NYC95LA015

NTSB accident investigation · Cessna 172B · Honesdale, PA · October 21, 1994

Accident · No injuriesLimited investigationFinal report
Date
October 21, 1994, 15:35 local (19:35 UTC)
Place
Honesdale, PA
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Approach
Aircraft
N7491ECessna 172B
Weather
Visual (VMC) · Day
Status
Completed · report April 5, 1995
Report
Approved by Office Director
Case key
38890

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 fuel selector was in the improper position, which resulted in a total loss of engine power, due to fuel starvation, a forced landing, and subsequent impact with a stone wall.

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.

Loss of engine power(total) - nonmechanicalApproach
Fuel tank selector position - improperPilot in commandCause
Fluid,fuel - starvationCause
Forced landingDescent - emergency
On ground/water collision with objectLanding - roll
Object - wall/barricade

Analysis

The airplane was on approach to runway 35, and was turning to the base leg when the airplane's engine lost power. The pilot elected to make a forced landing in a field, south of the airport, and struck a rock wall. At the accident site the fuel selector was found on the left fuel tank, and the left fuel tank had less then 1 gallon of fuel. According to the checklist used by the student pilot during the pre-flight inspection, he was to, 'check the fuel shutoff valve 'on.' According to Cessna's 172B manual, the fuel selector has four positions which are labeled 'both off,' 'left tank,' 'right tank,' and 'both on.' The Cessna manual states, 'the 'both on' position provides fuel flow from both tanks simultaneously to provide maximum safety.' The 'both on' position is where the fuel selector should be for takeoff landing, and normal operations. An examination of the engine revealed no discrepancies.

Factual narrative

On October 21, 1994, at 1535 eastern daylight time, a Cessna 172, N7491X, piloted by Avi Sitbou, was substantially damaged during a forced landing at the Cherry Ridge Airport (N30), Honesdale, Pennsylvania. The student pilot was not injured. Visual meteorological conditions prevailed and no flight plan had been filed for the flight operating under 14 CFR 91.

The airplane was on approach to runway 35, when the engine lost power. The pilot elected to make a forced landing in a field, south of the airport, and struck a rock wall.

According to the pilot's written statement on the NTSB Form 6120.1/2, prior to his flight in N7491X, a mechanic had "checked the plane and then someone flew the plane for approximately 12 minutes...." The pilot wrote that "before flying [he] performed the standard check list found in the plane." According to the pilot's written statement:

The gas tank indicator showed that the right tank was full and the left tank was half full at the time of the prior person's use.

The pilot wrote that he was airborne for approximately 24 minutes, and on the downwind leg, when "the engine started to choke." The pilot said he put the carburetor heat in the "off" position, and "got a couple more spins on the propeller." He was able turn onto the base leg, but the engine lost total power. The pilot realized that he would not reach the runway, and he elected to land in a field.

The FAA inspected the airplane's engine on October 24, 1994, and the engine revealed no discrepancies. FAA Inspector, Roderick Bourey, wrote in his statement that the checklist indicated that the fuel selector valve should have been selected to "both" tanks.

According to Inspector, Bourey's written statement, "...[the] carburetor showed only small traces of fuel...the left [fuel tank] showed about one gallon of fuel." The airport manager, Mr. Richard Enger, told Inspector Bourey, that he was at the scene of the accident, and he found the fuel selector on the left fuel tank, and the left fuel tank visually showed less then 1 gallon of fuel.

Additional information

According to the Cessna 172B, manual, the fuel selector has four positions which are labeled "BOTH OFF," "LEFT TANK," "RIGHT TANK," and "BOTH ON." The Cessna Manual states, "The "BOTH ON" position provides fuel flow from both tanks simultaneously to provide maximum safety."

Section 2, Page 2-1, of the Cessna Manual, under the heading "BEFORE STARTING THE ENGINE," item #6, states the fuel selector should in the "BOTH ON" position. Likewise on Page 2-3, under the heading "BEFORE LANDING," ITEM #1, the fuel selector should be positioned to "BOTH ON."

A copy of the check list the pilot got from the airplane, and used for his pre-flight inspection, under item #1e, states, "Check the fuel shutoff valve "ON." There is no other reference to the fuel selector, either in the before starting engine, or the before landing section.

Aircraft

Registration
N7491E
Reported as
Cessna 172B
Category
Airplane
Serial number
17247991
Airframe hours
2,053
Engine
Continental O-300D, 145 horsepower, reciprocating
Damage
Substantial damage
Flight
Instructional · Part 91
Registered owner
Bernie Kopich
Airworthiness certificate
Standard, Normal
Airport
N30 · Cherry Ridge, runway 35, 2,400 × 75 ft, asphalt

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
37
Certificate
Student
Medical
Class 3, Unknown
Seat
Left
Flight hours
50 total · 45 in this make and model · 12 as pilot in command · 50 in the last 90 days · 25 in the last 30 days · 1 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
330° at 10 knots, gusting 15
Visibility
25 statute miles
Lowest ceiling
None
Temperature
70 °F, dew point 50 °F