NYC93LA011

NTSB accident investigation · Anderson Pitts S-1 · Minersville, PA · October 8, 1992

Accident · Serious injuriesLimited investigationFinal report
Date
October 8, 1992, 18:15 local (22:15 UTC)
Place
Minersville, PA
Injuries
1 serious
Damage
Destroyed
Phase of flight
Maneuvering
Aircraft
N31SPAnderson Pitts S-1
Weather
Visual (VMC) · Day
Status
Completed · report April 30, 1996
Report
Approved by Office Director
FAA report
19921008041379A
Case key
37254

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

A loss of control due to a foreign object jamming the elevator flight controls.

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 flightManeuvering
Aerobatics - performedPilot in command
Flt control syst,elevator control - foreign objectCause
Flt control syst,elevator control - jammedCause
Aircraft control - not possiblePilot in commandCause
Stall/spin - inadvertentPilot in command
In flight collision with terrain/waterDescent - uncontrolled

Analysis

The pilot was performing aerobatic maneuvers to provide an opinion of the airplane to the owner. FAA records indicate that the pilot was certified for aerobatic maneuvers to the surface. The pilot had over 300 hours of flight experience in the pitts. After several aerobatic maneuvers, the pilot was unable to counter a nose-up attitude and the airplane stalled and entered a spin. He was able to stop the spin rotation, but was unable to control the airplane pitch prior to impacting the ground. A c-clamp was found in the aft fuselage, near the elevator controls. The clamp was bent, gouged, and had marks where the paint had been removed. An elevator control rod was fractured.

Aircraft

Registration
N31SP
Reported as
Anderson Pitts S-1
Category
Airplane, amateur-built
Serial number
AL-2
Airframe hours
916
Engine
Lycoming O-360-A4A, 180 horsepower, reciprocating
Damage
Destroyed
Flight
Personal · Part 91
Operator
Bardic Aviation Inc
Registered owner
Bardic Aviation Inc
Last inspection
Continuous airworthiness · July 10, 1992 · 3 hours before
Departed
ZER · Pottsville, PA
Destination
ZER

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
47
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, Valid Medical--no waivers/lim.
Seat
Front
Flight hours
1,570 total · 350 in this make and model · 1,570 as pilot in command · 52 in the last 90 days · 9 in the last 30 days · 4 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Visibility
15 statute miles
Lowest ceiling
5,500 ft broken
Temperature
64 °F
Altimeter
30.00 inHg

FAA reports on this event · 1

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