Squawk Box

January 2006 Issue

Squawk Box: 01/06

Cessna 150M
Cracked Engine Mount

A mechanic found the R/H lower engine mount tube cracked. “The crack is located within one inch of the nose wheel strut support. This crack is ¾-inch in length, moving around the circumference of the tube.” The mount (p/n 0451120-1) was replaced. Part Total Time: 5002.1 hours.

Cessna 172
Cracked Rear Wing Spar

A crack was found in the rear wing spar. A search of the SDRS database found three airplanes where cracked spars were detected. The total time in service (TIS) for these three airplanes ranged between 12,000 and 16,000 hours. The cracks are hidden between the lower skin and the flap track support rib. Use of a magnify...

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