Service difficulty report · Disc Shaft

Difficulty date
December 14, 1995
Submitted
March 26, 2000
Operation
Air carrier
Engine
Lyc ALF502R5
Part
Disc Shaft
Part number
2143030R21
Condition
Loose Blades
Location
3rd Stage Turb
Part time
11,024 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

(CAN)ENGINE REMOVED DUE TO BOROSCOPE INSPECTION OF THE 2ND STAGE NOZZLE REVEALING CRACKING IN THE INNER SUPPORT, TO THE MAINTENANCE MANUAL LIMITS. DURING THE ENGINE TEARDOWN THE 3RD STAGE NOZZLE DISC BLADE S WERE FOUND LOOSE, DUE TO LOOSE RIVETS.