LAX89LA324

NTSB accident investigation · Hughes 269A · Agana · September 18, 1989

Accident · FatalLimited investigationFinal report
Date
September 18, 1989
Place
Agana
Injuries
2 fatal
Damage
Destroyed
Phase of flight
Maneuvering
Aircraft
N8134YHughes 269A
Weather
Visual (VMC) · Day
Status
Completed · report July 29, 1992
Report
Approved by Office Director
FAA report
19890918065469A
Case key
26510

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

Inadequate visual lookout by the pilot, which resulted in his failure to see-and-avoid the power line. The power line was a related factor.

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.

In flight collision with objectManeuvering
Object - wire,transmissionFactor
Visual lookout - inadequatePilot in commandCause

Analysis

The helicopter was being operated on a visual reconnaissance/orientation flt with a plt & a police agent aboard. While flying at about 200 ft above the fonte river (following a valley), the helicopter collided with a power line that crossed the river. During impact, the main rotor system separated & the helicopter crashed in dense jungle. No preimpact mechanical problem was evident.

Aircraft

Registration
N8134Y
Reported as
Hughes 269A
Category
Helicopter
Serial number
180763
Airframe hours
13,858
Engine
Lycoming HIO-360-B1A, 180 horsepower, reciprocating
Damage
Destroyed
Flight
Public aircraft · Part 91
Operator
Government Of Guam
Registered owner
U.S. Dept Of The Interior
Departed
PGUM · Nas Agana, OF

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
42
Certificates
Flight instructor, Commercial
Airplane ratings
Single-engine land, Multi-engine land
Instrument ratings
Airplane, Helicopter
Medical
Class 2, Valid Medical--no waivers/lim.
Seat
Right
Toxicology
Performed
Flight hours
562 total · 40 in this make and model · 429 as pilot in command · 28 in the last 90 days · 13 in the last 30 days · 2 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
90° at 8 knots
Visibility
20 statute miles
Lowest ceiling
25,000 ft overcast
Temperature
84 °F, dew point 75 °F
Altimeter
29.00 inHg
Observed at
PGUM, 3 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.