- Date
- January 31, 1987, 07:39 local (15:39 UTC)
- Place
- Los Angeles, CA
- Injuries
- 1 minor, 1 uninjured
- Damage
- Substantial damage
- Phase of flight
- Maneuvering
- Aircraft
- N5594CSikorsky S-58B
- Weather
- Visual (VMC) · Day
- Status
- Completed · report July 5, 1988
- Report
- Approved by Office Director
- FAA report
- 19870131057199A
- Case key
- 25513
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.
Analysis
A Sikorsky S-58B collided with a marked 253 ft AGL antenna tower (twr) while maneuvering over external load lift site. The plt indicated that he was sitting in the right seat of the acft in a right descending orbit conducting a site recon and that he was aware of the twrs presence. The plt stated that he misjudged his position re the twr. The plt indicated that he started a descent while discussing the lift plan with his crewchief. Both crewmembers who were on the right side of the acft were looking to the right at the lift site when the helicopter struck the antenna twr. The antenna twr was a properly marked obstruction and met the lighting requirements in accordance with FAA advisory circular 70/7460-1. The collision damaged the main rotor.
Aircraft
- Registration
- N5594C
- Reported as
- Sikorsky S-58B
- Category
- Helicopter
- Serial number
- 58-692
- Airframe hours
- 7,478
- Engine
- P&W PT6T3, 900 horsepower, turbo shaft
- Damage
- Substantial damage
- Flight
- Other work use · Part 133
- Operator
- Aris Helicopter Ltd
- Registered owner
- Aris Helicopter Ltd
- Airworthiness certificate
- Standard, Normal; Standard, Utility
- Last inspection
- Continuous airworthiness · January 30, 1987 · 9 hours before
- Departed
- HRR · Hawthorne, CA
- Destination
- HRR · Hawthorne, CA
- Flight plan
- Company VFR
Flight crew
As NTSB recorded them. NTSB leaves out names.
- Role
- Pilot
- Age
- 35
- Certificates
- Commercial, Airline transport, Flight instructor
- Airplane ratings
- Single-engine land, Multi-engine land
- Instrument ratings
- Airplane
- Medical
- Class 1, Valid Medical--no waivers/lim.
- Seat
- Right
- Toxicology
- Performed
- Flight hours
- 5,226 total · 700 in this make and model · 5,100 as pilot in command · 35 in the last 90 days · 20 in the last 30 days · 2 in the last 24 hours
Weather
- Conditions
- Visual (VMC) · Day
- Wind
- 40° at 6 knots
- Visibility
- 10 statute miles
- Lowest ceiling
- None
- Temperature
- 48 °F, dew point 43 °F
- Altimeter
- 30.00 inHg
- Observed at
- LAX, 8 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.