ATL98LA084

NTSB accident investigation · Bellanca 17-31A · Millry, AL · June 15, 1998

Accident · No injuriesLimited investigationFinal report
Date
June 15, 1998, 17:55 local (22:55 UTC)
Place
Millry, AL
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Enroute
Aircraft
N39853Bellanca 17-31A
Weather
Visual (VMC) · Day
Status
Completed · report May 19, 1999
Report
Approved by Office Director
FAA report
19980615013589A
Case key
45747

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 fracture of the #2 cylinder connecting rod which resulted in partial loss of engine power and subsequent forced landing. A factor in the accident was the rough 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.

Loss of engine power(partial) - mech failure/malfCruise
Engine assembly,connecting rod - fracturedCause
Engine assembly,piston - jammedCause
Engine assembly,push rod - bentCause
On ground/water encounter with terrain/waterEmergency landing
Terrain condition - rough/unevenFactor

Analysis

While in cruise flight, the airplane engine's #2 cylinder connecting rod suffered a fracture. This resulted in the #2 piston becoming jammed in the cylinder and bending of the #2 cylinder intake valve pushrod. These events resulted in partial loss of engine power and a forced reduction in power setting. The pilot performed an emergency landing whereon the landing roll, the airplane skidded and turned in efforts to avoid a collision with a tree/fence row. The turn resulted in a collapse of the right main landing gear and right wing collision with the terrain. The landing gear broke off the aircraft, punctured the right main fuel cell, broke the main right wing wood spar and bent the right fuselage stringers. The outboard 36' of main right wing was severed from the airframe.

Factual narrative

On June 15, 1998, about 1755 Central Daylight Time, a Bellanca BL-17-31A, N39853, collided with terrain during a forced landing near Millry, Alabama. The airplane was operated by the pilot under the provisions of Title 14 CFR Part 91, and visual flight rules. Visual meteorological conditions prevailed and no flight plan was filed for the personal flight. The private pilot and sole occupant was not injured, and the airplane sustained substantial damage. The flight originated from Dekalb-Peachtree Airport in Atlanta, Georgia at 1645 Eastern Daylight Time for Corpus Christi, Texas.

According to the pilot, while in cruise flight, the engine noise changed as the engine appeared to lose 15 to 30 percent of its power. According to the pilot, a moderate vibration began a few seconds later causing him to reduce power to idle and execute a forced landing. Upon landing, the pilot stated, "the field had lots of washboard effect."

According to Federal Aviation Administration (FAA) inspectors who examined the wreckage, the airplane skidded approximately 300-320 yards upon landing. In an attempt to avoid a collision with a tree/fence row, the pilot attempted to turn the aircraft to the left. Inspector's noted the right main landing gear collapsed, the right main fuel cell punctured, main right wing wood spar broken at the fuselage attachment point, bending of the right fuselage stringers and 36" of the right wingtip was torn from the airframe. Examination of the aircraft engine revealed a fractured #2 cylinder connecting rod, #2 piston jammed in the cylinder and a bent #2 cylinder intake valve pushrod.

Aircraft

Registration
N39853
Reported as
Bellanca 17-31A
Category
Airplane
Serial number
73-32-97
Airframe hours
3,048
Engine
Lycoming IO-540-K1E5, 300 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
H R Aircraft Leasing Inc.
Airworthiness certificate
Standard, Normal
Last inspection
Annual · October 10, 1997 · 92 hours before
Departed
PDK · Atlanta, GA
Destination
CRP · Corpus Christi, TX

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
54
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, Valid Medical--w/ waivers/lim
Seat
Left
Flight hours
2,880 total · 1,759 in this make and model · 2,755 as pilot in command · 30 in the last 90 days · 13 in the last 30 days

Weather

Conditions
Visual (VMC) · Day
Wind
210° at 14 knots, gusting 20
Visibility
10 statute miles
Lowest ceiling
None
Temperature
84 °F, dew point 77 °F
Altimeter
29.00 inHg
Observed at
MOB, 66 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.