DEN88LA145

NTSB accident investigation · Sikorsky S-58J · Sioux Falls, SD · July 5, 1988

Accident · Minor injuriesLimited investigationFinal report
Date
July 5, 1988, 08:40 local (13:40 UTC)
Place
Sioux Falls, SD
Injuries
1 minor
Damage
Substantial damage
Phase of flight
Initial climb
Aircraft
N62243Sikorsky S-58J
Weather
Visual (VMC) · Day
Status
Completed · report June 7, 1989
Report
Approved by Office Director
FAA report
19880705027099A
Case key
17493

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

On this page

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/malfTakeoff - initial climb
Accessory drive assy,drive shaft - shearedCause
Load jettison - performedPilot in command
Forced landingDescent - emergency
Autorotation - performedPilot in command
Altitude - inadequateFactor
Hard landingLanding - flare/touchdown

Analysis

N62243 was being used to lift air conditioning units to the top of a shopping mall. The plt stated that he was on the 16th lift of the day and had just taken off when he heard two loud pops and the engine lost power. After jettisoning the load he executed an autorotative landing. According to the pilot the aircraft made a very hard landing. The investigation revealed the accessory drive and starter shaft had sheared on the forward end, in the splined area.

Aircraft

Registration
N62243
Reported as
Sikorsky S-58J
Category
Helicopter
Serial number
58-756
Airframe hours
3,708
Engine
Wright R-1820-84C, 1,475 horsepower, reciprocating
Damage
Substantial damage
Flight
Other work use · Part 133
Registered owner
Turner Copter Service Inc.
Airworthiness certificate
Standard, Normal
Last inspection
Annual · March 28, 1988 · 12 hours before

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
49
Certificate
Commercial
Airplane ratings
Single-engine land, Multi-engine land
Instrument ratings
Airplane, Helicopter
Medical
Class 2, Valid Medical--w/ waivers/lim
Seat
Right
Flight hours
12,208 total · 2,250 in this make and model · 10,307 as pilot in command · 50 in the last 90 days · 30 in the last 30 days · 2 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
150° at 9 knots
Visibility
15 statute miles
Lowest ceiling
None
Temperature
75 °F, dew point 63 °F
Altimeter
29.00 inHg

FAA reports on this event · 1

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

Other investigations on N62243 · 1

Matched to the same aircraft by N-number and date.