NYC88FA236

NTSB accident investigation · Cessna 172N · Adams, MA · September 17, 1988

Accident · FatalField investigationFinal report
Date
September 17, 1988, 19:00 local (23:00 UTC)
Place
Adams, MA
Injuries
2 fatal, 1 serious
Damage
Destroyed
Phase of flight
Enroute
Aircraft
N6586JCessna 172N
Weather
Instrument (IMC) · Day
Status
Completed · report July 18, 1990
Report
Approved by Office Director
Safety recommendations
Yes
FAA report
19880917047369A
Case key
36015

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

On this page

Probable cause

Pilot's inadequate preflight planning and improper inflight decisions, he continued VFR into IFR conditions. The air route traffic control center service was improper.

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 encounter with weatherCruise
Preflight planning/preparation - inadequatePilot in commandFactor
Weather condition - cloudsFactor
Weather condition - low ceilingFactor
Weather condition - fogFactor
Vfr flight into imc - continuedPilot in commandCause
In flight collision with terrain/waterManeuvering
Flight advisories - inadequatePilot of other aircraftFactor
Monitoring - inadequateAtc personnel(dep/apch)Factor
Artcc service - inadequateAtc personnel(artcc)Cause
Instructions,written/verbal - inadequateAtc personnel(artcc)Cause
Procedure inadequateCause
Safety advisory - not issuedAtc personnel(artcc)Factor
Inadequate training(emergency procedure(s))Faa(other/organization)Factor
Supervision - inadequateAtc personnel(supervisor)Cause
In flight collision with terrain/waterManeuvering
Terrain condition - mountainous/hillyFactor

Analysis

Drg VFR flt, N6586J enctrd wx, bgn circling hay fld for emerg lndg & made distress call on emerg freq 121.5 mhz. N6586J was too low to ctc ATC facilities, but monarch flt 58 (Boeing 757) heard the plt call & offered to help. Albany apch ctlresponded on same freq (121.5) & flt 58 relayed info to & fm N6586J. Albany ctlr provided info of 3700' mtn peak in vcnty, but plt of flt 58 didn't relay trrn elev to N6586J, nor did the ctlr note the error. Boston ARTCC estab radar ctcwith N6586J & bgn relaying vectors, but ctlr thought plt was providing his own trrn sepn, because he was VFR. Thus, the ctlr issued vector below min vectoring alt (mva), which was 4000' or abv. Plt enctrd IMC & rprtd dscndg to 2500' to "tryto get out of the clouds." Subsequently, acft crashed on mt fitch. ATC handbook allowed vectoring of VFR acft below mvawith no warning of trrn. ATC ctlrs did not adhere to emerg procedures in handbook. The involved supvrs took no action tocorrect the situation. Involved ctlrs lacked trng in handling emergencies concerning VFR plts that enctr wx below mva.

Aircraft

Registration
N6586J
Reported as
Cessna 172N
Category
Airplane
Serial number
172-73895
Airframe hours
1,012
Engine
Lycoming O-320-H2AD, 160 horsepower, reciprocating
Damage
Destroyed
Flight
Personal · Part 91
Registered owner
Larry A. Bugbee
Airworthiness certificate
Standard, Normal
Last inspection
100 hour · August 5, 1988 · 957 hours before
Departed
WST · Westerly, RI
Destination
5B5 · Bennington, VT

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
28
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, Valid Medical--w/ waivers/lim
Seat
Left
Flight hours
68 total · 55 in this make and model · 18 as pilot in command · 22 in the last 90 days · 6 in the last 30 days · 2 in the last 24 hours

Weather

Conditions
Instrument (IMC) · Day
Wind
160° at 20 knots, gusting 30
Temperature
138 °F, dew point 127 °F
Altimeter
30.00 inHg
Observed at
5B5, 15 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.

Other investigations on N6586J · 1

Matched to the same aircraft by N-number and date.