FTW99LA129

NTSB accident investigation · Piper J3C-65 · Claremore, OK · May 2, 1999

Accident · Serious injuriesLimited investigationFinal report
Date
May 1, 1999, 19:18 local (May 2, 1999, 00:18 UTC)
Place
Claremore, OK
Injuries
2 serious
Damage
Destroyed
Phase of flight
Approach
Aircraft
N3732CPiper J3C-65
Weather
Visual (VMC) · Dusk
Status
Completed · report June 21, 2000
Report
Approved by Office Director
FAA report
19990501020459A
Case key
46229

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 minimum airspeed for flight while maneuvering, which resulted in an inadvertent stall.

Sequence of events

NTSB’s coding before 2008: each occurrence and phase of flight, and the causes and factors under it. The codes are defined in NTSB’s coding manual.

Loss of control - in flightApproach - vfr pattern - base turn
Airspeed(vs) - not maintainedPilot in commandCause
Stall - inadvertentPilot in command
In flight collision with terrain/waterDescent - uncontrolled

Analysis

The pilot rated passenger (PRP) was flying the airplane from the rear seat, and was on final approach to land to the north at a grass strip. The PRP turned the airplane to the northeast when he observed an ultralight departing the grass strip to the south. At that point the commercial pilot in the front seat took control of the airplane and pitched the airplane's 'nose up to climb a little and reduce speed.' He was turning the airplane left from downwind to base when the airplane's 'nose pitched down sharply and impacted the ground.' The pilot reported that as the airplane turned, the 'engine died,' and he continued turning toward an open area. Examination of the wreckage revealed that one propeller blade 'exhibited evidence of power.' There were also deep gouges in the ground that 'appear to be propeller slashes.' Continuity was established to all flight controls. The PRP stated that 'he did not observe any problems with the aircraft or engine performance.'

Factual narrative

On May 1, 1999, about 1918 central daylight time, a Piper J3C-65 airplane, N3732C, registered to and operated by Sam Riggs Flying Service, Inc., of Claremore, Oklahoma, was destroyed by a fire following terrain impact while maneuvering in the traffic pattern at the Sam Riggs Airpark near Claremore. The commercial pilot and his pilot rated passenger were seriously injured. Visual meteorological conditions prevailed, and a flight plan was not filed for the 14 Code of Federal Regulations Part 91 personal flight. The local flight originated from the Sam Riggs Airpark at 1830.

The commercial pilot reported in the Pilot/Operator Aircraft Accident Report, NTSB Form 6120.1/2, that when the pilot rated passenger aligned the aircraft with runway 36 for landing, "an ultralight did a very aggressive landing procedure." The pilot further reported that he "took sole command of the aircraft," and flew to the east side of the runway for "a downwind leg" to land south. As the aircraft approached a road, which crosses the approach end of the runway, he "pitched the nose up to climb a little and reduce speed." He then "turned for a rounded base and final." As the aircraft turned, the "engine died," and he "continued to turn to get to open ground." He attempted an emergency landing, but the aircraft "hit too hard."

The pilot rated passenger reported to the FAA inspector that he was in the back seat and was landing the aircraft to the north on a grass strip. The aircraft was approximately 50 feet above a line of trees that run east and west when he "noticed an ultralight taking off to the south on the same runway." He then made a right turn to 040 degrees and leveled off. The passenger further reported that the pilot in the front seat "took over control of the aircraft and pitched the nose up and began a left turn to land to the south." He "noticed that the airspeed was low and then the aircraft began to stall." The pilot was able to get the wings level before the aircraft's "nose pitched down sharply and impacted the ground." The passenger stated that "he did not observe any problems with the aircraft or engine performance."

Examination of the aircraft wreckage by the FAA inspector revealed that the inboard section of both wings and the fuselage, except for the tail, were destroyed by fire. One propeller blade was destroyed by fire, and the other blade "exhibited evidence of power." There were also deep gouges in the ground that "appear to be propeller slashes." Continuity was established to all flight controls.

Aircraft

Registration
N3732C
Reported as
Piper J3C-65
Category
Airplane
Serial number
13603
Airframe hours
6,327
Engine
Continental M-A-65-8, 65 horsepower, reciprocating
Damage
Destroyed
Fire
On-Ground
Flight
Personal · Part 91
Registered owner
Sam Riggs Flying Service, Inc.
Airworthiness certificate
Standard, Normal
Last inspection
100 hour · April 19, 1999 · 105 hours before
Departed
K11
Airport
K11 · Sam Riggs Airpark, runway 36, 1,550 × 110 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

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
26
Certificate
Commercial
Airplane ratings
Single-engine land, Single-engine sea
Medical
Class 2, Valid Medical--no waivers/lim.
Seat
Front
Flight hours
443 total · 19 in this make and model · 365 as pilot in command · 38 in the last 90 days · 7 in the last 30 days · 1 in the last 24 hours

Weather

Conditions
Visual (VMC) · Dusk
Wind
270° at 4 knots
Visibility
15 statute miles
Lowest ceiling
None
Temperature
73 °F

FAA reports on this event · 1

The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.