IAD97LA086

NTSB accident investigation · Luscombe LL-8-A · Annapolis, MD · June 11, 1997

Accident · Minor injuriesLimited investigationFinal report
Date
June 11, 1997, 11:00 local (15:00 UTC)
Place
Annapolis, MD
Injuries
1 minor, 1 uninjured
Damage
Destroyed
Phase of flight
Maneuvering
Aircraft
N37095Luscombe LL-8-A
Weather
Visual (VMC) · Day
Status
Completed · report October 30, 1998
Report
Approved by Office Director
FAA report
19970611013779A
Case key
28203

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 failure to use carburetor heat, which resulted in accumulation of carburetor ice and subsequent loss of engine power. Related factors were: carburetor icing conditions, and trees in the emergency landing area.

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(partial) - nonmechanicalManeuvering
Weather condition - carburetor icing conditionsFactor
Carburetor heat - not usedPilot in commandCause
Fuel system,carburetor - iceCause
Forced landingEmergency descent/landing
In flight collision with objectLanding
Object - tree(s)Factor

Analysis

The pilot was performing an aerial survey between 500 and 1,000 feet AGL. As he initiated a turn for the passenger to photograph seagrass, he noted a loss of altitude. He advanced the throttle to increase power, then noted that the engine had lost power. During a forced landing, the airplane struck trees in a wooded area and was damaged. Examination of the airplane revealed 6 to 7 gallons of fuel in the fuel tanks. No water or contamination was found in the fuel system. The temperature and dew point were 82 and 59 degrees, respectively. According to icing probability charts, conditions were conducive for carburetor ice. The carburetor heat control was found in the off position.

Factual narrative

On June 11, 1997, at 1100 eastern daylight time, a Luscombe LL-8-A, N37095, was destroyed when it collided with trees during a forced landing near Annapolis, Maryland. The certificated private pilot was not injured while the passenger sustained minor injuries. Visual meteorological conditions prevailed and a flight plan was not filed. The personal flight was conducted under 14 CFR Part 91. The local flight had originated from Severn River, Maryland, at approximately 1030.

According to a Federal Aviation Administration (FAA) Inspector, the pilot was performing an aerial survey between 500 and 1000 feet above the ground, when the engine lost power.

The pilot reported that as he approached one of the creeks, he initiated a turn so that the passenger could take a picture of the seagrass, when the airplane started to lose altitude. He stated that his efforts to maintain altitude by adding full power was unsuccessful. Despite a full forward throttle setting, the airplane continued to lose altitude and power. The pilot performed a forced landing to a wooded area where the right wing struck a 20 foot tall tree.

The airplane was examined at the accident site by the FAA Inspector. According to the Inspector's report, there was about 6 to 7 gallons of fuel in the fuel tanks, and no water or contamination was found in the fuel system. Examination of the wreckage did not disclose any evidence of mechanical malfunction with the airplane or engine, and the carburetor heat switch was in the off position.

The reported temperature and dew point at the time of accident was 82 degrees Fahrenheit (F), and 59 degrees F respectively. According to carburetor icing charts, conditions were conducive for carburetor ice.

Aircraft

Registration
N37095
Reported as
Luscombe LL-8-A
Category
Airplane
Serial number
1756
Airframe hours
1,476
Engine
Continental A-65-8F, 65 horsepower, reciprocating
Damage
Destroyed
Flight
Personal · Part 91
Operator
David J Wallace
Registered owner
Janice Costello
Airworthiness certificate
Standard, Normal
Last inspection
Annual · April 18, 1997 · 7 hours before
Departed
NONE · Severn, MD

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
47
Certificate
Private
Airplane ratings
Single-engine sea, Single-engine land
Medical
Class 3, Valid Medical--no waivers/lim.
Seat
Right
Flight hours
5,000 total · 50 in this make and model · 90 in the last 90 days · 30 in the last 30 days

Weather

Conditions
Visual (VMC) · Day
Wind
290° at 4 knots
Visibility
10 statute miles
Lowest ceiling
25,000 ft broken
Temperature
82 °F, dew point 59 °F
Altimeter
30.00 inHg
Observed at
BWI, 6 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.