GAA18CA234

NTSB accident investigation · Piper PA28 · Wickenburg, AZ · April 25, 2018

Accident · No injuriesData collectionFinal report
Date
April 24, 2018, 17:40 local (Apr 25, 2018, 00:40 UTC)
Place
Wickenburg, AZ
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Approach
Aircraft
N922PAPiper PA28
Defining event
Approach-VFR pattern final: Miscellaneous/other
Weather
Visual (VMC) · Day
Status
Completed · report August 27, 2018
Report
Approved by Office Director
NTSB office
General Aviation Accidents
Parties
FAA
FAA report
20180424024139A
Case key
97114

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 student pilot’s failure to relinquish flight controls and premature flap reduction during approach to land.

Findings · 5

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.

Flight control system: tE flap control systemAircraft › Aircraft systems · Incorrect use/operationPiper PA-28-181: 2 casesAll aircraft: 74 casesProbable cause
Action: incorrect action performancePersonnel issues › Action/decision · Student/instructed pilotPiper PA-28-181: 11 casesAll aircraft: 1,386 casesProbable cause
Action: lack of actionPersonnel issues › Action/decision · Student/instructed pilotPiper PA-28-181: 11 casesAll aircraft: 792 casesProbable cause
Knowledge: reading/language comprehensionPersonnel issues › Experience/knowledge · Student/instructed pilotPiper PA-28-181: 1 caseAll aircraft: 2 cases
Object/animal/substance: tree(s)Environmental issues › Physical environment · Contributed to outcomePiper PA-28-181: 7 casesAll aircraft: 933 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 flight instructor reported that, while abeam the intended touchdown point, he reduced power to idle for the student pilot to perform a simulated engine failure approach. The student pilot maneuvered for the runway and added full flaps (40°), decreasing airspeed to about 62 to 68 knots. The instructor asked the student if he believed he would be able to make the runway given his airspeed, and the student pilot retracted the flaps to 0° and then back to 25°. The airplane began to sink, the flight instructor added full flaps to "regain some lift," and he instructed the student pilot to recover. The student pilot put both hands on the yoke and pitched up. The flight instructor said "my controls," applied full power, and attempted to lower the nose, but the student pilot froze and continued to pitch up. The flight instructor repeated the exchange of flight controls command, the student pilot released control of the yoke and retracted the flaps to 0°. The flight instructor put the flaps back to 25° and pitched the nose down in an attempt to recover. The airplane struck the top of a tree, the flight instructor reduced power and landed short of the runway; the nose landing gear collapsed. The airplane sustained substantial damage to both wings and empennage. The flight instructor reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation. The Federal Aviation Administration inspector reported that, after conducting interviews, it was revealed that the flight instructor took control of the airplane "well below 500 feet from the ground." He also added that there may have been a communication barrier between the flight instructor and the student pilot. He reported that the student pilot paused for 20 to 30 seconds to comprehend each question before answering.

Factual narrative

The flight instructor reported that, while abeam the intended touchdown point, he reduced power to idle for the student pilot to perform a simulated engine failure approach. The student pilot maneuvered for the runway and added full flaps (40°), decreasing airspeed to about 62 to 68 knots. The instructor asked the student if he believed he would be able to make the runway given his airspeed, and the student pilot retracted the flaps to 0° and then back to 25°. The airplane began to sink, the flight instructor added full flaps to "regain some lift", and he instructed the student pilot to recover. The student pilot put both hands on the yoke and pitched up. The flight instructor said, "my controls", applied full power, and attempted to lower the nose, but the student pilot froze and continued to pitch up. The flight instructor repeated the exchange of flight controls command, the student pilot released control of the yoke and retracted the flaps to 0°. The flight instructor put the flaps back to 25° and pitched the nose down in an attempt to recover. The airplane struck the top of a tree, the flight instructor reduced power and landed short of the runway; the nose landing gear collapsed. The airplane sustained substantial damage to both wings and empennage. The flight instructor reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation. The Federal Aviation Administration inspector reported that, after conducting interviews, it was revealed that the flight instructor took control of the airplane "well below 500 feet from the ground". He also added that there may have been a communication barrier between the flight instructor and the student pilot. He reported that the student pilot paused for 20 to 30 seconds to comprehend each question before answering.

Aircraft

Registration
N922PA
Reported as
Piper PA28 (181)
Category
Airplane
Serial number
2843270
Built
1999
Airframe hours
19,121.6
Engine
Lycoming O-360-A4M, 180 horsepower, reciprocating
Damage
Substantial damage
Flight
Instructional · Part 91
Operator
Aeroguard Flight Training Center
Registered owner
Bird Acquisition LLC
Airworthiness certificate
Standard, Normal
Last inspection
AAIP · April 6, 2018
Departed
DVT · Phoenix, AZ
Destination
E25 · Wickenburg, AZ
Airport
E25 · Wickenburg Muni, runway 23, 6,101 × 75 ft, asphalt
Equipment
ADS-B, Electronic flight bag or handheld device, Stall warning system

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 · 2

As NTSB recorded them. NTSB leaves out names.

Role
Flight instructor
Age
31
Injuries
None
Certificates
Flight instructor, Commercial
Airplane ratings
Multi-engine land, Single-engine land
Instrument ratings
Airplane
Medical
Class 2, Without waivers/limitations
Last flight review
April 18, 2018
Seat
Right
Restraint
3-point
Flight hours
974 total · 712 in this make and model · 896 as pilot in command · 226 in the last 90 days · 85 in the last 30 days · 7 in the last 24 hours
Role
Student pilot
Age
21
Injuries
None
Certificate
Student
Medical
Class 3, With waivers/limitations
Seat
Left
Restraint
3-point
Flight hours
36 total · 36 in this make and model · 36 in the last 90 days · 7 in the last 30 days

Weather

Conditions
Visual (VMC) · Day
Wind
210° at 11 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
95 °F, dew point 21 °F
Altimeter
29.80 inHg
Observed at
KLUF, 33 nm away

Docket · 4

The files NTSB released with the investigation on June 25, 2018, on NTSB’s docket system: statements, records, photos and specialists’ reports. 1.4 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.