IAD03LA025

NTSB accident investigation · Mooney 20J · Morristown, NJ · January 5, 2003

Accident · No injuriesLimited investigationFinal report
Date
January 5, 2003, 13:15 local (18:15 UTC)
Place
Morristown, NJ
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Initial climb
Aircraft
N1074ZMooney 20J
Weather
Visual (VMC) · Day
Status
Completed · report August 26, 2003
Report
Approved by Office Director
Parties
FAA/FSDO
FAA report
20030105035229A
Case key
56287

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

On this page

Probable cause

Ice in the fuel system, which resulted in restricted fuel flow and a subsequent loss of engine power.

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 powerTakeoff - initial climb
Fuel system - iceCause
Fuel system - flow restricted
Forced landingEmergency landing after takeoff
In flight collision with terrain/waterEmergency landing after takeoff
Landing gear - collapsed
Terrain condition - ground

Analysis

Shortly after departure, at an altitude of about 700 feet, the airplane's engine sputtered, then lost power. The pilot initiated a right turn back toward the airport, and attempted a forced landing to a taxiway. During the landing, the airplane's left main landing gear collapsed and the left wing hit the ground. Examination of the airplane's fuel tanks shortly after the accident revealed they were full; however, only a trace of fuel was observed in the fuel filter bowl. The fuel tanks were sumped, and fuel flow was observed to be lower than normal, although no water or ice was observed. After the airplane was thawed in a hangar overnight, fuel flow increased. When the engine was subsequently test run on the airframe, it started without hesitation and ran continuously at various power settings. The airplane had been parked outside during the night prior to the accident flight. The low temperature that night was 28 degrees Fahrenheit, and the dewpoint was 28 degrees Fahrenheit. In addition, light snow and mist were reported throughout the night. According to the pilot, he cleared a significant amount of ice from the airplane during the preflight inspection. Temperature at the time of the accident was 34 degrees Fahrenheit.

Factual narrative

On January 5, 2003, at 1315 eastern standard time, a Mooney M20J, N1074Z, was substantially damaged during a forced landing, shortly after takeoff from Morristown Municipal Airport (MMU), Morristown, New Jersey. The certificated private pilot and the passenger were not injured. Visual meteorological conditions prevailed, and no flight plan was filed for the local personal flight conducted under 14 CFR Part 91.

According to the pilot, he performed an extensive preflight inspection, during which, he cleared a significant amount of ice from the airplane. Water had accumulated near the fuel caps on the wings; however, he was confident that he had cleared all of it from the surface prior to start-up. He additionally sumped the fuel tanks and checked the air filters, noting no water or contamination.

The pilot performed a run-up inspection prior to departure, and observed no abnormalities. He departed from runway 23, and retracted the landing gear during the initial climb. When the airplane reached an altitude of about 700 feet, the engine "sputtered and lost power." The pilot immediately initiated a right turn back toward the airport, and prepared for a forced landing on taxiway D. During the turn, he attempted unsuccessfully to restart the engine, and after he cleared trees on final approach, he extended the landing gear.

During the landing, the airplane's left main landing gear collapsed, the left wing hit the ground, and the airplane slid to a stop.

The pilot reported that the airplane was re-fueled to "full tanks" prior to takeoff from Morristown.

The airplane was examined while on the ramp, shortly after the accident, under the direction of a Federal Aviation Administration (FAA) inspector. Examination of the fuel tanks revealed they were full; however, only a trace of fuel was observed in the fuel filter bowl. The fuel tanks were then sumped, and the fuel flow was observed to be lower than normal, although no water or ice was observed.

The airplane was thawed in a hangar overnight and the fuel tanks were sumped again. The fuel flow was then observed to increase. The engine was test run on the airframe, and it started without hesitation and ran continuously at various power settings for several minutes.

Weather reported at the Essex County Airport (CDW), Caldwell, New Jersey, 8 nautical miles to the northeast, at 1253, included winds from 190 degrees at 4 knots, overcast clouds at 2,700 feet, temperature 34 degrees Fahrenheit, dew point 25 degrees Fahrenheit, and altimeter setting 30.08 inches Hg. The low temperature reported on the night prior to the accident was 28 degrees Fahrenheit, and the dew point was 28 degrees Fahrenheit. In addition, light snow and mist were reported throughout the night.

Aircraft

Registration
N1074Z
Reported as
Mooney 20J
Category
Airplane
Serial number
24-3150
Airframe hours
1,974
Engine
Lycoming IO-360-A3B6D, 200 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
Emzon Shung
Airworthiness certificate
Standard, Normal
Last inspection
Annual · August 1, 2002 · 66.2 hours before
Departed
MMU · Morristown, NJ
Airport
MMU · Morristown municipal, runway 23, 1,000 × 50 ft, asphalt

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
37
Injuries
None
Certificate
Private
Airplane ratings
Single-engine land
Instrument ratings
Airplane
Medical
Class 3, Valid Medical--w/ waivers/lim
Last flight review
December 1, 2001
Seat
Left
Flight hours
650 total · 350 in this make and model · 530 as pilot in command · 53 in the last 90 days · 7 in the last 30 days · 0 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
190° at 4 knots
Visibility
10 statute miles
Lowest ceiling
2,700 ft overcast
Temperature
34 °F, dew point 25 °F
Altimeter
30.07 inHg
Observed at
CDW, 19 nm away

Docket · 3

The files NTSB released with the investigation on June 24, 2003, on NTSB’s docket system: statements, records, photos and specialists’ reports. 585 KB in all.

FAA reports on this event · 1

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