NYC92LA020

NTSB accident investigation · Piper PA-23-250 · Groton, CT · October 27, 1991

Accident · Serious injuriesLimited investigationFinal report
Date
October 27, 1991, 18:57 local (23:57 UTC)
Place
Groton, CT
Injuries
1 serious, 2 minor
Damage
Substantial damage
Phase of flight
Approach
Aircraft
N14256Piper PA-23-250
Weather
Instrument (IMC) · Day
Status
Completed · report April 27, 1993
Report
Approved by Office Director
FAA report
19911027048139A
Case key
37101

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 failure to maintain the minimum descent altitude during the approach. A factor was pilot fatigue.

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.

In flight collision with objectApproach - faf/outer marker to threshold (ifr)
Object - tree(s)
Minimum descent altitudePilot in commandCause
FatiguePilot in commandFactor
Weather condition - below approach/landing minimums
Weather condition - fog
In flight collision with terrain/waterDescent - uncontrolled

Analysis

The instrument rated private pilot had flown in IMC conditions on two IFR flight plans throughout the day from miami, Florida to Groton, Connecticut. He had updated his destination and alternate weather while en route and knew of the continuing conditions. After reporting babet intersection and receiving clearance for the approach to land for runway 23, the pilot descended the airplane to approximately 680 feet MSL and engaged the autopilot. The airplane descended slowly below the minimum descent altitude and impacted a wooded area approximately 1.5 miles from the airport. The pilot was visually scanning out the airplane's window and did not note the descent before impact. He reported no failures to any airplane system or radios. The FAA coordinator found nothing unusual with the airplane and did state that the pilot reported being tired at the time of the approach. The minimum descent altitude was 660 feet.

Aircraft

Registration
N14256
Reported as
Piper PA-23-250
Category
Airplane
Serial number
27-4818
Airframe hours
3,707
Engine
Lycoming IO-540-C4B5, 250 horsepower, reciprocating
Damage
Substantial damage
Flight
Business · Part 91
Operator
Better Val-U, Inc.
Registered owner
Better Val-U, Inc.
Airworthiness certificate
Standard, Normal
Last inspection
Annual · September 25, 1991 · 50 hours before
Departed
CRE · N. Myrtle Beach, SC
Flight plan
IFR
Airport
GON · Groton-New London, runway 23, 5,000 × 150 ft, asphalt

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
32
Certificate
Private
Airplane ratings
Single-engine land, Multi-engine land
Instrument ratings
Airplane
Medical
Class 2, Valid Medical--w/ waivers/lim
Seat
Left
Flight hours
652 total · 245 in this make and model · 558 as pilot in command · 62 in the last 90 days · 21 in the last 30 days · 3 in the last 24 hours

Weather

Conditions
Instrument (IMC) · Day
Wind
230° at 7 knots
Temperature
59 °F, dew point 59 °F
Altimeter
30.00 inHg
Observed at
GON, 2 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.