Dial-Thorp T-18 N11BD

Summary

On 12 June 1983 at about 16:30 local time, a Dial-Thorp T-18 registered N11BD, operated by James Mario Dyer, was involved in an accident near Morristown, New Jersey, United States. One person was on board and one died. The aircraft was destroyed. No probable cause statement is available for this record.

Date

12 June 1983 at 16:30

Classification

Accident

Location

Morristown, New Jersey, United States

Nearest airport

Morristown (MMU)

Coordinates

Not recorded

Aircraft

Dial-Thorp T-18

Registration

N11BD

Category

Airplane

Engines

1

Operator

James Mario Dyer

Operating rule

Part 91: General Aviation

Purpose of flight

Personal

Phase of flight

Not recorded

Aircraft damage

Destroyed

Weather

VMC

Light

Day

NTSB number

NYC83FHM02

1 person died.

The NTSB has not published a probable cause for this record. No probable cause statement is present in the source data.

Nothing about the cause is stated here that is not in the source record.

Read the full NTSB narrative

THE PLT HAD BEEN ACTIVE IN ORGANIZING AN AIR SHOW, BUT WAS NOT CONSIDERED A PARTICIPANT. HOWEVER, HIS HOME BUILT ACFT WAS ON STATIC DISPLAY. ON THE 2ND DAY OF THE SHOW, THE CHAIRMAN OF THE EVENT GAVE HIM PERMISSION TO DO A FLY-BY. SUBSEQUENTLY, HE INITIATED A PASS DOWN RWY 23 AT AN ALTITUDE OF APRX 150 FT AGL. DURING THE PASS, THE ACFT BEGAN TO PORPOISE, MADE 2 OSCILLATIONS ABOUT THE LATERAL AXIS, THEN BEGAN TO DISINTEGRATE. WHILE STILL IN FLT, THE WINGS, FLAPS, VERTICAL STABILIZER, RUDDER, RIGHT HORIZONTAL STABILIZER & PARTS OF THE CANOPY SEPARATED. THE FUSELAGE THEN ROLLED SLIGHTLY TO THE RIGHT, CRASHED & BURNED. THE ACFT WAS NOT CERTIFICATED FOR AEROBATIC FLT. THE MANUFACTURER OF THE KIT (FROM WHICH THE ACFT WAS BUILT) RECOMMENDED THE CRUISE SPEED (VNO) BE 172 MPH & THE NEVER EXCEED SPEED (VNE) BE 210 MPH. THE ACFT'S AIRSPEED INDICATOR WAS CALIBRATED IN KTS & WAS MARKED WITH THE VNO & VNE AT 170 & 213 KTS (196 & 244 MPH), RESPECTIVELY. PSEUDOEPHEDRINE & CHLORPHENIRAMINE FOUND IN PLT'S URINE.

Quoted verbatim from the NTSB record.