DEN85LA173

NTSB accident investigation · Grumman G-164A · Deming, NM · June 22, 1985

Accident · No injuriesLimited investigationFinal report
Date
June 22, 1985, 08:30 local (14:30 UTC)
Place
Deming, NM
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Maneuvering
Aircraft
N5337Grumman G-164A
Weather
Visual (VMC) · Day
Status
Completed
Report
Approved by Office Director
FAA report
19850622069949A
Case key
16712

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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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.

Airframe/component/system failure/malfunctionManeuvering - turn to reverse direction
Propeller governor control - failure,totalCause
Maintenance,installation - improperOther maintenance personnelCause
Propeller system/accessories - improperCause
Forced landingDescent - emergency
Load jettison - performedPilot in command
On ground/water collision with objectLanding - roll
Terrain condition - dirt bank/rising embankmentFactor
Terrain condition - high vegetationFactor
Nose overLanding - roll

Analysis

The plt told FAA he was spraying a cotton field and was turning around from a swath run when the propeller feathered. The plt told NTSB that the acft 'pitched upward and lost power.' Acft type certificate shows that a hamilton standard propeller m/n 2D30/6101A-12-13-14 is installed. Propeller removed from acft was a hartzell m/n HCB3W30-2B, an unapproved installation. Prop disassembly revealed a spacer had been placed in ring assembly, making it impossible for prop to feather. Blade clamps inside prop hub wee broken. No. 1 blade was in feathered position, no. 2 blade was near feather, and no. 3 blade was past feather. There was no evidence of an oil loss or prop governor failure/malfunction.

Aircraft

Registration
N5337
Reported as
Grumman G-164A
Category
Airplane
Serial number
628
Airframe hours
4,102
Engine
P&W R-985-AN1, 450 horsepower, reciprocating
Damage
Substantial damage
Flight
Aerial application · Part 137
Registered owner
Walter L. Bennett
Airworthiness certificate
Special, Restricted (Special)
Last inspection
100 hour · February 18, 1985 · 61 hours before
Departed
Deming, NM

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
52
Certificate
Commercial
Airplane ratings
Single-engine land
Medical
Class 2, Valid Medical--w/ waivers/lim
Seat
Center
Flight hours
1,474 total · 1,474 in this make and model · 1,390 as pilot in command · 150 in the last 90 days · 10 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
230° at 6 knots
Visibility
60 statute miles
Lowest ceiling
None
Temperature
81 °F, dew point 39 °F
Altimeter
30.00 inHg
Observed at
DMN, 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.