CEN13LA193

NTSB accident investigation · Piper J3C-65 · Seguin, TX · March 13, 2013

Accident · Minor injuriesLimited investigationFinal report
Date
March 13, 2013, 13:40 local (18:40 UTC)
Place
Seguin, TX
Injuries
1 minor, 1 uninjured
Damage
Substantial damage
Phase of flight
Takeoff
Aircraft
N88313Piper J3C-65
Defining event
Takeoff: Loss of engine power (partial)
Weather
Visual (VMC) · Day
Status
Completed · report March 24, 2014
Report
Approved by Office Director
NTSB office
Central Region
Parties
FAA FSDO
FAA report
20130313004679A
Case key
86429

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 partial loss of engine power for reasons that could not be undetermined because an examination of the engine did not reveal any malfunctions or failures that would preclude normal operation.

Findings · 1

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.

Not determinedNot determined › Not determined · Unknown/Not determinedPiper J3C-65: 7 casesAll aircraft: 2,247 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 flight instructor and student pilot planned on departing from a private grass airfield and fly to another airfield, in order to refuel the airplane before practicing landings. The instructor reported that the airplane had 3 gallons of fuel onboard. Shortly after takeoff, when the airplane was about 200 feet in the air, the flight instructor realized engine power was decreasing. The instructor reported that the throttle was already at full power and with obstacles ahead, he elected to turn back to the departure runway. The instructor made a 150-degree turn, but was unable to recover from the turn, and the left wing impacted terrain. The instructor added that the engine may have had carburetor icing, though he did not apply carburetor heat. An automated weather station located about 13 miles west of the accident site, reported, temperature 72 degrees F, and a dew point of 36 degrees F. A review of the carburetor icing probability chart, indicated that the airplane was operating in an area that was associated with a risk of carburetor ice formation, at glide and cruise power. A visual examination of the airplane revealed that the carburetor and gascolator were broken off during the impact, and the fuel tank was empty. No malfunctions or failures were noted that would have precluded normal operation. A reason for the loss of power was not determined.

Factual narrative

On March 13, 2013, about 1340 central daylight time, a Piper J3C-65 airplane, N88313, experienced a loss of engine power shortly after takeoff. The flight instructor and student pilot received minor injuries. The airplane was substantially damaged. The airplane was registered to and operated by the Freeman Heritage Collection, LLC, Kingsbury, Texas, under the provisions of 14 Code of Federal Regulations Part 91 as an instructional flight. Visual meteorological conditions prevailed for the flight that operated without a flight plan. The flight was originating from the Old Kingsbury Aerodrome (85TE), Seguin, Texas at the time of the accident. According to the flight instructor, they planned on flying to a nearby airport to get fuel, and then return to 85TE for some practice landings. However, shortly after takeoff, as the airplane reached about 200 feet, the instructor noticed that engine power was decreasing. He attempted to advance the throttle, but it was already at full forward. The area ahead was not suitable for a forced landing, so he elected to return to the airfield. The instructor made about a 150-degree turn, but was not able to recover from the turn and the left wing impacted terrain. The instructor reported that they hit the ground hard. The instructor added that engine may have had carburetor icing and that he did not apply carburetor heat. According to the responding Federal Aviation Administration (FAA) inspector, the flight instructor reported that they departed the airfield, with three gallons of gas in the airplane. Examination of the airplane by FAA revealed that the airplane's wings and fuselage were bent and the main landing gear had flattened out. The gascolator and carburetor were broken, and no fuel was found in the airplane's fuel tank. At 1351, the automated weather station at New Braunfels Regional Airport, (KBAZ), located about 13 miles west of the accident site, reported, temperature 72 degrees F, and a dew point of 36 degrees F. The carburetor icing probability chart included in Federal Aviation Administration Special Airworthiness Information Bulletin No. CE-09-35, Carburetor Icing Prevention, indicated that the airplane was operating in an area that was associated with a risk of carburetor ice formation, at glide and cruise power settings.

Aircraft

Registration
N88313
Reported as
Piper J3C-65
Category
Airplane
Serial number
15931
Engine
Continential A65, reciprocating
Damage
Substantial damage
Flight
Instructional · Part 91
Operator
Freeman Heritage Collection LLC
Registered owner
Freeman Heritage Collection LLC
Airworthiness certificate
Standard, Normal
Departed
85TE · Seguin, TX
Destination
85TE · Seguin, TX
Flight plan
Unknown
Airport
85TE · Old Kingsbury, runway 14, 2,600 × 150 ft, grass/turf

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
70
Injuries
Minor
Certificates
Commercial, Flight instructor
Airplane ratings
Multi-engine land, Single-engine land
Instrument ratings
Airplane
Medical
Class 2, With waivers/limitations
Seat
Front
Restraint
Lap only
Flight hours
14,660 total · 1,387 in this make and model · 56 in the last 90 days · 18.2 in the last 30 days
Role
Student pilot
Injuries
Minor
Seat
Rear
Restraint
Lap only
Flight hours
27.2 total · 27.2 in this make and model · 1 as pilot in command

Weather

Conditions
Visual (VMC) · Day
Wind
Calm
Visibility
10 statute miles
Lowest ceiling
None
Temperature
72 °F, dew point 36 °F
Altimeter
30.37 inHg
Observed at
KBAZ, 15 nm away

Docket · 4

The files NTSB released with the investigation on February 3, 2014, on NTSB’s docket system: statements, records, photos and specialists’ reports. 1.0 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.