Piper PA-23-250 N10GL

Summary

On 6 October 1993 at about 16:35 local time, a Piper PA-23-250 registered N10GL, operated by ROY I. Arroll, was involved in an accident near East Hampton, New York, United States. 2 people were on board and 2 died. The aircraft was destroyed. The NTSB has published a probable cause for this accident; it is quoted in full below.

Date

6 October 1993 at 16:35

Classification

Accident

Location

East Hampton, New York, United States

Nearest airport

East Hampton (HTO)

Coordinates

40.9510, -72.1898

Aircraft

Piper PA-23-250

Registration

N10GL

Category

Airplane

Engines

2

Operator

ROY I. Arroll

Operating rule

Part 91: General Aviation

Purpose of flight

Instructional

Phase of flight

Not recorded

Route

Islip → Unknown

Aircraft damage

Destroyed

Weather

VMC

Light

Day

NTSB number

NYC94FA004

2 people died.

INADVERTENT FEATHERING OF BOTH PROPELLERS BY THE STUDENT PILOT, WHICH RESULTED IN A LOSS OF POWER, AND FAILURE (OR INABILITY) OF THE INSTRUCTOR PILOT (CFI) TO ATTAIN REMEDIAL ACTION. A FACTOR RELATED TO THE ACCIDENT WAS: THE STUDENT PILOT'S HABIT INTERFERENCE, CONCERNING THE DIFFERENT POSITION OF THE ENGINE CONTROLS IN THIS AIRPLANE, AS COMPARED THE THE PREVIOUS AIRPLANE THAT HE HAD FLOWN.

Quoted verbatim from the NTSB record. This site does not paraphrase or interpret it.

Read the full NTSB narrative

THE FLIGHT, INVOLVING AN INSTRUCTOR AND STUDENT, CRASHED IN A WOODED AREA ABOUT A MILE SOUTHEAST OF RUNWAY 28 AT EAST HAMPTON AIRPORT. THE PILOT RADIOED 10 MILES WEST OF THE AIRPORT, REQUESTED, AND RECEIVED AIRPORT ADVISORIES. NO OTHER KNOWN RADIO CALLS WERE MADE BY THE PILOT. A WITNESS NEAR THE ACCIDENT SITE, FIRST HEARD AN AIRPLANE; LATER, HE HEARD THE ENGINE SOUNDS STOP. AFTER ABOUT ANOTHER 40 SECONDS, HE HEARD THE SOUND OF A CRASH. AN INVESTIGATION REVEALED THAT BOTH PROPELLERS WERE FEATHERED; AN EXAMINATION OF THE AIRPLANE DID NOT DISCLOSE EVIDENCE OF MECHANICAL MALFUNCTION. THE STUDENT WAS A 3500 HOUR COMMERCIAL CERTIFICATED PILOT WHO WAS TRAINING FOR A MULTIENGINE RATING. THE INVESTIGATION ALSO REVEALED THAT ON PREVIOUS TRAINING FLIGHTS, THE STUDENT HAD DEMONSTRATED A LACK OF PROFICIENCY IN THE PERFORMANCE OF SIMULATED INSTRUMENT AND EMERGENCY PROCEDURES. ALSO, THE INVESTIGATION REVEALED THAT THE STUDENT HAD PREVIOUSLY FLOWN A BEECH 95, WHICH HAD REVERSE PLACEMENT OF THROTTLES, PROPS, AND MIXTURE CONTROLS.

Quoted verbatim from the NTSB record.