FTW98LA410

NTSB accident investigation · Grumman G-164A · Mart, TX · September 25, 1998

Accident · No injuriesLimited investigationFinal report
Date
September 25, 1998, 11:10 local (16:10 UTC)
Place
Mart, TX
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Enroute
Aircraft
N983XGrumman G-164A
Weather
Visual (VMC) · Day
Status
Completed · report February 15, 2001
Report
Approved by Office Director
FAA report
19980925026749A
Case key
44033

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

On this page

Probable cause

The loss of engine power for an undetermined reason. A factor was the lack of suitable terrain for the forced landing.

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 powerCruise
Reason for occurrence undeterminedCause
Forced landingEmergency descent/landing
On ground/water collision with objectLanding - roll
Terrain condition - none suitableFactor
Object - fence

Analysis

The commercial pilot executed a forced landing following a complete loss of engine power while en route back to the operators private airstrip. The airplane was flying at 300 feet AGL, seven to eight miles northeast of the operator's airstrip, when the engine made a 'loud pop and began to vibrate very severely.' Three to four seconds elapsed and the engine lost power. The pilot executed a forced landing to a field and the airplane came to rest upright, on a fence. The engine logbooks were reviewed and no entries were found that would have contributed to a loss of engine power. The reason for the loss of engine power could be determined.

Factual narrative

On September 25, 1998, at 1110 central daylight time, a Grumman G-164A agricultural airplane, N983X, was substantially damaged during a forced landing following a loss of engine power near, Mart, Texas. The non-instrument rated commercial pilot, sole occupant of the airplane, received minor injuries. The airplane was registered to a private individual and operated by Aggie Air Flying Services of Mart, Texas. Visual meteorological conditions prevailed and no flight was filed for the Title 14 CFR Part 137 aerial application flight. The local flight originated from a private airstrip near Mart, Texas, at 1017.

The pilot and operator reported in the Pilot/Operator Aircraft Accident Report (NTSB Form 6120.1/2), that the pilot dispensed 180 gallons of sevin, a pesticide, near Coolidge, Texas, and initiated the return flight to the operator's private airstrip near Mart. The tail wheel equipped airplane was seven to eight miles northeast of Mart, flying at 300 feet AGL, when the engine made "a loud pop and began to vibrate very severely." Three to four seconds elapsed and the engine lost power. The pilot executed a forced landing to a field and the airplane touched down 350 feet short of a five strand barbed wire fence. The pilot stated that he applied right rudder to direct the airplane away from the fence. Subsequently, the left main landing gear collapsed and the airplane came to rest upright on the fence.

The 39 years old pilot reported that he had accumulated a total of 4,000 flight hours, of which 2,500 hours were in the G-164A airplane. Furthermore, the pilot reported that he had accumulated a total of 180 hours in the last 90 days.

An FAA inspector examined the aircraft and confirmed that the left main landing gear collapsed. The left wing, including the spar, was buckled. The reason for the loss of engine power could not be determined.

Aircraft

Registration
N983X
Reported as
Grumman G-164A
Category
Airplane
Serial number
497
Airframe hours
8,362
Engine
P&W R-985-AN1, 450 horsepower, reciprocating
Damage
Substantial damage
Flight
Aerial application · Part 137
Registered owner
William N. Hurley
Airworthiness certificate
Special, Restricted (Special)
Last inspection
Annual · March 1, 1998 · 155 hours before
Departed
NONE

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
39
Certificate
Commercial
Airplane ratings
Single-engine land
Instrument ratings
Airplane
Medical
Class 2, Valid Medical--w/ waivers/lim
Seat
Center
Flight hours
4,000 total · 2,500 in this make and model · 180 in the last 90 days · 6 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
180° at 10 knots
Visibility
6 statute miles
Lowest ceiling
None
Temperature
84 °F, dew point 72 °F
Altimeter
30.00 inHg
Observed at
ACT, 20 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.