GAA18CA061

NTSB accident investigation · Luscombe 8 · Caldwell, TX · November 23, 2017

Accident · Minor injuriesData collectionFinal report
Date
November 23, 2017, 16:50 local (22:50 UTC)
Place
Caldwell, TX
Injuries
2 minor
Damage
Substantial damage
Phase of flight
Approach
Aircraft
N1780KLuscombe 8
Defining event
Approach-VFR pattern base: Aerodynamic stall/spin
Weather
Visual (VMC) · Dusk
Status
Completed · report February 21, 2018
Report
Approved by Office Director
NTSB office
General Aviation Accidents
Parties
FAA
FAA report
20171123021929A
Case key
96389

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 failure to maintain yaw control and the exceedance of the airplane’s critical angle of attack in the traffic pattern, which resulted in an aerodynamic stall/spin.

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.

Performance/control parameters: yaw controlAircraft › Aircraft oper/perf/capability · Not attained/maintainedLuscombe 8F: 1 caseAll aircraft: 149 casesProbable cause
Performance/control parameters: angle of attackAircraft › Aircraft oper/perf/capability · Capability exceededLuscombe 8F: 1 caseAll aircraft: 990 casesProbable cause
Use of equip/info: aircraft controlPersonnel issues › Task performance · PilotLuscombe 8F: 6 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

The pilot reported that, during the right downwind in the traffic pattern, he was about 1/4 mile from the runway, which was "too close." He added that, "during a poorly planned and executed base to final approach," he performed an "uncoordinated" right bank about 45°, and the right wing dropped, which resulted in a descending right roll. He attempted to recover, but the airplane impacted terrain. The airplane sustained substantial damage to the fuselage and right wing. The pilot reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation.

Factual narrative

The pilot reported that, during the right downwind in the traffic pattern, he was about one quarter mile from the runway, which was "too close". He added that, "during a poorly planned and executed base to final approach", he performed an "uncoordinated" right bank at about 45°, and the right wing dropped, which resulted in a descending roll to the right. He attempted to recover, but the airplane impacted terrain. The airplane sustained substantial damage to the fuselage and the right wing. The pilot reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation.

Aircraft

Registration
N1780K
Reported as
Luscombe 8 (F)
Category
Airplane
Serial number
4507
Built
1946
Engine
Continental C90-12F, 90 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Airworthiness certificate
Standard, Normal
Last inspection
Annual · September 1, 2017
Departed
PVT · Caldwell, TX
Destination
PVT · Caldwell, TX
Airport
PVT · Private, runway 36, 2,700 × 50 ft, asphalt
Equipment
None

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
53
Injuries
Minor
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, With waivers/limitations
Last flight review
January 4, 2016
Seat
Left
Restraint
3-point
Flight hours
589 total · 589 in this make and model · 589 as pilot in command · 6 in the last 90 days · 4.5 in the last 30 days · 0.5 in the last 24 hours

Weather

Conditions
Visual (VMC) · Dusk
Wind
Calm
Visibility
10 statute miles
Lowest ceiling
None
Temperature
55 °F, dew point 36 °F
Altimeter
30.09 inHg
Observed at
KRWV, 1 nm away

Docket · 2

The files NTSB released with the investigation on December 22, 2017, on NTSB’s docket system: statements, records, photos and specialists’ reports. 2.0 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.