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20130328004989A

Accident · Destroyed
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FAA accident report · Mooney M20A · Wickiup, AZ · March 28, 2013

FAA Aviation Safety Information Portal

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Date
March 28, 2013 · 12:00 local
Place
Wickiup, AZ
Phase of flight
Cruise/Level Flight
Operating rules
General operating rules (Part 91)
Damage
Destroyed
Aircraft
N6018X
NTSB investigation
NTSBWPR13FA169
Reported as
Mooney M20A
Reported engine
Lycoming O&VO-360 series
People aboard
3
Fatal injuries
1
Other injuries
2
Pilot’s certificate
Private pilot
N6018XRegistration cancelled Jul 19, 2018 · Mooney M20AS/N 1606Airframe modelMooney M20AEngine modelLycoming O&VO-360 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.

This aircraft departed sedona airport, sez, at approximately 12:00 hours local time, 28 March 2013. Shortly after departure the pilot reported loss of engine oil pressure. ATC cleared aircraft to bagdag AZ. Airport. Engine failure resulted in an off airport crash landing. An FAA inspector witnessed engine tear down. The number two rod bearing was observed to have spun upon the crankshaft stacking the bearing halves on top of each other. The number three rod was siezed to the crankshaft, the number four rod bearing was severely galled and near siezure. There was approx one quart (+/-) of oil remaining in the sump. The oil pump was functional. When the propeller was removed a tapered shim was discovered to have been installed between the cranshaft flange and the propeller. There are index markings on the face of the crankshaft flange indicating "in" and "out". A dial indicator readout of the crankshaft flange face indicated the crankshaft flange was out by positive 30 thounsands of an inch and negative fifty seven thousands of an inch. The tapered shim was approximately the thickness of a nickel coin on the thick side and near paper thin on the opposite side. Shim part number B-1322 was missing according to the hartzell assemby drawing. Aircraft was not equipped with shoulder harness. The log books are not yet available for this aircraft.

As the FAA filed it

THIS AIRCRAFT DEPARTED SEDONA AIRPORT, SEZ, AT APPROXIMATELY 12:00 HOURS LOCAL TIME, 28 MARCH 2013. SHORTLY AFTER DEPARTURE THE PILOT REPORTED LOSS OF ENGINE OIL PRESSURE. ATC CLEARED AIRCRAFT TO BAGDAG AZ. AIRPORT. ENGINE FAILURE RESULTED IN AN OFF AIRPORT CRASH LANDING. AN FAA INSPECTOR WITNESSED ENGINE TEAR DOWN. THE NUMBER TWO ROD BEARING WAS OBSERVED TO HAVE SPUN UPON THE CRANKSHAFT STACKING THE BEARING HALVES ON TOP OF EACH OTHER. THE NUMBER THREE ROD WAS SIEZED TO THE CRANKSHAFT, THE NUMBER FOUR ROD BEARING WAS SEVERELY GALLED AND NEAR SIEZURE. THERE WAS APPROX ONE QUART (+/-) OF OIL REMAINING IN THE SUMP. THE OIL PUMP WAS FUNCTIONAL. WHEN THE PROPELLER WAS REMOVED A TAPERED SHIM WAS DISCOVERED TO HAVE BEEN INSTALLED BETWEEN THE CRANSHAFT FLANGE AND THE PROPELLER. THERE ARE INDEX MARKINGS ON THE FACE OF THE CRANKSHAFT FLANGE INDICATING "IN" AND "OUT". A DIAL INDICATOR READOUT OF THE CRANKSHAFT FLANGE FACE INDICATED THE CRANKSHAFT FLANGE WAS OUT BY POSITIVE 30 THOUNSANDS OF AN INCH AND NEGATIVE FIFTY SEVEN THOUSANDS OF AN INCH. THE TAPERED SHIM WAS APPROXIMATELY THE THICKNESS OF A NICKEL COIN ON THE THICK SIDE AND NEAR PAPER THIN ON THE OPPOSITE SIDE. SHIM PART NUMBER B-1322 WAS MISSING ACCORDING TO THE HARTZELL ASSEMBY DRAWING. AIRCRAFT WAS NOT EQUIPPED WITH SHOULDER HARNESS. THE LOG BOOKS ARE NOT YET AVAILABLE FOR THIS AIRCRAFT.

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 WPR13FA169Accident · 1 fatalField investigationFinal reportWikieup, AZThe manufacture and installation of a nonstandard part by unknown maintenance personnel to compensate for a bent, misaligned crankshaft propeller flange, which resulted in the improper clearance of the bearings on the crankshaft journal, a loss of oil…Mar 28, 2013 · Substantial damage

Other reports on N6018X · 2

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

Accident 20071110831099ATo Init Climb(1st Pwr Reduct) · Minneapolis, MN(-23) The pilot noted that gear retraction following his initial takeoff from mic was very stiff and required great physical effort to lock the extension/retraction bar in place. Subsequent attempts at gear extension resulted in the right main landing gear…Nov 10, 2007 · Minor damageIncident 20060925018939IFinal Approach · Enid, OK(-23) On September 25, 2006, at 1655, N6018X, a Mooney-20-A hit the parameter fence during approach to runway 30 at Enid, OK (wdg). The flight was operated VMC. The operator indicated that both fuel gauges indicated about half full prior to departure from…Sep 25, 2006 · Minor damage