IAD96LA120

NTSB accident investigation · Cessna 172 · Stowe, VT · July 19, 1996

Accident · No injuriesLimited investigationFinal report
Date
July 19, 1996, 18:55 local (22:55 UTC)
Place
Stowe, VT
Injuries
2 uninjured
Damage
Destroyed
Phase of flight
Approach
Aircraft
N5091GCessna 172
Weather
Instrument (IMC) · Day
Status
Completed · report March 31, 1998
Report
Approved by Office Director
FAA report
19960719018899A
Case key
28087

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

failure of the pilot to follow proper IFR procedures and to maintain proper terrain clearance (altitude) during an NDB approach. Factors related to the accident were: the pilot's lack of instrument experience, low ceiling, and mountainous terrain.

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 terrain/waterApproach
Weather condition - low ceilingFactor
Ifr procedure - not followedPilot in commandCause
Terrain condition - mountainous/hillyFactor
Proper altitude - not maintainedPilot in commandCause
Lack of total instrument timePilot in commandFactor

Analysis

While approaching from the southwest, the pilot was cleared for an NDB approach to the Morrisville Airport. To perform the approach, he was to proceed outbound (050 deg) from the initial approach fix (IAF), make a procedure turn at or above 4,000 ft within 10 nautical miles of the NDB, proceed inbound to the NDB on a course of 230 deg with a minimum altitude of 3,000 ft to the final approach fix (FAF), then fly a course of 223 deg for 2.4 miles to the airport with a minimum descent altitude of 2,000 ft. The pilot stated that he proceeded (outbound from the IAF) on a heading of 050 degrees for about two minutes, completed a procedure turn and took a heading of about 245 to 250 degrees to compensate for the wind conditions. He said he descended to 3000 ft, then 2500 ft after crossing the NDB. He said the needle swing seemed appropriate. However, he was off course. An FAA inspector reported that during the approach, a crosswind blew the airplane off-course to the east, which resulted in an impact with Elmore Mountain (southeast of the FAF). The pilot received his instrument rating on 4/13/96 and had accumulated 4.7 hrs of actual instrument time. The inspector stated that the pilot had made one ADF approach in non-mountainous terrain since the issuance of his instrument rating.

Factual narrative

History of flight

On July 19, 1996, at about 1830 eastern daylight time, N5091G, a Cessna 172N, owned by APS Leasing Inc., and operated by the private pilot crashed into trees on the side of a mountain while on an NDB approach to Morrisville airport, Stowe, Vermont. The pilot and one passenger were not injured and the aircraft was destroyed. Instrument meteorological conditions existed, and an IFR flight plan was filed. The flight originated from Islip, New York at 1430, and was operated under the provisions of 14 CFR Part 91.

The pilot stated that he was handed off by Air Traffic Control southwest of the JRV None Directional Beacon (NDB). He said that he proceeded to the NDB at or above 6000 feet Mean See Level (MSL), descended to 4000 feet after crossing the JRV, NDB. He said he proceeded on a heading of 050 degrees for two minutes, completed a procedure turn and took a heading of approximately 245 to 250 degrees to compensate for the wind. He said he descended to 3000 feet then 2500 feet after crossing the NDB. He said the needle swing seemed appropriate. However, he said that he was off course.

According to the Federal Aviation Administration Inspector assigned to the case the pilot received his instrument rating on April 13, 1996, and that he had accumulated 4.7 hours of actual instrument time and 163.3 hours total time since May 1991. The Inspector stated that the pilot had executed one ADF approach in Non-mountainous terrain since the issuance of his instrument rating. The pilot stated to the FAA Inspector that he did not know were he was on the approach.

Wreckage examination/documentation

The aircraft came to rest inverted with the tail resting against a tree. Both wings were destroyed. The empannage was distorted as a result of the impact. The FAA Inspector who examined the aircraft noted no pre-existing damage or system failures.

Aircraft

Registration
N5091G
Reported as
Cessna 172
Category
Airplane
Serial number
17273540
Engine
Lycoming O-320, 160 horsepower, reciprocating
Damage
Destroyed
Flight
Personal · Part 91
Operator
Brad W. Brenner
Registered owner
Aps Leasing Corp
Airworthiness certificate
Standard, Normal; Standard, Utility
Departed
ISP · Islip, NY
Destination
MVL · VT
Flight plan
IFR
Airport
MVL · Morrisville, runway 19, 3,701 × 75 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
39
Certificate
Private
Airplane ratings
Single-engine land
Instrument ratings
Airplane
Medical
Class 3, Valid Medical--no waivers/lim.
Seat
Left
Flight hours
168 total · 70 in this make and model · 90 as pilot in command · 8 in the last 90 days · 8 in the last 30 days · 5 in the last 24 hours

Weather

Conditions
Instrument (IMC) · Day
Wind
330° at 20 knots, gusting 28
Visibility
2 statute miles
Altimeter
29.00 inHg
Observed at
MVL

FAA reports on this event · 1

The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.