NYC96LA170

NTSB accident investigation · Grumman American AA-1B · Tafton, PA · August 17, 1996

Accident · Minor injuriesLimited investigationFinal report
Date
August 17, 1996, 10:20 local (14:20 UTC)
Place
Tafton, PA
Injuries
2 minor
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N9611LGrumman American AA-1B
Weather
Visual (VMC) · Day
Status
Completed · report May 23, 1997
Report
Approved by Office Director
FAA report
19960817029819A
Case key
39231

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 misjudgment of speed and distance during the landing.

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.

OverrunLanding - roll
Distance/speed - misjudgedPilot in commandCause
On ground/water encounter with terrain/waterLanding - roll

Analysis

The pilot's first approach to the 2,200-foot paved strip was high and fast, and he performed a go-around. During his second approach, he touched down about 700 feet from the approach end and applied brakes. The pilot determined that there was insufficient distance remaining to abort the landing, and the airplane ran off the end of the runway down an embankment. The Owner's Manual listed the total required landing distance to be 1,320 feet, with a ground roll of 520 feet, to clear a 50 foot obstacle.

Factual narrative

On August 17, 1996, at 1020 eastern daylight time, a Grumman American AA-1B, N9611L, was substantially damaged when it ran off the end of the runway at a private airstrip in Tafton, Pennsylvania. The certificated private pilot and passenger received minor injuries. Visual meteorological conditions prevailed for the personal flight that originated at Mount Pocono, Pennsylvania, about 0945. No flight plan had been filed for the flight conducted under 14 CFR Part 91.

In the NTSB Form 6120.1/2, the pilot stated that his first approach to runway 30, a 2,200 foot paved strip, was high and fast, and he performed a go-around.

He further stated:

"...Extended downwind and resulting final to approach between 70-65 knots. Touched down approximately 700 feet from approach end, began applying brakes. Judged remaining length and speed insufficient for abort. Continued braking and ran over end of runway, down a 50 foot embankment..."

According to a Federal Aviation Administration Inspector's report, witnesses confirmed the events related by the pilot, and that the pilot stated that he did not experience any mechanical problems with the airplane. He also stated that the damage to the airplane occurred during the impact at the bottom of the embankment.

The Owner's Manual listed landing distances to clear 50 foot obstacles, for hard surface runways, airplane at maximum gross weight, flaps down, no wind, and at an indicated airspeed of 78 MPH. The manual listed a total required distance of 1,320 feet, with a ground roll of 520 feet, on a runway at 2,000 feet pressure altitude, and 52 degrees F outside air temperature.

The pilot's total flying experience was about 119 hours of which 62 hours were as pilot-in-command.

Aircraft

Registration
N9611L
Reported as
Grumman American AA-1B
Category
Airplane
Serial number
0265
Engine
Lycoming O-235-C2C, 108 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
Hortman Aviation
Airworthiness certificate
Standard, Normal
Departed
MPO · Mount Pocono, PA
Destination
NONE
Airport
NONE · Mountain Bay, runway 30, 2,200 × 50 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
43
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, Valid Medical--no waivers/lim.
Seat
Left
Flight hours
119 total · 117 in this make and model · 62 as pilot in command · 5 in the last 90 days · 4 in the last 30 days · 1 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
Calm
Visibility
9 statute miles
Lowest ceiling
1,600 ft broken
Temperature
66 °F, dew point 63 °F
Altimeter
30.00 inHg
Observed at
AVP, 20 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 N9611L · 1

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