IAD97GA054

NTSB accident investigation · Schweizer 269C · Cleveland, OH · March 20, 1997

Accident · No injuriesFinal report
Date
March 19, 1997, 23:13 local (Mar 20, 1997, 04:13 UTC)
Place
Cleveland, OH
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Enroute
Aircraft
N892CPSchweizer 269C
Weather
Visual (VMC) · Night/dark
Status
Completed · report April 15, 1999
Report
Approved by Office Director
FAA report
19970319003379A
Case key
28141

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 engine failure from the rod cap bolt being sheared and the separation of the number two cylinder separating from the crankcase.

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(total) - mech failure/malfCruise - normal
Engine assembly,connecting rod bolt - shearedCause
Engine assembly,cylinder - disconnectedCause
Forced landingEmergency descent/landing
In flight collision with terrain/waterDescent - emergency
Terrain condition - loose gravel/sandy

Analysis

The pilot stated while on patrol 'at about 500 feet above ground level, the helicopter experienced major engine failure'. The pilot attempted to autorotate the helicopter to a vacant parking lot. Upon impact, the tail rotor snapped off and the helicopter turned 180 degrees to the left. Examination of the engine found the number two cylinder had separated from the engine block and the rod cap bolt had been sheared. Maintenance records show the removal and reinstallation of the number one cylinder at 646.2 hours since overhaul which was 66.6 hours prior to the accident.

Factual narrative

On March 19, 1997, at about 2313 eastern standard time, a Schweitzer 268C helicopter, N892CP, operated by the City of Cleveland as a police helicopter, crashed into a vacant parking lot while on routine patrol in Cleveland, Ohio. The flight was conducted under the provisions of Title 14 CFR 91. The pilot and passenger both stated that they heard a loud noise and the engine quit. The pilot executed an autorotation into a parking lot causing substantial damage to the helicopter. The private pilot and passenger were not injured. Visual meteorological conditions prevailed and no flight plan was filed for the local flight.

The pilot stated while on patrol over the city of Cleveland "at about 500 feet above ground level, the helicopter experienced major engine failure". The pilot attempted to autorotate the helicopter to a vacant parking lot. Upon impact, the tail rotor snapped off and the helicopter turned 180 degrees to the left.

Examination of the engine by NTSB, Textron Lycoming, G&W aircraft, and Cleveland Police Department found the number two cylinder had separated from the engine block and the rod cap bolt had been sheared. There were indications of wear to the number two cylinder deck and number two barrel flange. There was also heavy fretting to the number two and number three bearing crankcase saddles. Maintenance records show the removal and reinstallation of the number one cylinder at 646.2 hours since overhaul which was 66.6 hours prior to the accident.

Aircraft

Registration
N892CP
Reported as
Schweizer 269C
Category
Helicopter
Serial number
1423
Airframe hours
4,734
Engine
Lycoming HIO-360, 205 horsepower, reciprocating
Damage
Substantial damage
Flight
Public aircraft · Part 91
Operator
City Of Cleveland
Registered owner
City Of Cleveland
Airworthiness certificate
Standard, Normal
Last inspection
AAIP · January 31, 1997 · 18 hours before
Departed
BKL · OH
Flight plan
VFR
Airport
BKL · Burke Lakefront

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
53
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 2, Valid Medical--w/ waivers/lim
Flight hours
2,861 total · 2,346 in this make and model

Weather

Conditions
Visual (VMC) · Night/dark
Visibility
15 statute miles
Lowest ceiling
1,000 ft broken
Altimeter
29.00 inHg
Observed at
BKL

FAA reports on this event · 1

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