WPR14CA228

NTSB accident investigation · Piper PA 18A 150 · Leeds, UT · June 4, 2014

Accident · No injuriesData collectionFinal report
Date
June 4, 2014, 12:00 local (18:00 UTC)
Place
Leeds, UT
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Takeoff
Aircraft
N1672PPiper PA 18A 150
Defining event
Takeoff: Miscellaneous/other
Weather
Visual (VMC) · Day
Status
Completed · report September 24, 2014
Report
Approved by Office Director
NTSB office
Western Pacific Region
Parties
Federal Aviation Administration FSDO
FAA report
20140604010169A
Case key
89366

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The pilot's failure to confirm the flaps had been retracted during takeoff, which resulted in a loss of lift and subsequent collision with terrain.

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.

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 had been familiarizing himself with the operation of the tailwheel-equipped airplane in preparation for utilizing it to provide flight training. During the 2-week period leading up to the accident he had practiced multiple takeoffs, landings, and touch-and-go landings, many of which were performed at the accident airstrip. The pilot reported that he had requested that a volunteer sit in the front seat, so he could familiarize himself with flying from the rear seat. After an uneventful flight, they performed a touch-and-go landing on the dirt airstrip, however, during climb-out the airplane began to rapidly sink. The pilot reported that he asked the passenger to retract the flaps, because the control was positioned next to the front seat. The pilot applied forward elevator control attempting to gain airspeed, but the airplane continued to sink. He elected to perform an off-airport landing on a dirt road just beyond the runway; however, during the landing roll the right wing struck a ditch and sustained substantial damage. Postaccident examination of the airplane revealed that the passenger had not retracted the flaps as the pilot had instructed and they were in the fully extended position. The pilot reported that there were no preimpact mechanical malfunctions or failures with the airframe or engine that would have precluded normal operation.

Factual narrative

The pilot had been familiarizing himself with the operation of the tailwheel-equipped airplane in preparation for utilizing it to provide flight training. During the 2-week period leading up to the accident he had practiced multiple takeoffs, landings, and touch-and-go landings, many of which were performed at the accident airstrip. The pilot reported that he had requested that a volunteer sit in the front seat, so he could familiarize himself with flying from the rear seat. After an uneventful flight, they performed a touch-and-go landing on the dirt airstrip, however, during climb-out the airplane began to rapidly sink. The pilot reported that he asked the passenger to retract the flaps, because the control was positioned next to the front seat. The pilot applied forward elevator control attempting to gain airspeed, but the airplane continued to sink. He elected to perform an off-airport landing on a dirt road just beyond the runway; however, during the landing roll the right wing struck a ditch and sustained substantial damage. Postaccident examination of the airplane revealed that the passenger had not retracted the flaps as the pilot had instructed, and they were in the fully extended position. The pilot reported that there were no preimpact mechanical malfunctions or failures with the airframe or engine that would have precluded normal operation.

Aircraft

Registration
N1672P
Reported as
Piper PA 18A 150
Category
Airplane
Serial number
18-3801
Built
1954
Airframe hours
3,884
Engine
Lycoming O-320 SERIES, 150 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Airworthiness certificate
Standard, Normal
Last inspection
Annual · March 3, 2014 · 9 hours before
Departed
1L8 · Hurricane, UT
Destination
NA · Leeds, UT
Airport
NA · Private, runway 36, 1,000 × 50 ft, gravel

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
31
Injuries
None
Certificates
Airline transport, Flight instructor, Commercial
Airplane ratings
Single-engine land, Multi-engine land
Instrument ratings
Airplane
Medical
Class 2, Without waivers/limitations
Last flight review
March 20, 2014
Seat
Rear
Restraint
4-point
Flight hours
7,032 total · 111 in this make and model · 5,695 as pilot in command · 31 in the last 90 days · 20 in the last 30 days · 2 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
270° at 4 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
84 °F, dew point 23 °F
Altimeter
29.88 inHg
Observed at
KSGU, 14 nm away

Docket · 5

The files NTSB released with the investigation on September 9, 2014, 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.