot in command · 11 in the last 90 days · 11 in the last 30 days · 5 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
306° at 15 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
86 °F, dew point 55 °F
Altimeter
30.03 inHg
Observed at
KPIH, 43 nm away

Docket · 4

The files NTSB released with the investigation on July 22, 2011, on NTSB’s docket system: statements, records, photos and specialists’ reports. 1.7 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.