FTW87DRA01

NTSB accident investigation · Strissel Pitts S1S · Friendswood, TX · March 2, 1987

Accident · Minor injuriesFinal report
Date
March 2, 1987, 16:50 local (22:50 UTC)
Place
Friendswood, TX
Injuries
1 minor
Damage
Substantial damage
Phase of flight
Enroute
Aircraft
N815DBStrissel Pitts S1S
Weather
Visual (VMC) · Day
Status
Completed · report May 16, 1989
Report
Approved by Office Director
FAA report
19870302003889A
Case key
22186

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

On this page

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.

Airframe/component/system failure/malfunctionCruise - normal
Propeller system/accessories - separationCause
Engine assembly,crankshaft - failure,totalCause
Engine assembly,crankshaft - fatigueCause
Maintenance,major repair - inadequateUnqualified personCause
Forced landingDescent - emergency
On ground/water encounter with terrain/waterLanding - flare/touchdown
Terrain condition - rough/uneven

Analysis

The prop separated during flt and the plt was forced to land the acft on rough terrain. Investigation revealed that the prop had separated as a result of a previously existing crack in the eng crankshaft. The eng had been rebuilt from components salvaged from an eng involved in a previous wreck and installed by a non-certificated mechanic.

Aircraft

Registration
N815DB
Reported as
Strissel Pitts S1S
Category
Airplane, amateur-built
Serial number
70422
Airframe hours
352
Engine
Lycoming O-360-A4M, 180 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Operator
John S. Shackelford
Registered owner
John S Shockelford, Jr.
Airworthiness certificate
Special, Experimental (Special)
Last inspection
Annual · August 19, 1986
Departed
T02 · Friendswood, TX

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
31
Certificates
Airline transport, Commercial
Airplane ratings
Multi-engine land, Single-engine land
Instrument ratings
Airplane
Medical
Class 1, Valid Medical--no waivers/lim.
Seat
Front
Flight hours
6,439 total · 37 in this make and model · 3,458 as pilot in command · 35 in the last 90 days · 35 in the last 30 days · 4 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
150° at 6 knots
Visibility
15 statute miles
Lowest ceiling
None
Temperature
66 °F, dew point 43 °F
Altimeter
30.00 inHg
Observed at
HOU, 5 nm away

FAA reports on this event · 1

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