20060518008529I

Incident · Minor damage

FAA incident report · Cessna 421B · San Martin, CA · May 18, 2006

Date: May 18, 2006 · 22:30 local
Place: San Martin, CA
Airport: South County Airport Of Santa Cla
Phase of flight: Roll-Out (Fixed Wing)
Operating rules: General operating rules (Part 91)
Operator: L6UA
Damage: Minor damage
Aircraft: N421WL
Reported as: Cessna 421B
Reported engine: Continental GTSIO520H
People aboard: 4
Fatal injuries: 0
Pilot’s flight hours: 1,700 total40 in this make and model44 in the last 90 days

N421WLRegistration cancelled Oct 31, 2020 · Cessna 421BS/N 421B0328 · Built 1973 Airframe modelCessna 421B Engine modelContinental GTSIO-520 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.

(-23) The center torque linkage connecting bolt assy was not installed properly by maintenance personnel which resulted in the aircraft left main landing gear twisting and rotating at least 90 degrees when the aircraft touched down and eventually resulted in the gear shearing off at the top of the barrel piston causing the aircraft to slide off the runway. The aircraft was said to be crabbing to the right due to a light crosswind which put a side load on the tire at touch down. The twisting force appears to have been enough to cause the center torque link to separate over the nut end of the bolt.

As the FAA filed it

(-23) THE CENTER TORQUE LINKAGE CONNECTING BOLT ASSY WAS NOT INSTALLED PROPERLY BY MAINTENANCE PERSONNEL WHICH RESULTED IN THE AIRCRAFT LEFT MAIN LANDING GEAR TWISTING AND ROTATING AT LEAST 90 DEGREES WHEN THE AIRCRAFT TOUCHED DOWN AND EVENTUALLY RESULTED IN THE GEAR SHEARING OFF AT THE TOP OF THE BARREL PISTON CAUSING THE AIRCRAFT TO SLIDE OFF THE RUNWAY. THE AIRCRAFT WAS SAID TO BE CRABBING TO THE RIGHT DUE TO A LIGHT CROSSWIND WHICH PUT A SIDE LOAD ON THE TIRE AT TOUCH DOWN. THE TWISTING FORCE APPEARS TO HAVE BEEN ENOUGH TO CAUSE THE CENTER TORQUE LINK TO SEPARATE OVER THE NUT END OF THE BOLT.

Other reports on N421WL · 1

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

Accident 20190609017389ALanding: Approach · Moriarity, NMOn June 9, 2019, at 1210 MDT, a Cessna 421B registered to [privacy data omitted] sustained a hard landing at Moriarity municipal airport, Moriarity, new Mexico, while on a personal flight. Visual meteorological conditions prevailed at the time and a flight…Jun 9, 2019 · Substantial damage