OpenAirDocs.org

20160314002699A

Accident · Substantial damage
Open the Markdown

FAA accident report · Grumman Acft ENG Cor-Schweizer G-164B · Myakka, FL · March 14, 2016

FAA Aviation Safety Information Portal

© OpenStreetMap
Date
March 14, 2016 · 14:00 local
Place
Myakka, FL
Phase of flight
Maneuver
Operating rules
Agricultural (Part 137)
Operator
5IWG
Damage
Substantial damage
Aircraft
N6654K
NTSB investigation
NTSBERA16LA130
Reported as
Grumman Acft ENG Cor-Schweizer G-164B
Reported engine
Pratt & Whitney R1340 series
People aboard
1
Fatal injuries
0
Other injuries
1
Pilot’s certificate
Commercial pilot
Pilot’s flight hours
1,400 total175 in this make and model85 in the last 90 days
N6654KRegistered now · Grumman Acft ENG Cor-Schweizer G-164BS/N 409BAirframe modelGrumman Acft ENG Cor-Schweizer G-164BEngine modelPratt & Whitney R1340 seriesReciprocating

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.

Aircraft took off from unimproved farm runway with 80 gallons of fuel in fuel tank and 15O gallons of water in the hopper to test repacked spray nozzels.

Pilot stated that approximately five minutes into flight the engine lost power but did not quit running during manuever for first spray run. No unusual noises or oil spray was reported prior to power loss.

Pilot attempted to land on dirt road but came down approximately 100 feet from road in crop field.

Main landing gear broke off and aircraft came to rest upside down with the engine displaced 45 degrees to aircraft and top wing broken free from aircraft.

Inspected engine post accident with the following findings:

All cylinders are intact and attached to the case normally.

Carburetor was fractured off the mount and destroyed by impact, therefore unable to check/test for float position or condition.

Boroscoped supercharger and physically inspected and determined that it is intact and not sheared from drive shaft.

Air intake filters, carburetor, and supercharger were full of sand from impact, this along with propeller bend and rotational scoring indicates engine was under some power at time of impact.

Removed several spark plugs for condition, plugs were invarious states due to salvage crew laying engine flat on trailer, no negative indications.

Mags appeared normal with minor impact damage to left mag.

Unable to verify internal engine continuity due to propeller being bent around engine.

Control cable continuity appeared normal.

No further action

As the FAA filed it

AIRCRAFT TOOK OFF FROM UNIMPROVED FARM RUNWAY WITH 80 GALLONS OF FUEL IN FUEL TANK AND 15O GALLONS OF WATER IN THE HOPPER TO TEST REPACKED SPRAY NOZZELS.

PILOT STATED THAT APPROXIMATELY FIVE MINUTES INTO FLIGHT THE ENGINE LOST POWER BUT DID NOT QUIT RUNNING DURING MANUEVER FOR FIRST SPRAY RUN. NO UNUSUAL NOISES OR OIL SPRAY WAS REPORTED PRIOR TO POWER LOSS.

PILOT ATTEMPTED TO LAND ON DIRT ROAD BUT CAME DOWN APPROXIMATELY 100 FEET FROM ROAD IN CROP FIELD.

MAIN LANDING GEAR BROKE OFF AND AIRCRAFT CAME TO REST UPSIDE DOWN WITH THE ENGINE DISPLACED 45 DEGREES TO AIRCRAFT AND TOP WING BROKEN FREE FROM AIRCRAFT.

INSPECTED ENGINE POST ACCIDENT WITH THE FOLLOWING FINDINGS:

ALL CYLINDERS ARE INTACT AND ATTACHED TO THE CASE NORMALLY.

CARBURETOR WAS FRACTURED OFF THE MOUNT AND DESTROYED BY IMPACT, THEREFORE UNABLE TO CHECK/TEST FOR FLOAT POSITION OR CONDITION.

BOROSCOPED SUPERCHARGER AND PHYSICALLY INSPECTED AND DETERMINED THAT IT IS INTACT AND NOT SHEARED FROM DRIVE SHAFT.

AIR INTAKE FILTERS, CARBURETOR, AND SUPERCHARGER WERE FULL OF SAND FROM IMPACT, THIS ALONG WITH PROPELLER BEND AND ROTATIONAL SCORING INDICATES ENGINE WAS UNDER SOME POWER AT TIME OF IMPACT.

REMOVED SEVERAL SPARK PLUGS FOR CONDITION, PLUGS WERE INVARIOUS STATES DUE TO SALVAGE CREW LAYING ENGINE FLAT ON TRAILER, NO NEGATIVE INDICATIONS.

MAGS APPEARED NORMAL WITH MINOR IMPACT DAMAGE TO LEFT MAG.

UNABLE TO VERIFY INTERNAL ENGINE CONTINUITY DUE TO PROPELLER BEING BENT AROUND ENGINE.

CONTROL CABLE CONTINUITY APPEARED NORMAL.

NO FURTHER ACTION

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 ERA16LA130Accident · No injuriesLimited investigationFinal reportMyakka, FLA total loss of engine power for reasons that could not be determined because postaccident examination of the engine revealed no mechanical anomalies that would have precluded normal operation.Mar 14, 2016 · Substantial damage

Other reports on N6654K · 1

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

Accident 19800714027669ALow Level Operations · Atlanta, ILPilot did not look field over while spraying. Hit power line.Jul 14, 1980 · Substantial damage