GAA17CA352

NTSB accident investigation · Piper PA 18 · Red Bluff, CA · June 18, 2017

Accident · No injuriesData collectionFinal report
Date
June 18, 2017, 08:30 local (15:30 UTC)
Place
Red Bluff, CA
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N4420ZPiper PA 18
Defining event
Landing: Loss of control on ground
Weather
Visual (VMC) · Day
Status
Completed · report January 23, 2018
Report
Approved by Office Director
NTSB office
General Aviation Accidents
Parties
FAA
FAA report
20170618008529A
Case key
95407

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 pilot’s failure to maintain pitch control during the landing roll in gusting wind conditions, which resulted in a nose-over.

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: pitch controlAircraft › Aircraft oper/perf/capability · Not attained/maintainedPiper PA-18-150: 3 casesAll aircraft: 526 casesProbable cause
Use of equip/info: aircraft controlPersonnel issues › Task performance · PilotPiper PA-18-150: 160 casesAll aircraft: 9,295 casesProbable cause
Wind: gustsEnvironmental issues › Conditions/weather/phenomena · Effect on operationPiper PA-18-150: 34 casesAll aircraft: 1,199 cases

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 of the tailwheel-equipped airplane reported that, during the landing roll on a gravel bar in gusting wind, the "tail seemed to pick up from the wind." Subsequently, the airplane nosed over. The airplane sustained substantial damage to the empennage. The pilot reported that there were no preaccident mechanical malfunctions or failures with the airplane that would have precluded normal operation. The automated weather observation station located about 6 nautical miles west of the accident site reported that, about 36 minutes before the accident, the wind was from 340° at 14 knots, gusting to 22 knots. The same weather observation station reported that, about 24 minutes after the accident, the wind was from 360° at 19 knots, gusting to 26 knots. The airplane was landing to the north.

Factual narrative

The pilot of the tailwheel-equipped airplane reported that, during the landing roll on a gravel bar in gusting wind, the "tail seemed to pickup from the wind". Subsequently the airplane nosed over. The airplane sustained substantial damage to the empennage. The pilot reported that there were no preaccident mechanical malfunctions or failures with the airplane that would have precluded normal operation. The automated weather observation station located about 6 nautical miles west from the accident site reported that, about 36 minutes before the accident, the wind was from 340° at 14 knots, gusting 22 knots. The same weather observation station reported that, about 24 minutes after the accident, the wind was from 360° at 19 knots, gusting 26 knots. The airplane was landing to the north.

Aircraft

Registration
N4420Z
Reported as
Piper PA 18 (150)
Category
Airplane
Serial number
18-8756
Built
1968
Airframe hours
2,058
Engine
Lycoming O-320-A2B, 160 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Airworthiness certificate
Standard, Normal
Last inspection
Annual · June 15, 2017
Departed
RBL · Red Bluff, CA
Destination
Red Bluff, CA
Flight plan
VFR
Equipment
Unknown

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
46
Injuries
None
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, Without waivers/limitations
Last flight review
June 14, 2016
Flight hours
1,546 total · 490 in this make and model · 1,389.6 as pilot in command · 24.5 in the last 90 days · 7.5 in the last 30 days

Weather

Conditions
Visual (VMC) · Day
Wind
350° at 14 knots, gusting 22
Visibility
10 statute miles
Lowest ceiling
None
Temperature
88 °F, dew point 54 °F
Altimeter
29.85 inHg
Observed at
KRBL, 6 nm away

Docket · 2

The files NTSB released with the investigation on December 14, 2017, on NTSB’s docket system: statements, records, photos and specialists’ reports. 959 KB 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.

Other investigations on N4420Z · 1

Matched to the same aircraft by N-number and date.