LAX84LA417

NTSB accident investigation · Grumman G-164B · Delhi, CA · July 28, 1984

Accident · No injuriesLimited investigationFinal report
Date
July 28, 1984, 05:30 local (12:30 UTC)
Place
Delhi, CA
Injuries
1 uninjured
Damage
Destroyed
Phase of flight
Initial climb
Aircraft
N6711QGrumman G-164B
Weather
Visual (VMC) · Dawn
Status
Completed
Report
Approved by Office Director
Case key
24356

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.

In flight collision with objectTakeoff - initial climb
Object - tree(s)Factor
Clearance - not attainedPilot in commandCause
Aircraft performance,takeoff capability - exceededFactor
Load jettison - performedPilot in commandFactor
Remedial action - delayedPilot in commandCause
Performance data - not identifiedPilot in commandCause
Throttle/power control - improper use ofPilot in commandCause

Analysis

The plt took off so early it was described by a witness as still being dark. The elevation of the accident was higher than the takeoff point. The operator said the plt tended to be easy on the equipment and throttled back shortly after takeoff. He stated that the engine sounded normal until impact with the trees. There was no wind. In the opinion of the operator the plt got behind the power curve before he realized it. The plt dumped the load at some point in this occurrence.

Aircraft

Registration
N6711Q
Reported as
Grumman G-164B
Category
Airplane
Serial number
227B
Airframe hours
1,975
Engine
P&W R-985-AW14B, 600 horsepower, reciprocating
Damage
Destroyed
Fire
On-Ground
Flight
Aerial application · Part 137
Registered owner
Bettencourt Flying Service
Airworthiness certificate
Special, Restricted (Special)
Last inspection
Annual · April 28, 1984 · 21 hours before
Departed
NONE · Delhi, CA

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
35
Certificate
Commercial
Airplane ratings
Single-engine land
Medical
Class 2, Valid Medical--w/ waivers/lim
Seat
Center
Flight hours
7,721 total · 2,421 in this make and model · 7,721 as pilot in command · 119 in the last 90 days · 80 in the last 30 days · 6 in the last 24 hours

Weather

Conditions
Visual (VMC) · Dawn
Wind
330° at 3 knots
Visibility
20 statute miles
Lowest ceiling
None
Temperature
64 °F, dew point 48 °F
Altimeter
29.00 inHg
Observed at
MER, 10 nm away