Service difficulty report · Link · Cessna 172E

Difficulty date
December 31, 2010
Submitted
January 4, 2011
Operation
General aviation
Aircraft
N7771
Make and model
Cessna 172E
Aircraft serial
51771
Aircraft time
7,256 hours, 1,000 cycles
Engine
Rotax ROTAX912ULS
Part
Link
Part number
05430358
Condition
Cracked
Location
Nlg Steering
Part time
7,256 hours, 1,000 cycles
Stage of operation
IN
How discovered
V
Nature of condition
O
Precautionary procedure
K

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

THE NOSE GEAR UPPER STRUT TORQUE LINK HAD 2 CRACKS (1CRACK ON EACH SIDE) OF THE LOWER SIDE NEAR TO THE UPPER ATTACH POINT. IN TRYING TO FIND THE OWNER AN AIRWORTHY SERVICEABLE 1, CONTACTED 7 MAJOR SALVAGE DEALERS IN THE USA. THESE DEALERS FOUND THE SAME TYPE CRACKS IN THEIR LINKS. SUPPLIED THE DEALERS WITH A DIGITAL PHOTO OF THE DAMAGED PART. FINALLY FOUND AN UNCRACKED LINK FROM A DEALER, BUT HE FOUND 4 OF HIS WERE ALSO CRACKED. IF THE LINK WERE TO FAIL THERE WILL BE LOSS OF NOSE WHEEL STEERING AND IF THE LINK WERE TO FAIL AFTER TAKEOFF THERE IS THE POSSIBILITY OF THE NOSE WHEEL TURNING 90 DEGREES OR MORE, WHICH COULD RESULT IN COMPLETE LOSS OF THE ACFT, PILOT AND OCCUPANTS.

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