- Date
- September 27, 2001, 09:00 local (15:00 UTC)
- Place
- Parowan, UT
- Injuries
- 1 uninjured
- Damage
- Substantial damage
- Phase of flight
- Maneuvering
- Aircraft
- N9925Grumman-Schweizer G-164A
- Weather
- Visual (VMC) · Day
- Status
- Completed · report December 6, 2002
- Report
- Approved by Office Director
- Parties
- Federal Aviation Administration
- FAA report
- 20010927027399A
- Case key
- 53516
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 pilot's failure to maintain adequate airspeed which resulted in an inadvertent stall/mush into terrain. Contributing factors were the pilot's diverted attention, the rising terrain, and the high density altitude weather condition.
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
The pilot said that he completed an application pass, and turned his head to look for his flagman. He said there was rising terrain in front of him, and he immediately applied full power. The airplane began losing airspeed, and he was unable to increase the climb rate. The airplane impacted the ground in a rough ravine. The left wing spar was bent up and the fuselage was wrinkled. The calculated density altitude was 9,736 feet.
Factual narrative
On September 27, 2001, at approximately 0900 mountain daylight time, a Grumman-Schweizer G-164A, N9925, was substantially damaged when it impacted terrain while maneuvering during an aerial application pass near Parowan, Utah. The commercial pilot, the sole occupant in the airplane, was not injured. The airplane was being operated by Parowan Crop Dusting Services, Inc., Parowan, Utah, under Title 14 CFR Part 137. Visual meteorological conditions prevailed for the local aerial application flight that originated approximately 30 minutes before the accident.
The pilot said that he completed an application pass, and turned his head to look for his flagman. He said there was rising terrain in front of him, and he immediately applied full power. The airplane began losing airspeed, and he was unable to increase the climb rate. The airplane impacted the ground in a rough ravine. The left wing spar was bent up and the fuselage was wrinkled.
The calculated density altitude was 9,736 feet.
Aircraft
- Registration
- N9925
- Reported as
- Grumman-Schweizer G-164A
- Category
- Airplane
- Serial number
- 1331
- Airframe hours
- 7,426
- Engine
- Continental R-975-46A GA2, 525 horsepower, reciprocating
- Damage
- Substantial damage
- Flight
- Aerial application · Part 137
- Registered owner
- Parowan Crop Dusting Services, Inc.
- Airworthiness certificate
- Special, Restricted (Special)
- Last inspection
- Annual · June 1, 2001 · 49 hours before
- Departed
- 1L9 · Parowan, UT
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
- 44
- Injuries
- None
- Certificate
- Commercial
- Airplane ratings
- Single-engine land
- Instrument ratings
- Airplane
- Medical
- Class 2
- Last flight review
- November 15, 2000
- Seat
- Front
- Flight hours
- 1,692 total · 250 in this make and model · 1,530 as pilot in command · 160 in the last 90 days · 21 in the last 30 days · 1 in the last 24 hours
Weather
- Conditions
- Visual (VMC) · Day
- Wind
- 0° at 0 knots
- Visibility
- 10 statute miles
- Lowest ceiling
- None
- Temperature
- 59 °F, dew point 43 °F
- Altimeter
- 30.19 inHg
- Observed at
- CDC, 15 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.
Other investigations on N9925 · 2
Matched to the same aircraft by N-number and date.