ATL02LA028

NTSB accident investigation · Pioneer 85 · Lajas, PR · December 29, 2001

Accident · Minor injuriesLimited investigationFinal report
Date
December 29, 2001, 11:30 local (16:30 UTC)
Place
Lajas, PR
Injuries
2 minor
Damage
Substantial damage
Phase of flight
Landing
Aircraft
UNREGPioneer 85
Weather
Visual (VMC) · Day
Status
Completed · report August 26, 2002
Report
Approved by Office Director
Parties
SanJuan FSDO
Case key
53973

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 decision to attempt a go-around after a hard landing that resulted in the overload failure of the flight control brackets and the loss of flight control. The airplane collided with a building during the attempted go-around.

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.

Hard landingLanding - flare/touchdown
Flt control syst,yoke/control stick - overloadCause
Flare - improperPilot in commandCause
Go-around - attemptedPilot in commandCause
Directional control - not possiblePilot in command
Loss of control - on ground/waterLanding - flare/touchdown
In flight collision with objectGo-around (vfr)
Object - building(nonresidential)
Go-around - attemptedPilot in command

Analysis

The pilot stated he experienced a strong gust of wind from the south east within 2 or 3 miles from his destination airport. While announcing his position on frequency 122.9 on approach he experienced another gust and subsequent downdraft. He stated, I applied full power and pulled on the elevator and immediately impacted to the left side of the runway. Review of surface weather observation closest to the accident site revealed there were no recorded gusts or downdrafts. Examination of the crash site revealed the airplane collided with the ground in a nose-down attitude separating the nose gear. The pilot applied max power in an attempted go-around, the airplane collided with the top of a hangar and came to rest on the ground inverted. Examination of the airframe and flight control system revealed no evidence of a pre-crash mechanical failure or malfunction. The plastic brackets that hold the control stick in place were broken during the hard landing resulting in a total loss of directional control of the flight control system.

Factual narrative

On December 29, 2001, at 1130 eastern standard time, an unregistered Pioneer 85 airplane, operating as a 14 CFR part 91 personnel flight, crashed on landing at a private strip in Lajas, Puerto Rico. Visual meteorological conditions prevailed and no flight plan filed. The airplane sustained substantial damage. The private pilot and one passenger reported minor injuries. The flight originated from Mayaguez, Puerto Rico, at 1100.

According to the pilot, he experience a strong gust of wind from the south east within 2 or 3 miles from the Lajas Agricultural Airport. He applied aileron and rudder to put the airplane back on course. He announced his position on frequency 122.9, and received a faint and broken response giving wind information. "At that time we experienced another gust in which I had to apply full left aileron and rudder to correct the course. I decided to land instead of overlying the field as we crossed the fence line next to the field we were hit by a strong downdraft. I applied full power & pulled on the elevator & immediately after impacted to the left side of the runway. I believe that because I had full power at impact the airplane bounced & inverted."

The nearest weather reporting facility at the time of the accident was Eugenio Maria de Hostos Airport, Mayaguez, Puerto Rico. The 1150 surface weather observation was: 4,000 , visibility 10 miles, temperature 86 degrees Fahrenheit, dew point temperature 72 degrees Fahrenheit, wind 080-degrees at 5 knots, and altimeter 30.04. There were no reported gusts or wind shear and visual meteorological conditions prevailed at the time of the accident.

Examination of the a crash site by the FAA revealed the airplane collided with the ground hard on the nose gear separating the nose gear. The pilot applied max power, lost control, hit the top of the hangar, and crashed upside down. Examination of the airframe and flight control system revealed no evidence of a precrash mechanical failure or malfunction. Further examination of the flight control system revealed the plastic brackets that hold the control stick in place were broken during the hard landing resulting in a total loss of directional control of the flight control system. Review of aircraft records revealed the airplane was operating without an annual inspection. The airplane had not been registered and did not have an airworthiness certificate. In addition the pilot was operating the airplane without a current biennial flight review.

Aircraft

Registration
UNREG
Reported as
Pioneer 85
Category
Ultralight, amateur-built
Serial number
DS 1000
Engine
Rotax 582, 65 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Operator
Benjamin Brown
Registered owner
Miguel A Rivera
Airworthiness certificate
Special, Limited (Special); Standard, Normal
Departed
MAZ · Mayaguez, PR
Destination
Lajas, PR
Airport
Lajas Agricultural Airport, runway 090, 1,500 × 40 ft, grass/turf

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
44
Injuries
Minor
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, Valid Medical--no waivers/lim.
Seat
Front
Flight hours
255 total · 2 in this make and model · 125 as pilot in command

Weather

Conditions
Visual (VMC) · Day
Wind
80° at 5 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
86 °F, dew point 72 °F
Altimeter
30.04 inHg
Observed at
JMZ