FTW84FA075

NTSB accident investigation · Gulfstream Peregrine · El Reno, OK · November 23, 1983

Accident · Serious injuriesField investigationFinal report
Date
November 23, 1983, 15:00 local (21:00 UTC)
Place
El Reno, OK
Injuries
1 serious
Damage
Destroyed
Phase of flight
Maneuvering
Aircraft
N600GAGulfstream Peregrine
Weather
Visual (VMC) · Day
Status
Completed
Report
Approved by Office Director
FAA report
19831123058569A
Case key
21088

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.

Loss of control - in flightManeuvering
Flt control syst,aileron control - inadequateCause
Remedial action - not possiblePilot in command
Acft/equip,inadequate airframeManufacturerCause
In flight collision with terrain/waterDescent - uncontrolled

Analysis

At about 215 KTS the plt rolled the acft in order to evaluate newly installed ailerons. It had been noted earlier that a dead-band existed in the aileron neutral range that increased with airspeed. The plt stated that upon rollout the dead-band was stronger & slowed the recovery which resulted in an additional roll. As the acft continued its roll, the nose-down attitude increased causing the acft to accelerate at an ever increasing rate. During the rollout of the second roll, the stick resistance caused the plt to push considerably harder, inadvertently pushing the stick through neutral to the opposite side. An immediate and rapid aileron roll reversal resulted & any action that the pilot took would not affect the rate of roll or descent. The plt ejected below 3000 ft MSL while in inverted flt.

Aircraft

Registration
N600GA
Reported as
Gulfstream Peregrine
Category
Airplane
Serial number
601
Airframe hours
242
Engine
P&W JT-15D-4, 2,500 lbs thrust, turbo fan
Damage
Destroyed
Flight
Part 91
Registered owner
Gulfstream Aerospace Corp.
Airworthiness certificate
Special, Experimental (Special)
Last inspection
100 hour · April 20, 1983 · 57 hours before
Departed
PWA · Oklahoma City, OK

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
55
Certificates
Flight instructor, Airline transport
Airplane ratings
Single-engine land, Multi-engine land
Instrument ratings
Airplane
Medical
Class 2, Valid Medical--w/ waivers/lim
Seat
Left
Flight hours
10,763 total · 129 in this make and model · 10,334 as pilot in command · 49 in the last 90 days · 1 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
320° at 12 knots
Visibility
15 statute miles
Lowest ceiling
2,000 ft broken
Altimeter
29.00 inHg

FAA reports on this event · 1

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