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20100106025819I

Incident · No damage
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FAA incident report · Mooney M20J · Glencoe, MN · January 6, 2010

FAA Aviation Safety Information Portal

© OpenStreetMap
Date
January 6, 2010 · 14:45 local
Place
Glencoe, MN
Phase of flight
Descent
Operating rules
General operating rules (Part 91)
Operator
TBDA
Damage
No damage
Aircraft
N57651
Reported as
Mooney M20J
Reported engine
Lycoming AEIO-360 series
People aboard
2
Fatal injuries
0
Other injuries
0
Pilot’s flight hours
0 total0 in this make and model0 in the last 90 days
N57651Registered now · Mooney M20JS/N 24-1484 · Built 1984Airframe modelMooney M20JEngine modelLycoming AEIO-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.

While conducting a proficiency check, (pc) the aircraft throttle cable became jammed. The throttle could not be moved forward or aft. This was noticed during a simulated emergency operations maneuver. The aircraft had descended from 5000 feet to approximately 3000 feet when the jammed throttle occurred. The pilot in command,(PIC) who was administrating the pc tried to move the throttle unsuccessfully. The PIC took control of the aircraft and the second in command (SIC) tried to move the throttle, again unsuccessfully. The PIC decided to land the aircraft in a field 2 miles northeast of Glencoe, MN. And approximately 3 miles north of the Glencoe, MN (gyl) airport. The power setting of the jammed throttle was near idle power and the crew determined they would not make the gyl airport. The crew landed the aircraft in a snow covered field successfully with no damage to the aircraft and no injuries to the two crew members. Investigation of the incident revealed that the throttle control cable had, over time, broken apart and expanded or birdcaged. This deterioration within the protective tubing of the cable caused the cable to jam. When the throttle assembly was removed from the aircraft the cable broke apart. The cable at the point of breakage appeared to have been twisted causing the strands of cable to break and birdcage. The cable assembly will be replaced and the aircraft will be put back into service.

As the FAA filed it

WHILE CONDUCTING A PROFICIENCY CHECK, (PC) THE AIRCRAFT THROTTLE CABLE BECAME JAMMED. THE THROTTLE COULD NOT BE MOVED FORWARD OR AFT. THIS WAS NOTICED DURING A SIMULATED EMERGENCY OPERATIONS MANEUVER. THE AIRCRAFT HAD DESCENDED FROM 5000 FEET TO APPROXIMATELY 3000 FEET WHEN THE JAMMED THROTTLE OCCURRED. THE PILOT IN COMMAND,(PIC) WHO WAS ADMINISTRATING THE PC TRIED TO MOVE THE THROTTLE UNSUCCESSFULLY. THE PIC TOOK CONTROL OF THE AIRCRAFT AND THE SECOND IN COMMAND (SIC) TRIED TO MOVE THE THROTTLE, AGAIN UNSUCCESSFULLY. THE PIC DECIDED TO LAND THE AIRCRAFT IN A FIELD 2 MILES NORTHEAST OF GLENCOE, MN. AND APPROXIMATELY 3 MILES NORTH OF THE GLENCOE, MN (GYL) AIRPORT. THE POWER SETTING OF THE JAMMED THROTTLE WAS NEAR IDLE POWER AND THE CREW DETERMINED THEY WOULD NOT MAKE THE GYL AIRPORT. THE CREW LANDED THE AIRCRAFT IN A SNOW COVERED FIELD SUCCESSFULLY WITH NO DAMAGE TO THE AIRCRAFT AND NO INJURIES TO THE TWO CREW MEMBERS.INVESTIGATION OF THE INCIDENT REVEALED THAT THE THROTTLE CONTROL CABLE HAD, OVER TIME, BROKEN APART AND EXPANDED OR BIRDCAGED. THIS DETERIORATION WITHIN THE PROTECTIVE TUBING OF THE CABLE CAUSED THE CABLE TO JAM. WHEN THE THROTTLE ASSEMBLY WAS REMOVED FROM THE AIRCRAFT THE CABLE BROKE APART. THE CABLE AT THE POINT OF BREAKAGE APPEARED TO HAVE BEEN TWISTED CAUSING THE STRANDS OF CABLE TO BREAK AND BIRDCAGE. THE CABLE ASSEMBLY WILL BE REPLACED AND THE AIRCRAFT WILL BE PUT BACK INTO SERVICE.

Other reports on N57651 · 2

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

Incident 19971220045969ILevel Off Touchdown · Sioux Falls, SD(-23) Landed aircraft with gear up. Landing gear checked out fine with no mechanical problems after the incident.Dec 20, 1997 · Minor damageIncident 19960607027099ILevel Off Touchdown · Duluth, MNNarrative: pilot was landing on rwy 32 at sky Harbor with wind coming over trees at approximately 020. Made a bad landing and porpoised. Decided not to go around but put it down. Landed hard on nose gear and hit prop. No injuries. Prop and gear damaged.…Jun 7, 1996 · Minor damage