IAD97LA120

NTSB accident investigation · Piper PA-28R-180 · Danbury, CT · September 18, 1997

Accident · Serious injuriesLimited investigationFinal report
Date
September 18, 1997, 05:35 local (09:35 UTC)
Place
Danbury, CT
Injuries
3 serious, 1 minor
Damage
Destroyed
Phase of flight
Initial climb
Aircraft
N3102RPiper PA-28R-180
Weather
Instrument (IMC) · Dawn
Status
Completed · report November 10, 1998
Report
Approved by Office Director
FAA report
19970918027199A
Case key
28233

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 improper planning/decision to not use actual occupant weights and compute takeoff data, which resulted in an overweight takeoff towards rising 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/waterTakeoff - initial climb
Terrain condition - risingFactor
Planning/decision - improperPilot in commandCause
Climb - not attained
Aircraft weight and balance - exceededPilot in commandCause

Analysis

The pilot said that during initial climb the engine lost power, and they crashed into trees. Examination of the airplane did not disclose any evidence of mechanical malfunction with the engine or the airplane. The three passengers said they did not see the pilot complete a weight and balance, neither did he ask them what their weights were, nor did he weigh their baggage. When their actual weights and baggage were computed, the airplane was 233 pounds over its maximum takeoff gross weight 2,500 pounds. One of the occupants said that he heard the stall warning horn just before the airplane struck the trees.

Factual narrative

On September 18, 1997 about 0535 eastern daylight time, N3102R, a Piper PA-28R-180 was destroyed and consumed by fire after it collided with rising, wooded terrain shortly after takeoff from the Danbury Municipal Airport, Danbury, Connecticut. Instrument meteorological conditions prevailed, and an instrument flight plan was filed. The certificated airline transport pilot, and two passengers were seriously injured; a third passenger received minor injuries. The flight was conducted under 14 CFR Part 91, and the intended destination was Fairmont, West Virginia.

The pilot said that on climb out, he "experienced power failure and crashed into trees." He obtained a weather briefing the night before, and he used a short field takeoff with two notches of flaps. He said he established a positive rate of climb of 300 feet per minute (fpm), and when he selected gear up, the rate decreased to 100 fpm. He said it felt like it ran out of power, and the stall warning horn came on just after the first tree strike.

According to a Federal Aviation Administration (FAA) Inspector, the pilot reported that he experienced degraded climb performance of the airplane during the takeoff climb from runway 26. The airplane then struck trees, about 1/4 mile beyond the runway. The airplane wreckage was strewn a distance of about 200 feet, and oriented on a 250-degree magnetic heading. The wings separated during the impact sequence, and the fuselage came to rest on its left side, and was destroyed by fire.

The FAA Inspector reported that the three passengers said that the engine appeared to be operating normally. He said there were scars in the trees with 8 inch diameter cuts similar to propeller strikes. He said the pilot reported that there was no problem with the flight control system, and examination did not disclose any evidence of mechanical malfunction with the engine or the airplane.

The pilot stated that he computed a weight and balance, but that it was destroyed in the fire. He said he estimated the passengers weights and their baggage. The airplane's calculated takeoff weight was 2,517 pounds, based upon the weights the pilot had used.

The three passengers in the airplane said that they did not see the pilot complete a weight and balance, and neither did he ask them their personal weights, or the weights of their baggage. One of the passengers said he was worried about all the weight in the airplane, and that he heard the stall warning horn just before the airplane struck trees.

The actual weights of the passengers and baggage were obtained. These weights computed a takeoff weight of 2,733 pounds. According to the owner's operating manual, the certificated maximum takeoff gross weight was 2500 pounds.

Aircraft

Registration
N3102R
Reported as
Piper PA-28R-180
Category
Airplane
Serial number
28R-31108
Airframe hours
6,096
Engine
Lycoming IO-360-B1E, 180 horsepower, reciprocating
Damage
Destroyed
Fire
On-Ground
Flight
Personal · Part 91
Registered owner
New England Aircraft Sales
Airworthiness certificate
Standard, Normal
Last inspection
Annual · June 26, 1997
Departed
DXR
Destination
4G7 · Fairmont, WV
Flight plan
Unknown
Airport
DXR · Danbury Muni, runway 26, 4,422 × 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
45
Certificate
Airline transport
Airplane ratings
Single-engine land, Multi-engine land
Instrument ratings
Airplane
Medical
Class 1, Valid Medical--w/ waivers/lim
Seat
Left
Flight hours
1,745 total

Weather

Conditions
Instrument (IMC) · Dawn
Wind
Calm
Visibility
1.75 statute miles
Lowest ceiling
25,000 ft overcast
Temperature
66 °F, dew point 66 °F
Altimeter
29.00 inHg
Observed at
DXR

FAA reports on this event · 1

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