SDR 95ZZZX1484

Service difficulty report · Seal

Difficulty date
March 7, 1995
Submitted
March 26, 2000
Operation
General aviation
Filed by
DSCR311D
National Flight Services Inc
Engine
Garrtt TPE33112UAR
Part
Seal
Part number
31038393
Condition
Cracked
Location
Hot Section
Part time
3,581 hours
Stage of operation
IN
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

DURING HOT SECTION INSPECTION, FOUND PART CRACKED. SB 72-0840 AUTHORIZES INSTALLATION OF THIS PART TO PROVIDE INCREASED SEAL PLATE TENSION AGAINST FIRST ROTOR ASSY. SUBMITTER BELIEVES THIS INCREASED TENSION IS CAUSING THIS PART TO CRACK. SUGGEST ALLIED SIGNAL ENGINEERING REVIEW PROBLEM.