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20090728014689A

Accident · Substantial damage
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FAA accident report · Allied G-164A · Riverdale, CA · July 28, 2009

FAA Aviation Safety Information Portal

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Date
July 28, 2009 · 11:00 local
Place
Riverdale, CA
Phase of flight
Landing
Operating rules
Agricultural (Part 137)
Operator
PXAG
Damage
Substantial damage
Aircraft
N8741H
NTSB investigation
NTSBWPR09LA373
Reported as
Allied G164A
Reported engine
Pratt & Whitney R134059
Fatal injuries
0
Other injuries
0
Pilot’s flight hours
0 total0 in this make and model0 in the last 90 days
N8741HRegistration cancelled Jun 15, 2024 · Grumman G-164AS/N 1508Airframe modelGrumman G-164A

From the FAA’s Accident/Incident Data System (AIDS), through its Aviation Safety Information Portal, as reported. The NTSB investigates accidents separately, and its record of an accident is the fuller one. The aircraft is matched to the registry by N-number and event date, checked against the reported make and model; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.

What happened

The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.

(-23) Pilot stated that while maneuvering during aerial application, the engine lost power. An emergency landing was initiated in a alfalfa field that was part of the application order. The aircraft touched down in a three point attitude, but due to the fact that the field was currently being floor irrigated. The soft ground caused the aircraft become inverted during rollout. Inspection of the aircraft at site found that the engine appears to have seized. No cause has been made at this time for the engine failure. Amendment 08/03/2009 - inspection of the engine as the aircraft was recovered from the alfalfa field found that the engine had seized prior to landing as indicated by no rotational damage to the propeller. Inspection of the engine oil sump chip plug found the magnet covered with ferrous material. The pilot stated that the chip plug warning light was functional and was checked regularly, however, since the engine was rapidly failing, he did ot bother to check the engine instruments and concentrated on the emergency landing. The aircraft landed in a muddy field and ended up on its back with the engine removed, so a continuity of the chip plug warning light system could not be performed. No external failure of the engine was evident. The engine will be shipped to aero engines, los angles, CA for tear down inspection.

As the FAA filed it

(-23) PILOT STATED THAT WHILE MANEUVERING DURING AERIAL APPLICATION, THE ENGINE LOST POWER. AN EMERGENCY LANDING WAS INITIATED IN A ALFALFA FIELD THAT WAS PART OF THE APPLICATION ORDER. THE AIRCRAFT TOUCHED DOWN IN A THREE POINT ATTITUDE, BUT DUE TO THE FACT THAT THE FIELD WAS CURRENTLY BEING FLOOR IRRIGATED. THE SOFT GROUND CAUSED THE AIRCRAFT BECOME INVERTED DURING ROLLOUT. INSPECTION OF THE AIRCRAFT AT SITE FOUND THAT THE ENGINE APPEARS TO HAVE SEIZED. NO CAUSE HAS BEEN MADE AT THIS TIME FOR THE ENGINE FAILURE. AMENDMENT 08/03/2009 - INSPECTION OF THE ENGINE AS THE AIRCRAFT WAS RECOVERED FROM THE ALFALFA FIELD FOUND THAT THE ENGINE HAD SEIZED PRIOR TO LANDING AS INDICATED BY NO ROTATIONAL DAMAGE TO THE PROPELLER. INSPECTION OF THE ENGINE OIL SUMP CHIP PLUG FOUND THE MAGNET COVERED WITH FERROUS MATERIAL. THE PILOT STATED THAT THE CHIP PLUG WARNING LIGHT WAS FUNCTIONAL AND WAS CHECKED REGULARLY, HOWEVER, SINCE THE ENGINE WAS RAPIDLY FAILING, HE DID OT BOTHER TO CHECK THE ENGINE INSTRUMENTS AND CONCENTRATED ON THE EMERGENCY LANDING. THE AIRCRAFT LANDED IN A MUDDY FIELD AND ENDED UP ON ITS BACK WITH THE ENGINE REMOVED, SO A CONTINUITY OF THE CHIP PLUG WARNING LIGHT SYSTEM COULD NOT BE PERFORMED. NO EXTERNAL FAILURE OF THE ENGINE WAS EVIDENT. THE ENGINE WILL BE SHIPPED TO AERO ENGINES, LOS ANGLES, CA FOR TEAR DOWN INSPECTION.

NTSB investigation

The NTSB’s investigation of this event, with its probable cause and findings. Matched to this report by N-number and date.

NTSB WPR09LA373Accident · Minor injuriesLimited investigationFinal reportRiverdale, CAThe partial loss of engine power due to the failure of the engine's supercharger-blower.Jul 28, 2009 · Substantial damage

Other reports on N8741H · 1

Matched to the same aircraft by N-number and date.

Accident 19861124068029ALow Level Operations · Fresno, CAThe aircraft struck wires during aerial spraying operations. The pilot was attempting to underfly the wires.Nov 24, 1986 · Substantial damage